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Auto merge of #59745 - cwhakes:master, r=sanxiyn

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Change `copytest` parameter name from `y` to `sign`

This should help clarify ambiguity with whether `a.copysign(b)` applies the sign of `a` to `b` or `b` to `a`.

r? @Centril
This commit is contained in:
bors 2019-04-06 10:03:38 +00:00
commit 209b0b41ac
2 changed files with 10 additions and 10 deletions
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10
src/libstd/f32.rs
View File

@ -193,11 +193,11 @@ impl f32 {
}
/// Returns a number composed of the magnitude of `self` and the sign of
/// `y`.
/// `sign`.
///
/// Equal to `self` if the sign of `self` and `y` are the same, otherwise
/// Equal to `self` if the sign of `self` and `sign` are the same, otherwise
/// equal to `-self`. If `self` is a `NAN`, then a `NAN` with the sign of
/// `y` is returned.
/// `sign` is returned.
///
/// # Examples
///
@ -216,8 +216,8 @@ impl f32 {
#[inline]
#[must_use]
#[stable(feature = "copysign", since = "1.35.0")]
pub fn copysign(self, y: f32) -> f32 {
unsafe { intrinsics::copysignf32(self, y) }
pub fn copysign(self, sign: f32) -> f32 {
unsafe { intrinsics::copysignf32(self, sign) }
}
/// Fused multiply-add. Computes `(self * a) + b` with only one rounding

10
src/libstd/f64.rs
View File

@ -171,11 +171,11 @@ impl f64 {
}
/// Returns a number composed of the magnitude of `self` and the sign of
/// `y`.
/// `sign`.
///
/// Equal to `self` if the sign of `self` and `y` are the same, otherwise
/// Equal to `self` if the sign of `self` and `sign` are the same, otherwise
/// equal to `-self`. If `self` is a `NAN`, then a `NAN` with the sign of
/// `y` is returned.
/// `sign` is returned.
///
/// # Examples
///
@ -194,8 +194,8 @@ impl f64 {
#[inline]
#[must_use]
#[stable(feature = "copysign", since = "1.35.0")]
pub fn copysign(self, y: f64) -> f64 {
unsafe { intrinsics::copysignf64(self, y) }
pub fn copysign(self, sign: f64) -> f64 {
unsafe { intrinsics::copysignf64(self, sign) }
}
/// Fused multiply-add. Computes `(self * a) + b` with only one rounding