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auto merge of #7072 : thestinger/rust/ptr, r=catamorphism 

I don't think this will even show up in the documentation right now.... but it should still be correct :).
This commit is contained in:
bors 2013-06-11 22:31:39 -07:00
parent cc80652e4a fbae011ad1
commit 4a52ff0786
1 changed files with 29 additions and 13 deletions
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42
src/libstd/ptr.rs
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@ -69,7 +69,7 @@ pub fn is_null<T>(ptr: *const T) -> bool { ptr == null() }
pub fn is_not_null<T>(ptr: *const T) -> bool { !is_null(ptr) }
/**
* Copies data from one location to another
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may overlap.
@ -83,7 +83,7 @@ pub unsafe fn copy_memory<T>(dst: *mut T, src: *const T, count: uint) {
}
/**
* Copies data from one location to another
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may overlap.
@ -95,6 +95,12 @@ pub unsafe fn copy_memory<T>(dst: *mut T, src: *const T, count: uint) {
memmove32(dst, src as *T, count as u32);
}
/**
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may overlap.
*/
#[inline(always)]
#[cfg(target_word_size = "64", stage0)]
pub unsafe fn copy_memory<T>(dst: *mut T, src: *const T, count: uint) {
@ -104,7 +110,7 @@ pub unsafe fn copy_memory<T>(dst: *mut T, src: *const T, count: uint) {
}
/**
* Copies data from one location to another
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may overlap.
@ -116,6 +122,12 @@ pub unsafe fn copy_memory<T>(dst: *mut T, src: *const T, count: uint) {
memmove64(dst, src as *T, count as u64);
}
/**
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may *not* overlap.
*/
#[inline(always)]
#[cfg(target_word_size = "32", stage0)]
pub unsafe fn copy_nonoverlapping_memory<T>(dst: *mut T, src: *const T, count: uint) {
@ -125,11 +137,10 @@ pub unsafe fn copy_nonoverlapping_memory<T>(dst: *mut T, src: *const T, count: u
}
/**
* Copies data from one location to another. This uses memcpy instead of memmove
* to take advantage of the knowledge that the memory does not overlap.
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may overlap.
* and destination may *not* overlap.
*/
#[inline(always)]
#[cfg(target_word_size = "32", not(stage0))]
@ -138,6 +149,12 @@ pub unsafe fn copy_nonoverlapping_memory<T>(dst: *mut T, src: *const T, count: u
memcpy32(dst, src as *T, count as u32);
}
/**
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may *not* overlap.
*/
#[inline(always)]
#[cfg(target_word_size = "64", stage0)]
pub unsafe fn copy_nonoverlapping_memory<T>(dst: *mut T, src: *const T, count: uint) {
@ -147,11 +164,10 @@ pub unsafe fn copy_nonoverlapping_memory<T>(dst: *mut T, src: *const T, count: u
}
/**
* Copies data from one location to another. This uses memcpy instead of memmove
* to take advantage of the knowledge that the memory does not overlap.
* Copies data from one location to another.
*
* Copies `count` elements (not bytes) from `src` to `dst`. The source
* and destination may overlap.
* and destination may *not* overlap.
*/
#[inline(always)]
#[cfg(target_word_size = "64", not(stage0))]
@ -161,8 +177,8 @@ pub unsafe fn copy_nonoverlapping_memory<T>(dst: *mut T, src: *const T, count: u
}
/**
* Invokes memset on the specified pointer, setting `count` bytes of memory
* starting at `dst` to `c`.
* Invokes memset on the specified pointer, setting `count * size_of::<T>()`
* bytes of memory starting at `dst` to `c`.
*/
#[inline(always)]
#[cfg(target_word_size = "32", not(stage0))]
@ -172,8 +188,8 @@ pub unsafe fn set_memory<T>(dst: *mut T, c: u8, count: uint) {
}
/**
* Invokes memset on the specified pointer, setting `count` bytes of memory
* starting at `dst` to `c`.
* Invokes memset on the specified pointer, setting `count * size_of::<T>()`
* bytes of memory starting at `dst` to `c`.
*/
#[inline(always)]
#[cfg(target_word_size = "64", not(stage0))]