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Document powf and powi values that are always 1.0 (f32) #136013

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Document powf and powi values that are always 1.0 (f32) #136013

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2a9fbd2
Document powf and powi values that are always 1.0 (f32)
hkBst Jan 24, 2025
56bb933
fix typo of f64 to f32
hkBst Jan 24, 2025
d39ee71
add semicolons
hkBst Jan 24, 2025
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7 changes: 5 additions & 2 deletions library/std/src/f32.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -306,8 +306,9 @@ impl f32 {
/// ```
/// let x = 2.0_f32;
/// let abs_difference = (x.powi(2) - (x * x)).abs();
///
/// assert!(abs_difference <= f32::EPSILON);
///
/// assert_eq!(f64::powi(f32::NAN, 0), 1.0);
/// ```
#[rustc_allow_incoherent_impl]
#[must_use = "method returns a new number and does not mutate the original value"]
Expand All @@ -329,8 +330,10 @@ impl f32 {
/// ```
/// let x = 2.0_f32;
/// let abs_difference = (x.powf(2.0) - (x * x)).abs();
///
/// assert!(abs_difference <= f32::EPSILON);
///
/// assert_eq!(f32::powf(1.0, f32::NAN), 1.0)
/// assert_eq!(f32::powf(f32::NAN, 0.0), 1.0)
/// ```
#[rustc_allow_incoherent_impl]
#[must_use = "method returns a new number and does not mutate the original value"]
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