diff options
| -rw-r--r-- | library/core/src/convert/num.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/library/core/src/convert/num.rs b/library/core/src/convert/num.rs index baee008b7ed..a74a56bc5b2 100644 --- a/library/core/src/convert/num.rs +++ b/library/core/src/convert/num.rs @@ -174,6 +174,16 @@ impl_from! { f32, f64, #[stable(feature = "lossless_float_conv", since = "1.6.0" impl const From<bool> for f32 { /// Converts `bool` to `f32` losslessly. The resulting value is positive /// `0.0` for `false` and `1.0` for `true` values. + /// + /// # Examples + /// ``` + /// let x: f32 = false.into(); + /// assert_eq!(x, 0.0); + /// assert!(x.is_sign_positive()); + /// + /// let y: f32 = true.into(); + /// assert_eq!(y, 1.0); + /// ``` #[inline] fn from(small: bool) -> Self { small as u8 as Self @@ -184,6 +194,16 @@ impl const From<bool> for f32 { impl const From<bool> for f64 { /// Converts `bool` to `f64` losslessly. The resulting value is positive /// `0.0` for `false` and `1.0` for `true` values. + /// + /// # Examples + /// ``` + /// let x: f64 = false.into(); + /// assert_eq!(x, 0.0); + /// assert!(x.is_sign_positive()); + /// + /// let y: f64 = true.into(); + /// assert_eq!(y, 1.0); + /// ``` #[inline] fn from(small: bool) -> Self { small as u8 as Self |