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Remove usage of the #[merge] hack with int modules

This commit is contained in:
Alex Crichton 2013-05-12 21:14:40 -04:00
parent b5ab1012f1
commit ec8fb884e9
23 changed files with 937 additions and 1145 deletions
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42
src/libstd/core.rc
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@ -88,34 +88,24 @@ pub mod prelude;
/* Primitive types */
#[path = "num/int-template.rs"] #[merge = "num/int-template/int.rs"]
pub mod int;
#[path = "num/int-template.rs"] #[merge = "num/int-template/i8.rs"]
pub mod i8;
#[path = "num/int-template.rs"] #[merge = "num/int-template/i16.rs"]
pub mod i16;
#[path = "num/int-template.rs"] #[merge = "num/int-template/i32.rs"]
pub mod i32;
#[path = "num/int-template.rs"] #[merge = "num/int-template/i64.rs"]
pub mod i64;
#[path = "num/uint-template.rs"] #[merge = "num/uint-template/uint.rs"]
pub mod uint;
#[path = "num/int_macros.rs"] mod int_macros;
#[path = "num/uint_macros.rs"] mod uint_macros;
#[path = "num/uint-template.rs"] #[merge = "num/uint-template/u8.rs"]
pub mod u8;
#[path = "num/uint-template.rs"] #[merge = "num/uint-template/u16.rs"]
pub mod u16;
#[path = "num/uint-template.rs"] #[merge = "num/uint-template/u32.rs"]
pub mod u32;
#[path = "num/uint-template.rs"] #[merge = "num/uint-template/u64.rs"]
pub mod u64;
#[path = "num/int.rs"] pub mod int;
#[path = "num/i8.rs"] pub mod i8;
#[path = "num/i16.rs"] pub mod i16;
#[path = "num/i32.rs"] pub mod i32;
#[path = "num/i64.rs"] pub mod i64;
#[path = "num/float.rs"]
pub mod float;
#[path = "num/f32.rs"]
pub mod f32;
#[path = "num/f64.rs"]
pub mod f64;
#[path = "num/uint.rs"] pub mod uint;
#[path = "num/u8.rs"] pub mod u8;
#[path = "num/u16.rs"] pub mod u16;
#[path = "num/u32.rs"] pub mod u32;
#[path = "num/u64.rs"] pub mod u64;
#[path = "num/float.rs"] pub mod float;
#[path = "num/f32.rs"] pub mod f32;
#[path = "num/f64.rs"] pub mod f64;
pub mod nil;
pub mod bool;

32
src/libstd/num/i16.rs Normal file
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@ -0,0 +1,32 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i16`
use num::BitCount;
use unstable::intrinsics;
pub use self::generated::*;
int_module!(i16, 16)
impl BitCount for i16 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i16 { unsafe { intrinsics::ctpop16(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i16 { unsafe { intrinsics::ctlz16(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i16 { unsafe { intrinsics::cttz16(*self) } }
}

32
src/libstd/num/i32.rs Normal file
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@ -0,0 +1,32 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i32`
use num::BitCount;
use unstable::intrinsics;
pub use self::generated::*;
int_module!(i32, 32)
impl BitCount for i32 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i32 { unsafe { intrinsics::ctpop32(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i32 { unsafe { intrinsics::ctlz32(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i32 { unsafe { intrinsics::cttz32(*self) } }
}

32
src/libstd/num/i64.rs Normal file
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@ -0,0 +1,32 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i64`
use num::BitCount;
use unstable::intrinsics;
pub use self::generated::*;
int_module!(i64, 64)
impl BitCount for i64 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i64 { unsafe { intrinsics::ctpop64(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i64 { unsafe { intrinsics::ctlz64(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i64 { unsafe { intrinsics::cttz64(*self) } }
}

32
src/libstd/num/i8.rs Normal file
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@ -0,0 +1,32 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i8`
use num::BitCount;
use unstable::intrinsics;
pub use self::generated::*;
int_module!(i8, 8)
impl BitCount for i8 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i8 { unsafe { intrinsics::ctpop8(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i8 { unsafe { intrinsics::ctlz8(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i8 { unsafe { intrinsics::cttz8(*self) } }
}

41
src/libstd/num/int-template/i16.rs
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@ -1,41 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i16`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = i16;
pub static bits: uint = ::u16::bits;
impl Primitive for i16 {
#[inline(always)]
fn bits() -> uint { 16 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<i16>() / 8 }
}
impl BitCount for i16 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i16 { unsafe { intrinsics::ctpop16(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i16 { unsafe { intrinsics::ctlz16(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i16 { unsafe { intrinsics::cttz16(*self) } }
}
}

41
src/libstd/num/int-template/i32.rs
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@ -1,41 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i32`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = i32;
pub static bits: uint = ::u32::bits;
impl Primitive for i32 {
#[inline(always)]
fn bits() -> uint { 32 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<i32>() / 8 }
}
impl BitCount for i32 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i32 { unsafe { intrinsics::ctpop32(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i32 { unsafe { intrinsics::ctlz32(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i32 { unsafe { intrinsics::cttz32(*self) } }
}
}

41
src/libstd/num/int-template/i64.rs
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@ -1,41 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i64`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = i64;
pub static bits: uint = ::u64::bits;
impl Primitive for i64 {
#[inline(always)]
fn bits() -> uint { 64 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<i64>() / 8 }
}
impl BitCount for i64 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i64 { unsafe { intrinsics::ctpop64(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i64 { unsafe { intrinsics::ctlz64(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i64 { unsafe { intrinsics::cttz64(*self) } }
}
}

41
src/libstd/num/int-template/i8.rs
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@ -1,41 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `i8`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = i8;
pub static bits: uint = ::u8::bits;
impl Primitive for i8 {
#[inline(always)]
fn bits() -> uint { 8 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<i8>() / 8 }
}
impl BitCount for i8 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> i8 { unsafe { intrinsics::ctpop8(*self) } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> i8 { unsafe { intrinsics::ctlz8(*self) } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> i8 { unsafe { intrinsics::cttz8(*self) } }
}
}

104
src/libstd/num/int-template/int.rs
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@ -1,104 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `int`
pub use self::inst::pow;
mod inst {
use num::{Primitive, BitCount};
pub type T = int;
pub static bits: uint = ::uint::bits;
impl Primitive for int {
#[cfg(target_word_size = "32")]
#[inline(always)]
fn bits() -> uint { 32 }
#[cfg(target_word_size = "64")]
#[inline(always)]
fn bits() -> uint { 64 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<int>() / 8 }
}
#[cfg(target_word_size = "32")]
#[inline(always)]
impl BitCount for int {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> int { (*self as i32).population_count() as int }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> int { (*self as i32).leading_zeros() as int }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> int { (*self as i32).trailing_zeros() as int }
}
#[cfg(target_word_size = "64")]
#[inline(always)]
impl BitCount for int {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> int { (*self as i64).population_count() as int }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> int { (*self as i64).leading_zeros() as int }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> int { (*self as i64).trailing_zeros() as int }
}
/// Returns `base` raised to the power of `exponent`
pub fn pow(base: int, exponent: uint) -> int {
if exponent == 0u {
//Not mathemtically true if ~[base == 0]
return 1;
}
if base == 0 { return 0; }
let mut my_pow = exponent;
let mut acc = 1;
let mut multiplier = base;
while(my_pow > 0u) {
if my_pow % 2u == 1u {
acc *= multiplier;
}
my_pow /= 2u;
multiplier *= multiplier;
}
return acc;
}
#[test]
fn test_pow() {
assert_eq!(pow(0, 0u), 1);
assert_eq!(pow(0, 1u), 0);
assert_eq!(pow(0, 2u), 0);
assert_eq!(pow(-1, 0u), 1);
assert_eq!(pow(1, 0u), 1);
assert_eq!(pow(-3, 2u), 9);
assert_eq!(pow(-3, 3u), -27);
assert_eq!(pow(4, 9u), 262144);
}
#[test]
fn test_overflows() {
assert!((::int::max_value > 0));
assert!((::int::min_value <= 0));
assert_eq!(::int::min_value + ::int::max_value + 1, 0);
}
}

89
src/libstd/num/int.rs Normal file
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@ -0,0 +1,89 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `int`
use num::BitCount;
pub use self::generated::*;
#[cfg(target_word_size = "32")] pub static bits: uint = 32;
#[cfg(target_word_size = "64")] pub static bits: uint = 64;
int_module!(int, super::bits)
#[cfg(target_word_size = "32")]
impl BitCount for int {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> int { (*self as i32).population_count() as int }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> int { (*self as i32).leading_zeros() as int }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> int { (*self as i32).trailing_zeros() as int }
}
#[cfg(target_word_size = "64")]
impl BitCount for int {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> int { (*self as i64).population_count() as int }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> int { (*self as i64).leading_zeros() as int }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> int { (*self as i64).trailing_zeros() as int }
}
/// Returns `base` raised to the power of `exponent`
pub fn pow(base: int, exponent: uint) -> int {
if exponent == 0u {
//Not mathemtically true if ~[base == 0]
return 1;
}
if base == 0 { return 0; }
let mut my_pow = exponent;
let mut acc = 1;
let mut multiplier = base;
while(my_pow > 0u) {
if my_pow % 2u == 1u {
acc *= multiplier;
}
my_pow /= 2u;
multiplier *= multiplier;
}
return acc;
}
#[test]
fn test_pow() {
assert!((pow(0, 0u) == 1));
assert!((pow(0, 1u) == 0));
assert!((pow(0, 2u) == 0));
assert!((pow(-1, 0u) == 1));
assert!((pow(1, 0u) == 1));
assert!((pow(-3, 2u) == 9));
assert!((pow(-3, 3u) == -27));
assert!((pow(4, 9u) == 262144));
}
#[test]
fn test_overflows() {
assert!((::int::max_value > 0));
assert!((::int::min_value <= 0));
assert!((::int::min_value + ::int::max_value + 1 == 0));
}

486
src/libstd/num/int-template.rs → src/libstd/num/int_macros.rs
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@ -8,7 +8,11 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use T = self::inst::T;
// FIXME(#4375): this shouldn't have to be a nested module named 'generated'
#[macro_escape];
macro_rules! int_module (($T:ty, $bits:expr) => (mod generated {
use num::{ToStrRadix, FromStrRadix};
use num::{Zero, One, strconv};
@ -16,20 +20,20 @@ use prelude::*;
pub use cmp::{min, max};
pub static bits : uint = inst::bits;
pub static bytes : uint = (inst::bits / 8);
pub static bits : uint = $bits;
pub static bytes : uint = ($bits / 8);
pub static min_value: T = (-1 as T) << (bits - 1);
pub static max_value: T = min_value - 1 as T;
pub static min_value: $T = (-1 as $T) << (bits - 1);
pub static max_value: $T = min_value - 1 as $T;
#[inline(always)]
pub fn add(x: T, y: T) -> T { x + y }
pub fn add(x: $T, y: $T) -> $T { x + y }
#[inline(always)]
pub fn sub(x: T, y: T) -> T { x - y }
pub fn sub(x: $T, y: $T) -> $T { x - y }
#[inline(always)]
pub fn mul(x: T, y: T) -> T { x * y }
pub fn mul(x: $T, y: $T) -> $T { x * y }
#[inline(always)]
pub fn div(x: T, y: T) -> T { x / y }
pub fn div(x: $T, y: $T) -> $T { x / y }
///
/// Returns the remainder of y / x.
@ -52,20 +56,20 @@ pub fn div(x: T, y: T) -> T { x / y }
///
///
#[inline(always)]
pub fn rem(x: T, y: T) -> T { x % y }
pub fn rem(x: $T, y: $T) -> $T { x % y }
#[inline(always)]
pub fn lt(x: T, y: T) -> bool { x < y }
pub fn lt(x: $T, y: $T) -> bool { x < y }
#[inline(always)]
pub fn le(x: T, y: T) -> bool { x <= y }
pub fn le(x: $T, y: $T) -> bool { x <= y }
#[inline(always)]
pub fn eq(x: T, y: T) -> bool { x == y }
pub fn eq(x: $T, y: $T) -> bool { x == y }
#[inline(always)]
pub fn ne(x: T, y: T) -> bool { x != y }
pub fn ne(x: $T, y: $T) -> bool { x != y }
#[inline(always)]
pub fn ge(x: T, y: T) -> bool { x >= y }
pub fn ge(x: $T, y: $T) -> bool { x >= y }
#[inline(always)]
pub fn gt(x: T, y: T) -> bool { x > y }
pub fn gt(x: $T, y: $T) -> bool { x > y }
///
/// Iterate over the range [`lo`..`hi`)
@ -85,11 +89,10 @@ pub fn gt(x: T, y: T) -> bool { x > y }
/// ~~~
///
#[inline(always)]
/// Iterate over the range [`start`,`start`+`step`..`stop`)
pub fn _range_step(start: T, stop: T, step: T, it: &fn(T) -> bool) -> bool {
pub fn range_step(start: $T, stop: $T, step: $T, it: &fn($T) -> bool) -> bool {
let mut i = start;
if step == 0 {
fail!("range_step called with step == 0");
fail!(~"range_step called with step == 0");
} else if step > 0 { // ascending
while i < stop {
if !it(i) { return false; }
@ -108,109 +111,101 @@ pub fn _range_step(start: T, stop: T, step: T, it: &fn(T) -> bool) -> bool {
return true;
}
pub fn range_step(start: T, stop: T, step: T, it: &fn(T) -> bool) -> bool {
_range_step(start, stop, step, it)
}
#[inline(always)]
/// Iterate over the range [`lo`..`hi`)
pub fn range(lo: T, hi: T, it: &fn(T) -> bool) -> bool {
range_step(lo, hi, 1 as T, it)
pub fn range(lo: $T, hi: $T, it: &fn($T) -> bool) -> bool {
range_step(lo, hi, 1 as $T, it)
}
#[inline(always)]
/// Iterate over the range [`hi`..`lo`)
pub fn range_rev(hi: T, lo: T, it: &fn(T) -> bool) -> bool {
range_step(hi, lo, -1 as T, it)
pub fn range_rev(hi: $T, lo: $T, it: &fn($T) -> bool) -> bool {
range_step(hi, lo, -1 as $T, it)
}
/// Computes the bitwise complement
#[inline(always)]
pub fn compl(i: T) -> T {
-1 as T ^ i
pub fn compl(i: $T) -> $T {
-1 as $T ^ i
}
/// Computes the absolute value
#[inline(always)]
pub fn abs(i: T) -> T { i.abs() }
pub fn abs(i: $T) -> $T { i.abs() }
impl Num for T {}
impl Num for $T {}
#[cfg(not(test))]
impl Ord for T {
impl Ord for $T {
#[inline(always)]
fn lt(&self, other: &T) -> bool { return (*self) < (*other); }
fn lt(&self, other: &$T) -> bool { return (*self) < (*other); }
#[inline(always)]
fn le(&self, other: &T) -> bool { return (*self) <= (*other); }
fn le(&self, other: &$T) -> bool { return (*self) <= (*other); }
#[inline(always)]
fn ge(&self, other: &T) -> bool { return (*self) >= (*other); }
fn ge(&self, other: &$T) -> bool { return (*self) >= (*other); }
#[inline(always)]
fn gt(&self, other: &T) -> bool { return (*self) > (*other); }
fn gt(&self, other: &$T) -> bool { return (*self) > (*other); }
}
#[cfg(not(test))]
impl Eq for T {
impl Eq for $T {
#[inline(always)]
fn eq(&self, other: &T) -> bool { return (*self) == (*other); }
fn eq(&self, other: &$T) -> bool { return (*self) == (*other); }
#[inline(always)]
fn ne(&self, other: &T) -> bool { return (*self) != (*other); }
fn ne(&self, other: &$T) -> bool { return (*self) != (*other); }
}
impl Orderable for T {
impl Orderable for $T {
#[inline(always)]
fn min(&self, other: &T) -> T {
fn min(&self, other: &$T) -> $T {
if *self < *other { *self } else { *other }
}
#[inline(always)]
fn max(&self, other: &T) -> T {
fn max(&self, other: &$T) -> $T {
if *self > *other { *self } else { *other }
}
/// Returns the number constrained within the range `mn <= self <= mx`.
#[inline(always)]
fn clamp(&self, mn: &T, mx: &T) -> T {
cond!(
(*self > *mx) { *mx }
(*self < *mn) { *mn }
_ { *self }
)
fn clamp(&self, mn: &$T, mx: &$T) -> $T {
if *self > *mx { *mx } else
if *self < *mn { *mn } else { *self }
}
}
impl Zero for T {
impl Zero for $T {
#[inline(always)]
fn zero() -> T { 0 }
fn zero() -> $T { 0 }
#[inline(always)]
fn is_zero(&self) -> bool { *self == 0 }
}
impl One for T {
impl One for $T {
#[inline(always)]
fn one() -> T { 1 }
fn one() -> $T { 1 }
}
#[cfg(not(test))]
impl Add<T,T> for T {
impl Add<$T,$T> for $T {
#[inline(always)]
fn add(&self, other: &T) -> T { *self + *other }
fn add(&self, other: &$T) -> $T { *self + *other }
}
#[cfg(not(test))]
impl Sub<T,T> for T {
impl Sub<$T,$T> for $T {
#[inline(always)]
fn sub(&self, other: &T) -> T { *self - *other }
fn sub(&self, other: &$T) -> $T { *self - *other }
}
#[cfg(not(test))]
impl Mul<T,T> for T {
impl Mul<$T,$T> for $T {
#[inline(always)]
fn mul(&self, other: &T) -> T { *self * *other }
fn mul(&self, other: &$T) -> $T { *self * *other }
}
#[cfg(not(test))]
impl Div<T,T> for T {
impl Div<$T,$T> for $T {
///
/// Integer division, truncated towards 0. As this behaviour reflects the underlying
/// machine implementation it is more efficient than `Integer::div_floor`.
@ -230,11 +225,11 @@ impl Div<T,T> for T {
/// ~~~
///
#[inline(always)]
fn div(&self, other: &T) -> T { *self / *other }
fn div(&self, other: &$T) -> $T { *self / *other }
}
#[cfg(not(test))]
impl Rem<T,T> for T {
impl Rem<$T,$T> for $T {
///
/// Returns the integer remainder after division, satisfying:
///
@ -257,19 +252,19 @@ impl Rem<T,T> for T {
/// ~~~
///
#[inline(always)]
fn rem(&self, other: &T) -> T { *self % *other }
fn rem(&self, other: &$T) -> $T { *self % *other }
}
#[cfg(not(test))]
impl Neg<T> for T {
impl Neg<$T> for $T {
#[inline(always)]
fn neg(&self) -> T { -*self }
fn neg(&self) -> $T { -*self }
}
impl Signed for T {
impl Signed for $T {
/// Computes the absolute value
#[inline(always)]
fn abs(&self) -> T {
fn abs(&self) -> $T {
if self.is_negative() { -*self } else { *self }
}
@ -278,7 +273,7 @@ impl Signed for T {
/// equal to `other`, otherwise the difference between`self` and `other` is returned.
///
#[inline(always)]
fn abs_sub(&self, other: &T) -> T {
fn abs_sub(&self, other: &$T) -> $T {
if *self <= *other { 0 } else { *self - *other }
}
@ -290,7 +285,7 @@ impl Signed for T {
/// - `-1` if the number is negative
///
#[inline(always)]
fn signum(&self) -> T {
fn signum(&self) -> $T {
match *self {
n if n > 0 => 1,
0 => 0,
@ -307,7 +302,7 @@ impl Signed for T {
fn is_negative(&self) -> bool { *self < 0 }
}
impl Integer for T {
impl Integer for $T {
///
/// Floored integer division
///
@ -326,7 +321,7 @@ impl Integer for T {
/// ~~~
///
#[inline(always)]
fn div_floor(&self, other: &T) -> T {
fn div_floor(&self, other: &$T) -> $T {
// Algorithm from [Daan Leijen. _Division and Modulus for Computer Scientists_,
// December 2001](http://research.microsoft.com/pubs/151917/divmodnote-letter.pdf)
match self.div_rem(other) {
@ -358,7 +353,7 @@ impl Integer for T {
/// ~~~
///
#[inline(always)]
fn mod_floor(&self, other: &T) -> T {
fn mod_floor(&self, other: &$T) -> $T {
// Algorithm from [Daan Leijen. _Division and Modulus for Computer Scientists_,
// December 2001](http://research.microsoft.com/pubs/151917/divmodnote-letter.pdf)
match *self % *other {
@ -370,7 +365,7 @@ impl Integer for T {
/// Calculates `div_floor` and `mod_floor` simultaneously
#[inline(always)]
fn div_mod_floor(&self, other: &T) -> (T,T) {
fn div_mod_floor(&self, other: &$T) -> ($T,$T) {
// Algorithm from [Daan Leijen. _Division and Modulus for Computer Scientists_,
// December 2001](http://research.microsoft.com/pubs/151917/divmodnote-letter.pdf)
match self.div_rem(other) {
@ -382,7 +377,7 @@ impl Integer for T {
/// Calculates `div` (`\`) and `rem` (`%`) simultaneously
#[inline(always)]
fn div_rem(&self, other: &T) -> (T,T) {
fn div_rem(&self, other: &$T) -> ($T,$T) {
(*self / *other, *self % *other)
}
@ -392,7 +387,7 @@ impl Integer for T {
/// The result is always positive
///
#[inline(always)]
fn gcd(&self, other: &T) -> T {
fn gcd(&self, other: &$T) -> $T {
// Use Euclid's algorithm
let mut m = *self, n = *other;
while m != 0 {
@ -407,13 +402,13 @@ impl Integer for T {
/// Calculates the Lowest Common Multiple (LCM) of the number and `other`
///
#[inline(always)]
fn lcm(&self, other: &T) -> T {
fn lcm(&self, other: &$T) -> $T {
((*self * *other) / self.gcd(other)).abs() // should not have to recaluculate abs
}
/// Returns `true` if the number can be divided by `other` without leaving a remainder
#[inline(always)]
fn is_multiple_of(&self, other: &T) -> bool { *self % *other == 0 }
fn is_multiple_of(&self, other: &$T) -> bool { *self % *other == 0 }
/// Returns `true` if the number is divisible by `2`
#[inline(always)]
@ -424,87 +419,95 @@ impl Integer for T {
fn is_odd(&self) -> bool { !self.is_even() }
}
impl Bitwise for T {}
impl Bitwise for $T {}
#[cfg(not(test))]
impl BitOr<T,T> for T {
impl BitOr<$T,$T> for $T {
#[inline(always)]
fn bitor(&self, other: &T) -> T { *self | *other }
fn bitor(&self, other: &$T) -> $T { *self | *other }
}
#[cfg(not(test))]
impl BitAnd<T,T> for T {
impl BitAnd<$T,$T> for $T {
#[inline(always)]
fn bitand(&self, other: &T) -> T { *self & *other }
fn bitand(&self, other: &$T) -> $T { *self & *other }
}
#[cfg(not(test))]
impl BitXor<T,T> for T {
impl BitXor<$T,$T> for $T {
#[inline(always)]
fn bitxor(&self, other: &T) -> T { *self ^ *other }
fn bitxor(&self, other: &$T) -> $T { *self ^ *other }
}
#[cfg(not(test))]
impl Shl<T,T> for T {
impl Shl<$T,$T> for $T {
#[inline(always)]
fn shl(&self, other: &T) -> T { *self << *other }
fn shl(&self, other: &$T) -> $T { *self << *other }
}
#[cfg(not(test))]
impl Shr<T,T> for T {
impl Shr<$T,$T> for $T {
#[inline(always)]
fn shr(&self, other: &T) -> T { *self >> *other }
fn shr(&self, other: &$T) -> $T { *self >> *other }
}
#[cfg(not(test))]
impl Not<T> for T {
impl Not<$T> for $T {
#[inline(always)]
fn not(&self) -> T { !*self }
fn not(&self) -> $T { !*self }
}
impl Bounded for T {
impl Bounded for $T {
#[inline(always)]
fn min_value() -> T { min_value }
fn min_value() -> $T { min_value }
#[inline(always)]
fn max_value() -> T { max_value }
fn max_value() -> $T { max_value }
}
impl Int for T {}
impl Int for $T {}
impl Primitive for $T {
#[inline(always)]
fn bits() -> uint { bits }
#[inline(always)]
fn bytes() -> uint { bits / 8 }
}
// String conversion functions and impl str -> num
/// Parse a string as a number in base 10.
#[inline(always)]
pub fn from_str(s: &str) -> Option<T> {
pub fn from_str(s: &str) -> Option<$T> {
strconv::from_str_common(s, 10u, true, false, false,
strconv::ExpNone, false, false)
}
/// Parse a string as a number in the given base.
#[inline(always)]
pub fn from_str_radix(s: &str, radix: uint) -> Option<T> {
pub fn from_str_radix(s: &str, radix: uint) -> Option<$T> {
strconv::from_str_common(s, radix, true, false, false,
strconv::ExpNone, false, false)
}
/// Parse a byte slice as a number in the given base.
#[inline(always)]
pub fn parse_bytes(buf: &[u8], radix: uint) -> Option<T> {
pub fn parse_bytes(buf: &[u8], radix: uint) -> Option<$T> {
strconv::from_str_bytes_common(buf, radix, true, false, false,
strconv::ExpNone, false, false)
}
impl FromStr for T {
impl FromStr for $T {
#[inline(always)]
fn from_str(s: &str) -> Option<T> {
fn from_str(s: &str) -> Option<$T> {
from_str(s)
}
}
impl FromStrRadix for T {
impl FromStrRadix for $T {
#[inline(always)]
fn from_str_radix(s: &str, radix: uint) -> Option<T> {
fn from_str_radix(s: &str, radix: uint) -> Option<$T> {
from_str_radix(s, radix)
}
}
@ -513,7 +516,7 @@ impl FromStrRadix for T {
/// Convert to a string as a byte slice in a given base.
#[inline(always)]
pub fn to_str_bytes<U>(n: T, radix: uint, f: &fn(v: &[u8]) -> U) -> U {
pub fn to_str_bytes<U>(n: $T, radix: uint, f: &fn(v: &[u8]) -> U) -> U {
let (buf, _) = strconv::to_str_bytes_common(&n, radix, false,
strconv::SignNeg, strconv::DigAll);
f(buf)
@ -521,7 +524,7 @@ pub fn to_str_bytes<U>(n: T, radix: uint, f: &fn(v: &[u8]) -> U) -> U {
/// Convert to a string in base 10.
#[inline(always)]
pub fn to_str(num: T) -> ~str {
pub fn to_str(num: $T) -> ~str {
let (buf, _) = strconv::to_str_common(&num, 10u, false,
strconv::SignNeg, strconv::DigAll);
buf
@ -529,20 +532,20 @@ pub fn to_str(num: T) -> ~str {
/// Convert to a string in a given base.
#[inline(always)]
pub fn to_str_radix(num: T, radix: uint) -> ~str {
pub fn to_str_radix(num: $T, radix: uint) -> ~str {
let (buf, _) = strconv::to_str_common(&num, radix, false,
strconv::SignNeg, strconv::DigAll);
buf
}
impl ToStr for T {
impl ToStr for $T {
#[inline(always)]
fn to_str(&self) -> ~str {
to_str(*self)
}
}
impl ToStrRadix for T {
impl ToStrRadix for $T {
#[inline(always)]
fn to_str_radix(&self, radix: uint) -> ~str {
to_str_radix(*self, radix)
@ -552,62 +555,61 @@ impl ToStrRadix for T {
#[cfg(test)]
mod tests {
use super::*;
use super::inst::T;
use prelude::*;
#[test]
fn test_num() {
num::test_num(10 as T, 2 as T);
num::test_num(10 as $T, 2 as $T);
}
#[test]
fn test_orderable() {
assert_eq!((1 as T).min(&(2 as T)), 1 as T);
assert_eq!((2 as T).min(&(1 as T)), 1 as T);
assert_eq!((1 as T).max(&(2 as T)), 2 as T);
assert_eq!((2 as T).max(&(1 as T)), 2 as T);
assert_eq!((1 as T).clamp(&(2 as T), &(4 as T)), 2 as T);
assert_eq!((8 as T).clamp(&(2 as T), &(4 as T)), 4 as T);
assert_eq!((3 as T).clamp(&(2 as T), &(4 as T)), 3 as T);
assert_eq!((1 as $T).min(&(2 as $T)), 1 as $T);
assert_eq!((2 as $T).min(&(1 as $T)), 1 as $T);
assert_eq!((1 as $T).max(&(2 as $T)), 2 as $T);
assert_eq!((2 as $T).max(&(1 as $T)), 2 as $T);
assert_eq!((1 as $T).clamp(&(2 as $T), &(4 as $T)), 2 as $T);
assert_eq!((8 as $T).clamp(&(2 as $T), &(4 as $T)), 4 as $T);
assert_eq!((3 as $T).clamp(&(2 as $T), &(4 as $T)), 3 as $T);
}
#[test]
pub fn test_abs() {
assert_eq!((1 as T).abs(), 1 as T);
assert_eq!((0 as T).abs(), 0 as T);
assert_eq!((-1 as T).abs(), 1 as T);
assert_eq!((1 as $T).abs(), 1 as $T);
assert_eq!((0 as $T).abs(), 0 as $T);
assert_eq!((-1 as $T).abs(), 1 as $T);
}
#[test]
fn test_abs_sub() {
assert_eq!((-1 as T).abs_sub(&(1 as T)), 0 as T);
assert_eq!((1 as T).abs_sub(&(1 as T)), 0 as T);
assert_eq!((1 as T).abs_sub(&(0 as T)), 1 as T);
assert_eq!((1 as T).abs_sub(&(-1 as T)), 2 as T);
assert_eq!((-1 as $T).abs_sub(&(1 as $T)), 0 as $T);
assert_eq!((1 as $T).abs_sub(&(1 as $T)), 0 as $T);
assert_eq!((1 as $T).abs_sub(&(0 as $T)), 1 as $T);
assert_eq!((1 as $T).abs_sub(&(-1 as $T)), 2 as $T);
}
#[test]
fn test_signum() {
assert_eq!((1 as T).signum(), 1 as T);
assert_eq!((0 as T).signum(), 0 as T);
assert_eq!((-0 as T).signum(), 0 as T);
assert_eq!((-1 as T).signum(), -1 as T);
assert_eq!((1 as $T).signum(), 1 as $T);
assert_eq!((0 as $T).signum(), 0 as $T);
assert_eq!((-0 as $T).signum(), 0 as $T);
assert_eq!((-1 as $T).signum(), -1 as $T);
}
#[test]
fn test_is_positive() {
assert!((1 as T).is_positive());
assert!(!(0 as T).is_positive());
assert!(!(-0 as T).is_positive());
assert!(!(-1 as T).is_positive());
assert!((1 as $T).is_positive());
assert!(!(0 as $T).is_positive());
assert!(!(-0 as $T).is_positive());
assert!(!(-1 as $T).is_positive());
}
#[test]
fn test_is_negative() {
assert!(!(1 as T).is_negative());
assert!(!(0 as T).is_negative());
assert!(!(-0 as T).is_negative());
assert!((-1 as T).is_negative());
assert!(!(1 as $T).is_negative());
assert!(!(0 as $T).is_negative());
assert!(!(-0 as $T).is_negative());
assert!((-1 as $T).is_negative());
}
///
@ -618,13 +620,13 @@ mod tests {
/// - `qr`: quotient and remainder
///
#[cfg(test)]
fn test_division_rule((n,d): (T,T), (q,r): (T,T)) {
fn test_division_rule((n,d): ($T,$T), (q,r): ($T,$T)) {
assert_eq!(d * q + r, n);
}
#[test]
fn test_div_rem() {
fn test_nd_dr(nd: (T,T), qr: (T,T)) {
fn test_nd_dr(nd: ($T,$T), qr: ($T,$T)) {
let (n,d) = nd;
let separate_div_rem = (n / d, n % d);
let combined_div_rem = n.div_rem(&d);
@ -649,7 +651,7 @@ mod tests {
#[test]
fn test_div_mod_floor() {
fn test_nd_dm(nd: (T,T), dm: (T,T)) {
fn test_nd_dm(nd: ($T,$T), dm: ($T,$T)) {
let (n,d) = nd;
let separate_div_mod_floor = (n.div_floor(&d), n.mod_floor(&d));
let combined_div_mod_floor = n.div_mod_floor(&d);
@ -674,135 +676,135 @@ mod tests {
#[test]
fn test_gcd() {
assert_eq!((10 as T).gcd(&2), 2 as T);
assert_eq!((10 as T).gcd(&3), 1 as T);
assert_eq!((0 as T).gcd(&3), 3 as T);
assert_eq!((3 as T).gcd(&3), 3 as T);
assert_eq!((56 as T).gcd(&42), 14 as T);
assert_eq!((3 as T).gcd(&-3), 3 as T);
assert_eq!((-6 as T).gcd(&3), 3 as T);
assert_eq!((-4 as T).gcd(&-2), 2 as T);
assert_eq!((10 as $T).gcd(&2), 2 as $T);
assert_eq!((10 as $T).gcd(&3), 1 as $T);
assert_eq!((0 as $T).gcd(&3), 3 as $T);
assert_eq!((3 as $T).gcd(&3), 3 as $T);
assert_eq!((56 as $T).gcd(&42), 14 as $T);
assert_eq!((3 as $T).gcd(&-3), 3 as $T);
assert_eq!((-6 as $T).gcd(&3), 3 as $T);
assert_eq!((-4 as $T).gcd(&-2), 2 as $T);
}
#[test]
fn test_lcm() {
assert_eq!((1 as T).lcm(&0), 0 as T);
assert_eq!((0 as T).lcm(&1), 0 as T);
assert_eq!((1 as T).lcm(&1), 1 as T);
assert_eq!((-1 as T).lcm(&1), 1 as T);
assert_eq!((1 as T).lcm(&-1), 1 as T);
assert_eq!((-1 as T).lcm(&-1), 1 as T);
assert_eq!((8 as T).lcm(&9), 72 as T);
assert_eq!((11 as T).lcm(&5), 55 as T);
assert_eq!((1 as $T).lcm(&0), 0 as $T);
assert_eq!((0 as $T).lcm(&1), 0 as $T);
assert_eq!((1 as $T).lcm(&1), 1 as $T);
assert_eq!((-1 as $T).lcm(&1), 1 as $T);
assert_eq!((1 as $T).lcm(&-1), 1 as $T);
assert_eq!((-1 as $T).lcm(&-1), 1 as $T);
assert_eq!((8 as $T).lcm(&9), 72 as $T);
assert_eq!((11 as $T).lcm(&5), 55 as $T);
}
#[test]
fn test_bitwise() {
assert_eq!(0b1110 as T, (0b1100 as T).bitor(&(0b1010 as T)));
assert_eq!(0b1000 as T, (0b1100 as T).bitand(&(0b1010 as T)));
assert_eq!(0b0110 as T, (0b1100 as T).bitxor(&(0b1010 as T)));
assert_eq!(0b1110 as T, (0b0111 as T).shl(&(1 as T)));
assert_eq!(0b0111 as T, (0b1110 as T).shr(&(1 as T)));
assert_eq!(-(0b11 as T) - (1 as T), (0b11 as T).not());
assert_eq!(0b1110 as $T, (0b1100 as $T).bitor(&(0b1010 as $T)));
assert_eq!(0b1000 as $T, (0b1100 as $T).bitand(&(0b1010 as $T)));
assert_eq!(0b0110 as $T, (0b1100 as $T).bitxor(&(0b1010 as $T)));
assert_eq!(0b1110 as $T, (0b0111 as $T).shl(&(1 as $T)));
assert_eq!(0b0111 as $T, (0b1110 as $T).shr(&(1 as $T)));
assert_eq!(-(0b11 as $T) - (1 as $T), (0b11 as $T).not());
}
#[test]
fn test_multiple_of() {
assert!((6 as T).is_multiple_of(&(6 as T)));
assert!((6 as T).is_multiple_of(&(3 as T)));
assert!((6 as T).is_multiple_of(&(1 as T)));
assert!((-8 as T).is_multiple_of(&(4 as T)));
assert!((8 as T).is_multiple_of(&(-1 as T)));
assert!((-8 as T).is_multiple_of(&(-2 as T)));
assert!((6 as $T).is_multiple_of(&(6 as $T)));
assert!((6 as $T).is_multiple_of(&(3 as $T)));
assert!((6 as $T).is_multiple_of(&(1 as $T)));
assert!((-8 as $T).is_multiple_of(&(4 as $T)));
assert!((8 as $T).is_multiple_of(&(-1 as $T)));
assert!((-8 as $T).is_multiple_of(&(-2 as $T)));
}
#[test]
fn test_even() {
assert_eq!((-4 as T).is_even(), true);
assert_eq!((-3 as T).is_even(), false);
assert_eq!((-2 as T).is_even(), true);
assert_eq!((-1 as T).is_even(), false);
assert_eq!((0 as T).is_even(), true);
assert_eq!((1 as T).is_even(), false);
assert_eq!((2 as T).is_even(), true);
assert_eq!((3 as T).is_even(), false);
assert_eq!((4 as T).is_even(), true);
assert_eq!((-4 as $T).is_even(), true);
assert_eq!((-3 as $T).is_even(), false);
assert_eq!((-2 as $T).is_even(), true);
assert_eq!((-1 as $T).is_even(), false);
assert_eq!((0 as $T).is_even(), true);
assert_eq!((1 as $T).is_even(), false);
assert_eq!((2 as $T).is_even(), true);
assert_eq!((3 as $T).is_even(), false);
assert_eq!((4 as $T).is_even(), true);
}
#[test]
fn test_odd() {
assert_eq!((-4 as T).is_odd(), false);
assert_eq!((-3 as T).is_odd(), true);
assert_eq!((-2 as T).is_odd(), false);
assert_eq!((-1 as T).is_odd(), true);
assert_eq!((0 as T).is_odd(), false);
assert_eq!((1 as T).is_odd(), true);
assert_eq!((2 as T).is_odd(), false);
assert_eq!((3 as T).is_odd(), true);
assert_eq!((4 as T).is_odd(), false);
assert_eq!((-4 as $T).is_odd(), false);
assert_eq!((-3 as $T).is_odd(), true);
assert_eq!((-2 as $T).is_odd(), false);
assert_eq!((-1 as $T).is_odd(), true);
assert_eq!((0 as $T).is_odd(), false);
assert_eq!((1 as $T).is_odd(), true);
assert_eq!((2 as $T).is_odd(), false);
assert_eq!((3 as $T).is_odd(), true);
assert_eq!((4 as $T).is_odd(), false);
}
#[test]
fn test_bitcount() {
assert_eq!((0b010101 as T).population_count(), 3);
assert_eq!((0b010101 as $T).population_count(), 3);
}
#[test]
fn test_primitive() {
assert_eq!(Primitive::bits::<T>(), sys::size_of::<T>() * 8);
assert_eq!(Primitive::bytes::<T>(), sys::size_of::<T>());
assert_eq!(Primitive::bits::<$T>(), sys::size_of::<$T>() * 8);
assert_eq!(Primitive::bytes::<$T>(), sys::size_of::<$T>());
}
#[test]
fn test_from_str() {
assert_eq!(from_str("0"), Some(0 as T));
assert_eq!(from_str("3"), Some(3 as T));
assert_eq!(from_str("10"), Some(10 as T));
assert_eq!(i32::from_str("123456789"), Some(123456789 as i32));
assert_eq!(from_str("00100"), Some(100 as T));
assert_eq!(from_str(~"0"), Some(0 as $T));
assert_eq!(from_str(~"3"), Some(3 as $T));
assert_eq!(from_str(~"10"), Some(10 as $T));
assert_eq!(i32::from_str(~"123456789"), Some(123456789 as i32));
assert_eq!(from_str(~"00100"), Some(100 as $T));
assert_eq!(from_str("-1"), Some(-1 as T));
assert_eq!(from_str("-3"), Some(-3 as T));
assert_eq!(from_str("-10"), Some(-10 as T));
assert_eq!(i32::from_str("-123456789"), Some(-123456789 as i32));
assert_eq!(from_str("-00100"), Some(-100 as T));
assert_eq!(from_str(~"-1"), Some(-1 as $T));
assert_eq!(from_str(~"-3"), Some(-3 as $T));
assert_eq!(from_str(~"-10"), Some(-10 as $T));
assert_eq!(i32::from_str(~"-123456789"), Some(-123456789 as i32));
assert_eq!(from_str(~"-00100"), Some(-100 as $T));
assert!(from_str(" ").is_none());
assert!(from_str("x").is_none());
assert!(from_str(~" ").is_none());
assert!(from_str(~"x").is_none());
}
#[test]
fn test_parse_bytes() {
use str::to_bytes;
assert_eq!(parse_bytes(to_bytes("123"), 10u), Some(123 as T));
assert_eq!(parse_bytes(to_bytes("1001"), 2u), Some(9 as T));
assert_eq!(parse_bytes(to_bytes("123"), 8u), Some(83 as T));
assert_eq!(i32::parse_bytes(to_bytes("123"), 16u), Some(291 as i32));
assert_eq!(i32::parse_bytes(to_bytes("ffff"), 16u), Some(65535 as i32));
assert_eq!(i32::parse_bytes(to_bytes("FFFF"), 16u), Some(65535 as i32));
assert_eq!(parse_bytes(to_bytes("z"), 36u), Some(35 as T));
assert_eq!(parse_bytes(to_bytes("Z"), 36u), Some(35 as T));
assert_eq!(parse_bytes(to_bytes(~"123"), 10u), Some(123 as $T));
assert_eq!(parse_bytes(to_bytes(~"1001"), 2u), Some(9 as $T));
assert_eq!(parse_bytes(to_bytes(~"123"), 8u), Some(83 as $T));
assert_eq!(i32::parse_bytes(to_bytes(~"123"), 16u), Some(291 as i32));
assert_eq!(i32::parse_bytes(to_bytes(~"ffff"), 16u), Some(65535 as i32));
assert_eq!(i32::parse_bytes(to_bytes(~"FFFF"), 16u), Some(65535 as i32));
assert_eq!(parse_bytes(to_bytes(~"z"), 36u), Some(35 as $T));
assert_eq!(parse_bytes(to_bytes(~"Z"), 36u), Some(35 as $T));
assert_eq!(parse_bytes(to_bytes("-123"), 10u), Some(-123 as T));
assert_eq!(parse_bytes(to_bytes("-1001"), 2u), Some(-9 as T));
assert_eq!(parse_bytes(to_bytes("-123"), 8u), Some(-83 as T));
assert_eq!(i32::parse_bytes(to_bytes("-123"), 16u), Some(-291 as i32));
assert_eq!(i32::parse_bytes(to_bytes("-ffff"), 16u), Some(-65535 as i32));
assert_eq!(i32::parse_bytes(to_bytes("-FFFF"), 16u), Some(-65535 as i32));
assert_eq!(parse_bytes(to_bytes("-z"), 36u), Some(-35 as T));
assert_eq!(parse_bytes(to_bytes("-Z"), 36u), Some(-35 as T));
assert_eq!(parse_bytes(to_bytes(~"-123"), 10u), Some(-123 as $T));
assert_eq!(parse_bytes(to_bytes(~"-1001"), 2u), Some(-9 as $T));
assert_eq!(parse_bytes(to_bytes(~"-123"), 8u), Some(-83 as $T));
assert_eq!(i32::parse_bytes(to_bytes(~"-123"), 16u), Some(-291 as i32));
assert_eq!(i32::parse_bytes(to_bytes(~"-ffff"), 16u), Some(-65535 as i32));
assert_eq!(i32::parse_bytes(to_bytes(~"-FFFF"), 16u), Some(-65535 as i32));
assert_eq!(parse_bytes(to_bytes(~"-z"), 36u), Some(-35 as $T));
assert_eq!(parse_bytes(to_bytes(~"-Z"), 36u), Some(-35 as $T));
assert!(parse_bytes(to_bytes("Z"), 35u).is_none());
assert!(parse_bytes(to_bytes("-9"), 2u).is_none());
assert!(parse_bytes(to_bytes(~"Z"), 35u).is_none());
assert!(parse_bytes(to_bytes(~"-9"), 2u).is_none());
}
#[test]
fn test_to_str() {
assert_eq!(to_str_radix(0 as T, 10u), ~"0");
assert_eq!(to_str_radix(1 as T, 10u), ~"1");
assert_eq!(to_str_radix(-1 as T, 10u), ~"-1");
assert_eq!(to_str_radix(127 as T, 16u), ~"7f");
assert_eq!(to_str_radix(100 as T, 10u), ~"100");
assert_eq!(to_str_radix(0 as $T, 10u), ~"0");
assert_eq!(to_str_radix(1 as $T, 10u), ~"1");
assert_eq!(to_str_radix(-1 as $T, 10u), ~"-1");
assert_eq!(to_str_radix(127 as $T, 16u), ~"7f");
assert_eq!(to_str_radix(100 as $T, 10u), ~"100");
}
@ -836,36 +838,36 @@ mod tests {
#[test]
fn test_int_from_str_overflow() {
let mut i8_val: i8 = 127_i8;
assert_eq!(i8::from_str("127"), Some(i8_val));
assert!(i8::from_str("128").is_none());
assert_eq!(i8::from_str(~"127"), Some(i8_val));
assert!(i8::from_str(~"128").is_none());
i8_val += 1 as i8;
assert_eq!(i8::from_str("-128"), Some(i8_val));
assert!(i8::from_str("-129").is_none());
assert_eq!(i8::from_str(~"-128"), Some(i8_val));
assert!(i8::from_str(~"-129").is_none());
let mut i16_val: i16 = 32_767_i16;
assert_eq!(i16::from_str("32767"), Some(i16_val));
assert!(i16::from_str("32768").is_none());
assert_eq!(i16::from_str(~"32767"), Some(i16_val));
assert!(i16::from_str(~"32768").is_none());
i16_val += 1 as i16;
assert_eq!(i16::from_str("-32768"), Some(i16_val));
assert!(i16::from_str("-32769").is_none());
assert_eq!(i16::from_str(~"-32768"), Some(i16_val));
assert!(i16::from_str(~"-32769").is_none());
let mut i32_val: i32 = 2_147_483_647_i32;
assert_eq!(i32::from_str("2147483647"), Some(i32_val));
assert!(i32::from_str("2147483648").is_none());
assert_eq!(i32::from_str(~"2147483647"), Some(i32_val));
assert!(i32::from_str(~"2147483648").is_none());
i32_val += 1 as i32;
assert_eq!(i32::from_str("-2147483648"), Some(i32_val));
assert!(i32::from_str("-2147483649").is_none());
assert_eq!(i32::from_str(~"-2147483648"), Some(i32_val));
assert!(i32::from_str(~"-2147483649").is_none());
let mut i64_val: i64 = 9_223_372_036_854_775_807_i64;
assert_eq!(i64::from_str("9223372036854775807"), Some(i64_val));
assert!(i64::from_str("9223372036854775808").is_none());
assert_eq!(i64::from_str(~"9223372036854775807"), Some(i64_val));
assert!(i64::from_str(~"9223372036854775808").is_none());
i64_val += 1 as i64;
assert_eq!(i64::from_str("-9223372036854775808"), Some(i64_val));
assert!(i64::from_str("-9223372036854775809").is_none());
assert_eq!(i64::from_str(~"-9223372036854775808"), Some(i64_val));
assert!(i64::from_str(~"-9223372036854775809").is_none());
}
#[test]
@ -907,16 +909,16 @@ mod tests {
// None of the `fail`s should execute.
for range(10,0) |_i| {
fail!("unreachable");
fail!(~"unreachable");
}
for range_rev(0,10) |_i| {
fail!("unreachable");
fail!(~"unreachable");
}
for range_step(10,0,1) |_i| {
fail!("unreachable");
fail!(~"unreachable");
}
for range_step(0,10,-1) |_i| {
fail!("unreachable");
fail!(~"unreachable");
}
}
@ -927,3 +929,5 @@ mod tests {
for range_step(0,10,0) |_i| {}
}
}
}))

14
src/libstd/num/u16.rs Normal file
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@ -0,0 +1,14 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u16`
pub use self::generated::*;
uint_module!(u16, i16, 16)

14
src/libstd/num/u32.rs Normal file
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@ -0,0 +1,14 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u32`
pub use self::generated::*;
uint_module!(u32, i32, 32)

14
src/libstd/num/u64.rs Normal file
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@ -0,0 +1,14 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u64`
pub use self::generated::*;
uint_module!(u64, i64, 64)

14
src/libstd/num/u8.rs Normal file
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@ -0,0 +1,14 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u8`
pub use self::generated::*;
uint_module!(u8, i8, 8)

43
src/libstd/num/uint-template/u16.rs
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@ -1,43 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u16`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = u16;
#[allow(non_camel_case_types)]
pub type T_SIGNED = i16;
pub static bits: uint = 16;
impl Primitive for u16 {
#[inline(always)]
fn bits() -> uint { 16 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<u16>() / 8 }
}
impl BitCount for u16 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> u16 { unsafe { intrinsics::ctpop16(*self as i16) as u16 } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> u16 { unsafe { intrinsics::ctlz16(*self as i16) as u16 } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> u16 { unsafe { intrinsics::cttz16(*self as i16) as u16 } }
}
}

43
src/libstd/num/uint-template/u32.rs
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@ -1,43 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u32`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = u32;
#[allow(non_camel_case_types)]
pub type T_SIGNED = i32;
pub static bits: uint = 32;
impl Primitive for u32 {
#[inline(always)]
fn bits() -> uint { 32 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<u32>() / 8 }
}
impl BitCount for u32 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> u32 { unsafe { intrinsics::ctpop32(*self as i32) as u32 } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlp` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> u32 { unsafe { intrinsics::ctlz32(*self as i32) as u32 } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttp` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> u32 { unsafe { intrinsics::cttz32(*self as i32) as u32 } }
}
}

43
src/libstd/num/uint-template/u64.rs
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@ -1,43 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u64`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = u64;
#[allow(non_camel_case_types)]
pub type T_SIGNED = i64;
pub static bits: uint = 64;
impl Primitive for u64 {
#[inline(always)]
fn bits() -> uint { 64 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<u64>() / 8 }
}
impl BitCount for u64 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> u64 { unsafe { intrinsics::ctpop64(*self as i64) as u64 } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> u64 { unsafe { intrinsics::ctlz64(*self as i64) as u64 } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> u64 { unsafe { intrinsics::cttz64(*self as i64) as u64 } }
}
}

43
src/libstd/num/uint-template/u8.rs
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@ -1,43 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `u8`
mod inst {
use num::{Primitive, BitCount};
use unstable::intrinsics;
pub type T = u8;
#[allow(non_camel_case_types)]
pub type T_SIGNED = i8;
pub static bits: uint = 8;
impl Primitive for u8 {
#[inline(always)]
fn bits() -> uint { 8 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<u8>() / 8 }
}
impl BitCount for u8 {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> u8 { unsafe { intrinsics::ctpop8(*self as i8) as u8 } }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> u8 { unsafe { intrinsics::ctlz8(*self as i8) as u8 } }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> u8 { unsafe { intrinsics::cttz8(*self as i8) as u8 } }
}
}

256
src/libstd/num/uint-template/uint.rs
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@ -1,256 +0,0 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `uint`
pub use self::inst::{
div_ceil, div_round, div_floor, iterate,
next_power_of_two
};
pub mod inst {
use iter;
use num::{Primitive, BitCount};
use sys;
pub type T = uint;
#[allow(non_camel_case_types)]
pub type T_SIGNED = int;
#[cfg(target_arch = "x86")]
#[cfg(target_arch = "arm")]
#[cfg(target_arch = "mips")]
pub static bits: uint = 32;
#[cfg(target_arch = "x86_64")]
pub static bits: uint = 64;
impl Primitive for uint {
#[cfg(target_word_size = "32")]
#[inline(always)]
fn bits() -> uint { 32 }
#[cfg(target_word_size = "64")]
#[inline(always)]
fn bits() -> uint { 64 }
#[inline(always)]
fn bytes() -> uint { Primitive::bits::<uint>() / 8 }
}
#[cfg(target_word_size = "32")]
#[inline(always)]
impl BitCount for uint {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> uint { (*self as i32).population_count() as uint }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> uint { (*self as i32).leading_zeros() as uint }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> uint { (*self as i32).trailing_zeros() as uint }
}
#[cfg(target_word_size = "64")]
#[inline(always)]
impl BitCount for uint {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> uint { (*self as i64).population_count() as uint }
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> uint { (*self as i64).leading_zeros() as uint }
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> uint { (*self as i64).trailing_zeros() as uint }
}
///
/// Divide two numbers, return the result, rounded up.
///
/// # Arguments
///
/// * x - an integer
/// * y - an integer distinct from 0u
///
/// # Return value
///
/// The smallest integer `q` such that `x/y <= q`.
///
pub fn div_ceil(x: uint, y: uint) -> uint {
let div = x / y;
if x % y == 0u { div }
else { div + 1u }
}
///
/// Divide two numbers, return the result, rounded to the closest integer.
///
/// # Arguments
///
/// * x - an integer
/// * y - an integer distinct from 0u
///
/// # Return value
///
/// The integer `q` closest to `x/y`.
///
pub fn div_round(x: uint, y: uint) -> uint {
let div = x / y;
if x % y * 2u < y { div }
else { div + 1u }
}
///
/// Divide two numbers, return the result, rounded down.
///
/// Note: This is the same function as `div`.
///
/// # Arguments
///
/// * x - an integer
/// * y - an integer distinct from 0u
///
/// # Return value
///
/// The smallest integer `q` such that `x/y <= q`. This
/// is either `x/y` or `x/y + 1`.
///
pub fn div_floor(x: uint, y: uint) -> uint { return x / y; }
///
/// Iterate over the range [`lo`..`hi`), or stop when requested
///
/// # Arguments
///
/// * lo - The integer at which to start the loop (included)
/// * hi - The integer at which to stop the loop (excluded)
/// * it - A block to execute with each consecutive integer of the range.
/// Return `true` to continue, `false` to stop.
///
/// # Return value
///
/// `true` If execution proceeded correctly, `false` if it was interrupted,
/// that is if `it` returned `false` at any point.
///
pub fn iterate(lo: uint, hi: uint, it: &fn(uint) -> bool) -> bool {
let mut i = lo;
while i < hi {
if (!it(i)) { return false; }
i += 1u;
}
return true;
}
impl iter::Times for uint {
#[inline(always)]
///
/// A convenience form for basic iteration. Given a uint `x`,
/// `for x.times { ... }` executes the given block x times.
///
/// Equivalent to `for uint::range(0, x) |_| { ... }`.
///
/// Not defined on all integer types to permit unambiguous
/// use with integer literals of inferred integer-type as
/// the self-value (eg. `for 100.times { ... }`).
///
fn times(&self, it: &fn() -> bool) -> bool {
let mut i = *self;
while i > 0 {
if !it() { return false; }
i -= 1;
}
return true;
}
}
/// Returns the smallest power of 2 greater than or equal to `n`
#[inline(always)]
pub fn next_power_of_two(n: uint) -> uint {
let halfbits: uint = sys::size_of::<uint>() * 4u;
let mut tmp: uint = n - 1u;
let mut shift: uint = 1u;
while shift <= halfbits { tmp |= tmp >> shift; shift <<= 1u; }
return tmp + 1u;
}
#[test]
fn test_next_power_of_two() {
assert_eq!(next_power_of_two(0u), 0u);
assert_eq!(next_power_of_two(1u), 1u);
assert_eq!(next_power_of_two(2u), 2u);
assert_eq!(next_power_of_two(3u), 4u);
assert_eq!(next_power_of_two(4u), 4u);
assert_eq!(next_power_of_two(5u), 8u);
assert_eq!(next_power_of_two(6u), 8u);
assert_eq!(next_power_of_two(7u), 8u);
assert_eq!(next_power_of_two(8u), 8u);
assert_eq!(next_power_of_two(9u), 16u);
assert_eq!(next_power_of_two(10u), 16u);
assert_eq!(next_power_of_two(11u), 16u);
assert_eq!(next_power_of_two(12u), 16u);
assert_eq!(next_power_of_two(13u), 16u);
assert_eq!(next_power_of_two(14u), 16u);
assert_eq!(next_power_of_two(15u), 16u);
assert_eq!(next_power_of_two(16u), 16u);
assert_eq!(next_power_of_two(17u), 32u);
assert_eq!(next_power_of_two(18u), 32u);
assert_eq!(next_power_of_two(19u), 32u);
assert_eq!(next_power_of_two(20u), 32u);
assert_eq!(next_power_of_two(21u), 32u);
assert_eq!(next_power_of_two(22u), 32u);
assert_eq!(next_power_of_two(23u), 32u);
assert_eq!(next_power_of_two(24u), 32u);
assert_eq!(next_power_of_two(25u), 32u);
assert_eq!(next_power_of_two(26u), 32u);
assert_eq!(next_power_of_two(27u), 32u);
assert_eq!(next_power_of_two(28u), 32u);
assert_eq!(next_power_of_two(29u), 32u);
assert_eq!(next_power_of_two(30u), 32u);
assert_eq!(next_power_of_two(31u), 32u);
assert_eq!(next_power_of_two(32u), 32u);
assert_eq!(next_power_of_two(33u), 64u);
assert_eq!(next_power_of_two(34u), 64u);
assert_eq!(next_power_of_two(35u), 64u);
assert_eq!(next_power_of_two(36u), 64u);
assert_eq!(next_power_of_two(37u), 64u);
assert_eq!(next_power_of_two(38u), 64u);
assert_eq!(next_power_of_two(39u), 64u);
}
#[test]
fn test_overflows() {
use uint;
assert!((uint::max_value > 0u));
assert!((uint::min_value <= 0u));
assert_eq!(uint::min_value + uint::max_value + 1u, 0u);
}
#[test]
fn test_div() {
assert_eq!(div_floor(3u, 4u), 0u);
assert_eq!(div_ceil(3u, 4u), 1u);
assert_eq!(div_round(3u, 4u), 1u);
}
#[test]
pub fn test_times() {
use iter::Times;
let ten = 10 as uint;
let mut accum = 0;
for ten.times { accum += 1; }
assert_eq!(accum, 10);
}
}

195
src/libstd/num/uint.rs Normal file
View File

@ -0,0 +1,195 @@
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Operations and constants for `uint`
use iter;
use sys;
pub use self::generated::*;
uint_module!(uint, int, ::int::bits)
///
/// Divide two numbers, return the result, rounded up.
///
/// # Arguments
///
/// * x - an integer
/// * y - an integer distinct from 0u
///
/// # Return value
///
/// The smallest integer `q` such that `x/y <= q`.
///
pub fn div_ceil(x: uint, y: uint) -> uint {
let div = x / y;
if x % y == 0u { div }
else { div + 1u }
}
///
/// Divide two numbers, return the result, rounded to the closest integer.
///
/// # Arguments
///
/// * x - an integer
/// * y - an integer distinct from 0u
///
/// # Return value
///
/// The integer `q` closest to `x/y`.
///
pub fn div_round(x: uint, y: uint) -> uint {
let div = x / y;
if x % y * 2u < y { div }
else { div + 1u }
}
///
/// Divide two numbers, return the result, rounded down.
///
/// Note: This is the same function as `div`.
///
/// # Arguments
///
/// * x - an integer
/// * y - an integer distinct from 0u
///
/// # Return value
///
/// The smallest integer `q` such that `x/y <= q`. This
/// is either `x/y` or `x/y + 1`.
///
pub fn div_floor(x: uint, y: uint) -> uint { return x / y; }
///
/// Iterate over the range [`lo`..`hi`), or stop when requested
///
/// # Arguments
///
/// * lo - The integer at which to start the loop (included)
/// * hi - The integer at which to stop the loop (excluded)
/// * it - A block to execute with each consecutive integer of the range.
/// Return `true` to continue, `false` to stop.
///
/// # Return value
///
/// `true` If execution proceeded correctly, `false` if it was interrupted,
/// that is if `it` returned `false` at any point.
///
pub fn iterate(lo: uint, hi: uint, it: &fn(uint) -> bool) -> bool {
let mut i = lo;
while i < hi {
if (!it(i)) { return false; }
i += 1u;
}
return true;
}
impl iter::Times for uint {
#[inline(always)]
///
/// A convenience form for basic iteration. Given a uint `x`,
/// `for x.times { ... }` executes the given block x times.
///
/// Equivalent to `for uint::range(0, x) |_| { ... }`.
///
/// Not defined on all integer types to permit unambiguous
/// use with integer literals of inferred integer-type as
/// the self-value (eg. `for 100.times { ... }`).
///
fn times(&self, it: &fn() -> bool) -> bool {
let mut i = *self;
while i > 0 {
if !it() { return false; }
i -= 1;
}
return true;
}
}
/// Returns the smallest power of 2 greater than or equal to `n`
#[inline(always)]
pub fn next_power_of_two(n: uint) -> uint {
let halfbits: uint = sys::size_of::<uint>() * 4u;
let mut tmp: uint = n - 1u;
let mut shift: uint = 1u;
while shift <= halfbits { tmp |= tmp >> shift; shift <<= 1u; }
return tmp + 1u;
}
#[test]
fn test_next_power_of_two() {
assert!((next_power_of_two(0u) == 0u));
assert!((next_power_of_two(1u) == 1u));
assert!((next_power_of_two(2u) == 2u));
assert!((next_power_of_two(3u) == 4u));
assert!((next_power_of_two(4u) == 4u));
assert!((next_power_of_two(5u) == 8u));
assert!((next_power_of_two(6u) == 8u));
assert!((next_power_of_two(7u) == 8u));
assert!((next_power_of_two(8u) == 8u));
assert!((next_power_of_two(9u) == 16u));
assert!((next_power_of_two(10u) == 16u));
assert!((next_power_of_two(11u) == 16u));
assert!((next_power_of_two(12u) == 16u));
assert!((next_power_of_two(13u) == 16u));
assert!((next_power_of_two(14u) == 16u));
assert!((next_power_of_two(15u) == 16u));
assert!((next_power_of_two(16u) == 16u));
assert!((next_power_of_two(17u) == 32u));
assert!((next_power_of_two(18u) == 32u));
assert!((next_power_of_two(19u) == 32u));
assert!((next_power_of_two(20u) == 32u));
assert!((next_power_of_two(21u) == 32u));
assert!((next_power_of_two(22u) == 32u));
assert!((next_power_of_two(23u) == 32u));
assert!((next_power_of_two(24u) == 32u));
assert!((next_power_of_two(25u) == 32u));
assert!((next_power_of_two(26u) == 32u));
assert!((next_power_of_two(27u) == 32u));
assert!((next_power_of_two(28u) == 32u));
assert!((next_power_of_two(29u) == 32u));
assert!((next_power_of_two(30u) == 32u));
assert!((next_power_of_two(31u) == 32u));
assert!((next_power_of_two(32u) == 32u));
assert!((next_power_of_two(33u) == 64u));
assert!((next_power_of_two(34u) == 64u));
assert!((next_power_of_two(35u) == 64u));
assert!((next_power_of_two(36u) == 64u));
assert!((next_power_of_two(37u) == 64u));
assert!((next_power_of_two(38u) == 64u));
assert!((next_power_of_two(39u) == 64u));
}
#[test]
fn test_overflows() {
use uint;
assert!((uint::max_value > 0u));
assert!((uint::min_value <= 0u));
assert!((uint::min_value + uint::max_value + 1u == 0u));
}
#[test]
fn test_div() {
assert!((div_floor(3u, 4u) == 0u));
assert!((div_ceil(3u, 4u) == 1u));
assert!((div_round(3u, 4u) == 1u));
}
#[test]
pub fn test_times() {
use iter::Times;
let ten = 10 as uint;
let mut accum = 0;
for ten.times { accum += 1; }
assert!((accum == 10));
}

390
src/libstd/num/uint-template.rs → src/libstd/num/uint_macros.rs
View File

@ -8,53 +8,54 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use T = self::inst::T;
use T_SIGNED = self::inst::T_SIGNED;
// FIXME(#4375): this shouldn't have to be a nested module named 'generated'
#[macro_escape];
macro_rules! uint_module (($T:ty, $T_SIGNED:ty, $bits:expr) => (mod generated {
use num::BitCount;
use num::{ToStrRadix, FromStrRadix};
use num::{Zero, One, strconv};
use prelude::*;
pub use cmp::{min, max};
pub static bits : uint = inst::bits;
pub static bytes : uint = (inst::bits / 8);
pub static bits : uint = $bits;
pub static bytes : uint = ($bits / 8);
pub static min_value: T = 0 as T;
pub static max_value: T = 0 as T - 1 as T;
pub static min_value: $T = 0 as $T;
pub static max_value: $T = 0 as $T - 1 as $T;
#[inline(always)]
pub fn add(x: T, y: T) -> T { x + y }
pub fn add(x: $T, y: $T) -> $T { x + y }
#[inline(always)]
pub fn sub(x: T, y: T) -> T { x - y }
pub fn sub(x: $T, y: $T) -> $T { x - y }
#[inline(always)]
pub fn mul(x: T, y: T) -> T { x * y }
pub fn mul(x: $T, y: $T) -> $T { x * y }
#[inline(always)]
pub fn div(x: T, y: T) -> T { x / y }
pub fn div(x: $T, y: $T) -> $T { x / y }
#[inline(always)]
pub fn rem(x: T, y: T) -> T { x % y }
pub fn rem(x: $T, y: $T) -> $T { x % y }
#[inline(always)]
pub fn lt(x: T, y: T) -> bool { x < y }
pub fn lt(x: $T, y: $T) -> bool { x < y }
#[inline(always)]
pub fn le(x: T, y: T) -> bool { x <= y }
pub fn le(x: $T, y: $T) -> bool { x <= y }
#[inline(always)]
pub fn eq(x: T, y: T) -> bool { x == y }
pub fn eq(x: $T, y: $T) -> bool { x == y }
#[inline(always)]
pub fn ne(x: T, y: T) -> bool { x != y }
pub fn ne(x: $T, y: $T) -> bool { x != y }
#[inline(always)]
pub fn ge(x: T, y: T) -> bool { x >= y }
pub fn ge(x: $T, y: $T) -> bool { x >= y }
#[inline(always)]
pub fn gt(x: T, y: T) -> bool { x > y }
pub fn gt(x: $T, y: $T) -> bool { x > y }
#[inline(always)]
///
/// Iterate over the range [`start`,`start`+`step`..`stop`)
///
pub fn _range_step(start: T,
stop: T,
step: T_SIGNED,
it: &fn(T) -> bool) -> bool {
pub fn range_step(start: $T, stop: $T, step: $T_SIGNED, it: &fn($T) -> bool) -> bool {
let mut i = start;
if step == 0 {
fail!("range_step called with step == 0");
@ -63,78 +64,74 @@ pub fn _range_step(start: T,
while i < stop {
if !it(i) { return false; }
// avoiding overflow. break if i + step > max_value
if i > max_value - (step as T) { return true; }
i += step as T;
if i > max_value - (step as $T) { return true; }
i += step as $T;
}
} else {
while i > stop {
if !it(i) { return false; }
// avoiding underflow. break if i + step < min_value
if i < min_value + ((-step) as T) { return true; }
i -= -step as T;
if i < min_value + ((-step) as $T) { return true; }
i -= -step as $T;
}
}
return true;
}
pub fn range_step(start: T, stop: T, step: T_SIGNED, it: &fn(T) -> bool) -> bool {
_range_step(start, stop, step, it)
}
#[inline(always)]
/// Iterate over the range [`lo`..`hi`)
pub fn range(lo: T, hi: T, it: &fn(T) -> bool) -> bool {
range_step(lo, hi, 1 as T_SIGNED, it)
pub fn range(lo: $T, hi: $T, it: &fn($T) -> bool) -> bool {
range_step(lo, hi, 1 as $T_SIGNED, it)
}
#[inline(always)]
/// Iterate over the range [`hi`..`lo`)
pub fn range_rev(hi: T, lo: T, it: &fn(T) -> bool) -> bool {
range_step(hi, lo, -1 as T_SIGNED, it)
pub fn range_rev(hi: $T, lo: $T, it: &fn($T) -> bool) -> bool {
range_step(hi, lo, -1 as $T_SIGNED, it)
}
/// Computes the bitwise complement
#[inline(always)]
pub fn compl(i: T) -> T {
pub fn compl(i: $T) -> $T {
max_value ^ i
}
impl Num for T {}
impl Num for $T {}
#[cfg(not(test))]
impl Ord for T {
impl Ord for $T {
#[inline(always)]
fn lt(&self, other: &T) -> bool { (*self) < (*other) }
fn lt(&self, other: &$T) -> bool { (*self) < (*other) }
#[inline(always)]
fn le(&self, other: &T) -> bool { (*self) <= (*other) }
fn le(&self, other: &$T) -> bool { (*self) <= (*other) }
#[inline(always)]
fn ge(&self, other: &T) -> bool { (*self) >= (*other) }
fn ge(&self, other: &$T) -> bool { (*self) >= (*other) }
#[inline(always)]
fn gt(&self, other: &T) -> bool { (*self) > (*other) }
fn gt(&self, other: &$T) -> bool { (*self) > (*other) }
}
#[cfg(not(test))]
impl Eq for T {
impl Eq for $T {
#[inline(always)]
fn eq(&self, other: &T) -> bool { return (*self) == (*other); }
fn eq(&self, other: &$T) -> bool { return (*self) == (*other); }
#[inline(always)]
fn ne(&self, other: &T) -> bool { return (*self) != (*other); }
fn ne(&self, other: &$T) -> bool { return (*self) != (*other); }
}
impl Orderable for T {
impl Orderable for $T {
#[inline(always)]
fn min(&self, other: &T) -> T {
fn min(&self, other: &$T) -> $T {
if *self < *other { *self } else { *other }
}
#[inline(always)]
fn max(&self, other: &T) -> T {
fn max(&self, other: &$T) -> $T {
if *self > *other { *self } else { *other }
}
/// Returns the number constrained within the range `mn <= self <= mx`.
#[inline(always)]
fn clamp(&self, mn: &T, mx: &T) -> T {
fn clamp(&self, mn: &$T, mx: &$T) -> $T {
cond!(
(*self > *mx) { *mx }
(*self < *mn) { *mn }
@ -143,81 +140,81 @@ impl Orderable for T {
}
}
impl Zero for T {
impl Zero for $T {
#[inline(always)]
fn zero() -> T { 0 }
fn zero() -> $T { 0 }
#[inline(always)]
fn is_zero(&self) -> bool { *self == 0 }
}
impl One for T {
impl One for $T {
#[inline(always)]
fn one() -> T { 1 }
fn one() -> $T { 1 }
}
#[cfg(not(test))]
impl Add<T,T> for T {
impl Add<$T,$T> for $T {
#[inline(always)]
fn add(&self, other: &T) -> T { *self + *other }
fn add(&self, other: &$T) -> $T { *self + *other }
}
#[cfg(not(test))]
impl Sub<T,T> for T {
impl Sub<$T,$T> for $T {
#[inline(always)]
fn sub(&self, other: &T) -> T { *self - *other }
fn sub(&self, other: &$T) -> $T { *self - *other }
}
#[cfg(not(test))]
impl Mul<T,T> for T {
impl Mul<$T,$T> for $T {
#[inline(always)]
fn mul(&self, other: &T) -> T { *self * *other }
fn mul(&self, other: &$T) -> $T { *self * *other }
}
#[cfg(not(test))]
impl Div<T,T> for T {
impl Div<$T,$T> for $T {
#[inline(always)]
fn div(&self, other: &T) -> T { *self / *other }
fn div(&self, other: &$T) -> $T { *self / *other }
}
#[cfg(not(test))]
impl Rem<T,T> for T {
impl Rem<$T,$T> for $T {
#[inline(always)]
fn rem(&self, other: &T) -> T { *self % *other }
fn rem(&self, other: &$T) -> $T { *self % *other }
}
#[cfg(not(test))]
impl Neg<T> for T {
impl Neg<$T> for $T {
#[inline(always)]
fn neg(&self) -> T { -*self }
fn neg(&self) -> $T { -*self }
}
impl Unsigned for T {}
impl Unsigned for $T {}
impl Integer for T {
impl Integer for $T {
/// Calculates `div` (`\`) and `rem` (`%`) simultaneously
#[inline(always)]
fn div_rem(&self, other: &T) -> (T,T) {
fn div_rem(&self, other: &$T) -> ($T,$T) {
(*self / *other, *self % *other)
}
/// Unsigned integer division. Returns the same result as `div` (`/`).
#[inline(always)]
fn div_floor(&self, other: &T) -> T { *self / *other }
fn div_floor(&self, other: &$T) -> $T { *self / *other }
/// Unsigned integer modulo operation. Returns the same result as `rem` (`%`).
#[inline(always)]
fn mod_floor(&self, other: &T) -> T { *self / *other }
fn mod_floor(&self, other: &$T) -> $T { *self / *other }
/// Calculates `div_floor` and `modulo_floor` simultaneously
#[inline(always)]
fn div_mod_floor(&self, other: &T) -> (T,T) {
fn div_mod_floor(&self, other: &$T) -> ($T,$T) {
(*self / *other, *self % *other)
}
/// Calculates the Greatest Common Divisor (GCD) of the number and `other`
#[inline(always)]
fn gcd(&self, other: &T) -> T {
fn gcd(&self, other: &$T) -> $T {
// Use Euclid's algorithm
let mut m = *self, n = *other;
while m != 0 {
@ -230,13 +227,13 @@ impl Integer for T {
/// Calculates the Lowest Common Multiple (LCM) of the number and `other`
#[inline(always)]
fn lcm(&self, other: &T) -> T {
fn lcm(&self, other: &$T) -> $T {
(*self * *other) / self.gcd(other)
}
/// Returns `true` if the number can be divided by `other` without leaving a remainder
#[inline(always)]
fn is_multiple_of(&self, other: &T) -> bool { *self % *other == 0 }
fn is_multiple_of(&self, other: &$T) -> bool { *self % *other == 0 }
/// Returns `true` if the number is divisible by `2`
#[inline(always)]
@ -247,87 +244,87 @@ impl Integer for T {
fn is_odd(&self) -> bool { !self.is_even() }
}
impl Bitwise for T {}
impl Bitwise for $T {}
#[cfg(not(test))]
impl BitOr<T,T> for T {
impl BitOr<$T,$T> for $T {
#[inline(always)]
fn bitor(&self, other: &T) -> T { *self | *other }
fn bitor(&self, other: &$T) -> $T { *self | *other }
}
#[cfg(not(test))]
impl BitAnd<T,T> for T {
impl BitAnd<$T,$T> for $T {
#[inline(always)]
fn bitand(&self, other: &T) -> T { *self & *other }
fn bitand(&self, other: &$T) -> $T { *self & *other }
}
#[cfg(not(test))]
impl BitXor<T,T> for T {
impl BitXor<$T,$T> for $T {
#[inline(always)]
fn bitxor(&self, other: &T) -> T { *self ^ *other }
fn bitxor(&self, other: &$T) -> $T { *self ^ *other }
}
#[cfg(not(test))]
impl Shl<T,T> for T {
impl Shl<$T,$T> for $T {
#[inline(always)]
fn shl(&self, other: &T) -> T { *self << *other }
fn shl(&self, other: &$T) -> $T { *self << *other }
}
#[cfg(not(test))]
impl Shr<T,T> for T {
impl Shr<$T,$T> for $T {
#[inline(always)]
fn shr(&self, other: &T) -> T { *self >> *other }
fn shr(&self, other: &$T) -> $T { *self >> *other }
}
#[cfg(not(test))]
impl Not<T> for T {
impl Not<$T> for $T {
#[inline(always)]
fn not(&self) -> T { !*self }
fn not(&self) -> $T { !*self }
}
impl Bounded for T {
impl Bounded for $T {
#[inline(always)]
fn min_value() -> T { min_value }
fn min_value() -> $T { min_value }
#[inline(always)]
fn max_value() -> T { max_value }
fn max_value() -> $T { max_value }
}
impl Int for T {}
impl Int for $T {}
// String conversion functions and impl str -> num
/// Parse a string as a number in base 10.
#[inline(always)]
pub fn from_str(s: &str) -> Option<T> {
pub fn from_str(s: &str) -> Option<$T> {
strconv::from_str_common(s, 10u, false, false, false,
strconv::ExpNone, false, false)
}
/// Parse a string as a number in the given base.
#[inline(always)]
pub fn from_str_radix(s: &str, radix: uint) -> Option<T> {
pub fn from_str_radix(s: &str, radix: uint) -> Option<$T> {
strconv::from_str_common(s, radix, false, false, false,
strconv::ExpNone, false, false)
}
/// Parse a byte slice as a number in the given base.
#[inline(always)]
pub fn parse_bytes(buf: &[u8], radix: uint) -> Option<T> {
pub fn parse_bytes(buf: &[u8], radix: uint) -> Option<$T> {
strconv::from_str_bytes_common(buf, radix, false, false, false,
strconv::ExpNone, false, false)
}
impl FromStr for T {
impl FromStr for $T {
#[inline(always)]
fn from_str(s: &str) -> Option<T> {
fn from_str(s: &str) -> Option<$T> {
from_str(s)
}
}
impl FromStrRadix for T {
impl FromStrRadix for $T {
#[inline(always)]
fn from_str_radix(s: &str, radix: uint) -> Option<T> {
fn from_str_radix(s: &str, radix: uint) -> Option<$T> {
from_str_radix(s, radix)
}
}
@ -336,7 +333,7 @@ impl FromStrRadix for T {
/// Convert to a string as a byte slice in a given base.
#[inline(always)]
pub fn to_str_bytes<U>(n: T, radix: uint, f: &fn(v: &[u8]) -> U) -> U {
pub fn to_str_bytes<U>(n: $T, radix: uint, f: &fn(v: &[u8]) -> U) -> U {
let (buf, _) = strconv::to_str_bytes_common(&n, radix, false,
strconv::SignNeg, strconv::DigAll);
f(buf)
@ -344,7 +341,7 @@ pub fn to_str_bytes<U>(n: T, radix: uint, f: &fn(v: &[u8]) -> U) -> U {
/// Convert to a string in base 10.
#[inline(always)]
pub fn to_str(num: T) -> ~str {
pub fn to_str(num: $T) -> ~str {
let (buf, _) = strconv::to_str_common(&num, 10u, false,
strconv::SignNeg, strconv::DigAll);
buf
@ -352,149 +349,176 @@ pub fn to_str(num: T) -> ~str {
/// Convert to a string in a given base.
#[inline(always)]
pub fn to_str_radix(num: T, radix: uint) -> ~str {
pub fn to_str_radix(num: $T, radix: uint) -> ~str {
let (buf, _) = strconv::to_str_common(&num, radix, false,
strconv::SignNeg, strconv::DigAll);
buf
}
impl ToStr for T {
impl ToStr for $T {
#[inline(always)]
fn to_str(&self) -> ~str {
to_str(*self)
}
}
impl ToStrRadix for T {
impl ToStrRadix for $T {
#[inline(always)]
fn to_str_radix(&self, radix: uint) -> ~str {
to_str_radix(*self, radix)
}
}
impl Primitive for $T {
#[inline(always)]
fn bits() -> uint { bits }
#[inline(always)]
fn bytes() -> uint { bits / 8 }
}
impl BitCount for $T {
/// Counts the number of bits set. Wraps LLVM's `ctpop` intrinsic.
#[inline(always)]
fn population_count(&self) -> $T {
(*self as $T_SIGNED).population_count() as $T
}
/// Counts the number of leading zeros. Wraps LLVM's `ctlz` intrinsic.
#[inline(always)]
fn leading_zeros(&self) -> $T {
(*self as $T_SIGNED).leading_zeros() as $T
}
/// Counts the number of trailing zeros. Wraps LLVM's `cttz` intrinsic.
#[inline(always)]
fn trailing_zeros(&self) -> $T {
(*self as $T_SIGNED).trailing_zeros() as $T
}
}
#[cfg(test)]
mod tests {
use super::*;
use super::inst::T;
use prelude::*;
#[test]
fn test_num() {
num::test_num(10 as T, 2 as T);
num::test_num(10 as $T, 2 as $T);
}
#[test]
fn test_orderable() {
assert_eq!((1 as T).min(&(2 as T)), 1 as T);
assert_eq!((2 as T).min(&(1 as T)), 1 as T);
assert_eq!((1 as T).max(&(2 as T)), 2 as T);
assert_eq!((2 as T).max(&(1 as T)), 2 as T);
assert_eq!((1 as T).clamp(&(2 as T), &(4 as T)), 2 as T);
assert_eq!((8 as T).clamp(&(2 as T), &(4 as T)), 4 as T);
assert_eq!((3 as T).clamp(&(2 as T), &(4 as T)), 3 as T);
assert_eq!((1 as $T).min(&(2 as $T)), 1 as $T);
assert_eq!((2 as $T).min(&(1 as $T)), 1 as $T);
assert_eq!((1 as $T).max(&(2 as $T)), 2 as $T);
assert_eq!((2 as $T).max(&(1 as $T)), 2 as $T);
assert_eq!((1 as $T).clamp(&(2 as $T), &(4 as $T)), 2 as $T);
assert_eq!((8 as $T).clamp(&(2 as $T), &(4 as $T)), 4 as $T);
assert_eq!((3 as $T).clamp(&(2 as $T), &(4 as $T)), 3 as $T);
}
#[test]
fn test_gcd() {
assert_eq!((10 as T).gcd(&2), 2 as T);
assert_eq!((10 as T).gcd(&3), 1 as T);
assert_eq!((0 as T).gcd(&3), 3 as T);
assert_eq!((3 as T).gcd(&3), 3 as T);
assert_eq!((56 as T).gcd(&42), 14 as T);
assert_eq!((10 as $T).gcd(&2), 2 as $T);
assert_eq!((10 as $T).gcd(&3), 1 as $T);
assert_eq!((0 as $T).gcd(&3), 3 as $T);
assert_eq!((3 as $T).gcd(&3), 3 as $T);
assert_eq!((56 as $T).gcd(&42), 14 as $T);
}
#[test]
fn test_lcm() {
assert_eq!((1 as T).lcm(&0), 0 as T);
assert_eq!((0 as T).lcm(&1), 0 as T);
assert_eq!((1 as T).lcm(&1), 1 as T);
assert_eq!((8 as T).lcm(&9), 72 as T);
assert_eq!((11 as T).lcm(&5), 55 as T);
assert_eq!((99 as T).lcm(&17), 1683 as T);
assert_eq!((1 as $T).lcm(&0), 0 as $T);
assert_eq!((0 as $T).lcm(&1), 0 as $T);
assert_eq!((1 as $T).lcm(&1), 1 as $T);
assert_eq!((8 as $T).lcm(&9), 72 as $T);
assert_eq!((11 as $T).lcm(&5), 55 as $T);
assert_eq!((99 as $T).lcm(&17), 1683 as $T);
}
#[test]
fn test_multiple_of() {
assert!((6 as T).is_multiple_of(&(6 as T)));
assert!((6 as T).is_multiple_of(&(3 as T)));
assert!((6 as T).is_multiple_of(&(1 as T)));
assert!((6 as $T).is_multiple_of(&(6 as $T)));
assert!((6 as $T).is_multiple_of(&(3 as $T)));
assert!((6 as $T).is_multiple_of(&(1 as $T)));
}
#[test]
fn test_even() {
assert_eq!((0 as T).is_even(), true);
assert_eq!((1 as T).is_even(), false);
assert_eq!((2 as T).is_even(), true);
assert_eq!((3 as T).is_even(), false);
assert_eq!((4 as T).is_even(), true);
assert_eq!((0 as $T).is_even(), true);
assert_eq!((1 as $T).is_even(), false);
assert_eq!((2 as $T).is_even(), true);
assert_eq!((3 as $T).is_even(), false);
assert_eq!((4 as $T).is_even(), true);
}
#[test]
fn test_odd() {
assert_eq!((0 as T).is_odd(), false);
assert_eq!((1 as T).is_odd(), true);
assert_eq!((2 as T).is_odd(), false);
assert_eq!((3 as T).is_odd(), true);
assert_eq!((4 as T).is_odd(), false);
assert_eq!((0 as $T).is_odd(), false);
assert_eq!((1 as $T).is_odd(), true);
assert_eq!((2 as $T).is_odd(), false);
assert_eq!((3 as $T).is_odd(), true);
assert_eq!((4 as $T).is_odd(), false);
}
#[test]
fn test_bitwise() {
assert_eq!(0b1110 as T, (0b1100 as T).bitor(&(0b1010 as T)));
assert_eq!(0b1000 as T, (0b1100 as T).bitand(&(0b1010 as T)));
assert_eq!(0b0110 as T, (0b1100 as T).bitxor(&(0b1010 as T)));
assert_eq!(0b1110 as T, (0b0111 as T).shl(&(1 as T)));
assert_eq!(0b0111 as T, (0b1110 as T).shr(&(1 as T)));
assert_eq!(max_value - (0b1011 as T), (0b1011 as T).not());
assert_eq!(0b1110 as $T, (0b1100 as $T).bitor(&(0b1010 as $T)));
assert_eq!(0b1000 as $T, (0b1100 as $T).bitand(&(0b1010 as $T)));
assert_eq!(0b0110 as $T, (0b1100 as $T).bitxor(&(0b1010 as $T)));
assert_eq!(0b1110 as $T, (0b0111 as $T).shl(&(1 as $T)));
assert_eq!(0b0111 as $T, (0b1110 as $T).shr(&(1 as $T)));
assert_eq!(max_value - (0b1011 as $T), (0b1011 as $T).not());
}
#[test]
fn test_bitcount() {
assert_eq!((0b010101 as T).population_count(), 3);
assert_eq!((0b010101 as $T).population_count(), 3);
}
#[test]
fn test_primitive() {
assert_eq!(Primitive::bits::<T>(), sys::size_of::<T>() * 8);
assert_eq!(Primitive::bytes::<T>(), sys::size_of::<T>());
assert_eq!(Primitive::bits::<$T>(), sys::size_of::<$T>() * 8);
assert_eq!(Primitive::bytes::<$T>(), sys::size_of::<$T>());
}
#[test]
pub fn test_to_str() {
assert_eq!(to_str_radix(0 as T, 10u), ~"0");
assert_eq!(to_str_radix(1 as T, 10u), ~"1");
assert_eq!(to_str_radix(2 as T, 10u), ~"2");
assert_eq!(to_str_radix(11 as T, 10u), ~"11");
assert_eq!(to_str_radix(11 as T, 16u), ~"b");
assert_eq!(to_str_radix(255 as T, 16u), ~"ff");
assert_eq!(to_str_radix(0xff as T, 10u), ~"255");
assert_eq!(to_str_radix(0 as $T, 10u), ~"0");
assert_eq!(to_str_radix(1 as $T, 10u), ~"1");
assert_eq!(to_str_radix(2 as $T, 10u), ~"2");
assert_eq!(to_str_radix(11 as $T, 10u), ~"11");
assert_eq!(to_str_radix(11 as $T, 16u), ~"b");
assert_eq!(to_str_radix(255 as $T, 16u), ~"ff");
assert_eq!(to_str_radix(0xff as $T, 10u), ~"255");
}
#[test]
pub fn test_from_str() {
assert_eq!(from_str("0"), Some(0u as T));
assert_eq!(from_str("3"), Some(3u as T));
assert_eq!(from_str("10"), Some(10u as T));
assert_eq!(u32::from_str("123456789"), Some(123456789 as u32));
assert_eq!(from_str("00100"), Some(100u as T));
assert_eq!(from_str(~"0"), Some(0u as $T));
assert_eq!(from_str(~"3"), Some(3u as $T));
assert_eq!(from_str(~"10"), Some(10u as $T));
assert_eq!(u32::from_str(~"123456789"), Some(123456789 as u32));
assert_eq!(from_str(~"00100"), Some(100u as $T));
assert!(from_str("").is_none());
assert!(from_str(" ").is_none());
assert!(from_str("x").is_none());
assert!(from_str(~"").is_none());
assert!(from_str(~" ").is_none());
assert!(from_str(~"x").is_none());
}
#[test]
pub fn test_parse_bytes() {
use str::to_bytes;
assert_eq!(parse_bytes(to_bytes("123"), 10u), Some(123u as T));
assert_eq!(parse_bytes(to_bytes("1001"), 2u), Some(9u as T));
assert_eq!(parse_bytes(to_bytes("123"), 8u), Some(83u as T));
assert_eq!(u16::parse_bytes(to_bytes("123"), 16u), Some(291u as u16));
assert_eq!(u16::parse_bytes(to_bytes("ffff"), 16u), Some(65535u as u16));
assert_eq!(parse_bytes(to_bytes("z"), 36u), Some(35u as T));
assert_eq!(parse_bytes(to_bytes(~"123"), 10u), Some(123u as $T));
assert_eq!(parse_bytes(to_bytes(~"1001"), 2u), Some(9u as $T));
assert_eq!(parse_bytes(to_bytes(~"123"), 8u), Some(83u as $T));
assert_eq!(u16::parse_bytes(to_bytes(~"123"), 16u), Some(291u as u16));
assert_eq!(u16::parse_bytes(to_bytes(~"ffff"), 16u), Some(65535u as u16));
assert_eq!(parse_bytes(to_bytes(~"z"), 36u), Some(35u as $T));
assert!(parse_bytes(to_bytes("Z"), 10u).is_none());
assert!(parse_bytes(to_bytes("_"), 2u).is_none());
assert!(parse_bytes(to_bytes(~"Z"), 10u).is_none());
assert!(parse_bytes(to_bytes(~"_"), 2u).is_none());
}
#[test]
@ -527,36 +551,36 @@ mod tests {
#[test]
fn test_uint_from_str_overflow() {
let mut u8_val: u8 = 255_u8;
assert_eq!(u8::from_str("255"), Some(u8_val));
assert!(u8::from_str("256").is_none());
assert_eq!(u8::from_str(~"255"), Some(u8_val));
assert!(u8::from_str(~"256").is_none());
u8_val += 1 as u8;
assert_eq!(u8::from_str("0"), Some(u8_val));
assert!(u8::from_str("-1").is_none());
assert_eq!(u8::from_str(~"0"), Some(u8_val));
assert!(u8::from_str(~"-1").is_none());
let mut u16_val: u16 = 65_535_u16;
assert_eq!(u16::from_str("65535"), Some(u16_val));
assert!(u16::from_str("65536").is_none());
assert_eq!(u16::from_str(~"65535"), Some(u16_val));
assert!(u16::from_str(~"65536").is_none());
u16_val += 1 as u16;
assert_eq!(u16::from_str("0"), Some(u16_val));
assert!(u16::from_str("-1").is_none());
assert_eq!(u16::from_str(~"0"), Some(u16_val));
assert!(u16::from_str(~"-1").is_none());
let mut u32_val: u32 = 4_294_967_295_u32;
assert_eq!(u32::from_str("4294967295"), Some(u32_val));
assert!(u32::from_str("4294967296").is_none());
assert_eq!(u32::from_str(~"4294967295"), Some(u32_val));
assert!(u32::from_str(~"4294967296").is_none());
u32_val += 1 as u32;
assert_eq!(u32::from_str("0"), Some(u32_val));
assert!(u32::from_str("-1").is_none());
assert_eq!(u32::from_str(~"0"), Some(u32_val));
assert!(u32::from_str(~"-1").is_none());
let mut u64_val: u64 = 18_446_744_073_709_551_615_u64;
assert_eq!(u64::from_str("18446744073709551615"), Some(u64_val));
assert!(u64::from_str("18446744073709551616").is_none());
assert_eq!(u64::from_str(~"18446744073709551615"), Some(u64_val));
assert!(u64::from_str(~"18446744073709551616").is_none());
u64_val += 1 as u64;
assert_eq!(u64::from_str("0"), Some(u64_val));
assert!(u64::from_str("-1").is_none());
assert_eq!(u64::from_str(~"0"), Some(u64_val));
assert!(u64::from_str(~"-1").is_none());
}
#[test]
@ -639,3 +663,5 @@ mod tests {
for range_step(0,-10,0) |_i| {}
}
}
}))