diff options
| -rw-r--r-- | library/std/src/f64.rs | 6 | ||||
| -rw-r--r-- | library/std/src/sys/pal/mod.rs | 31 |
2 files changed, 3 insertions, 34 deletions
diff --git a/library/std/src/f64.rs b/library/std/src/f64.rs index f8c66a3e717..1ca2b32e241 100644 --- a/library/std/src/f64.rs +++ b/library/std/src/f64.rs @@ -520,7 +520,7 @@ impl f64 { #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn ln(self) -> f64 { - crate::sys::log_wrapper(self, |n| unsafe { intrinsics::logf64(n) }) + unsafe { intrinsics::logf64(self) } } /// Returns the logarithm of the number with respect to an arbitrary base. @@ -574,7 +574,7 @@ impl f64 { #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn log2(self) -> f64 { - crate::sys::log_wrapper(self, crate::sys::log2f64) + crate::sys::log2f64(self) } /// Returns the base 10 logarithm of the number. @@ -599,7 +599,7 @@ impl f64 { #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn log10(self) -> f64 { - crate::sys::log_wrapper(self, |n| unsafe { intrinsics::log10f64(n) }) + unsafe { intrinsics::log10f64(self) } } /// The positive difference of two numbers. diff --git a/library/std/src/sys/pal/mod.rs b/library/std/src/sys/pal/mod.rs index 8c75ac65299..df017624448 100644 --- a/library/std/src/sys/pal/mod.rs +++ b/library/std/src/sys/pal/mod.rs @@ -94,36 +94,5 @@ cfg_if::cfg_if! { } } -// Solaris/Illumos requires a wrapper around log, log2, and log10 functions -// because of their non-standard behavior (e.g., log(-n) returns -Inf instead -// of expected NaN). -#[cfg(not(test))] -#[cfg(any(target_os = "solaris", target_os = "illumos"))] -#[inline] -pub fn log_wrapper<F: Fn(f64) -> f64>(n: f64, log_fn: F) -> f64 { - if n.is_finite() { - if n > 0.0 { - log_fn(n) - } else if n == 0.0 { - f64::NEG_INFINITY // log(0) = -Inf - } else { - f64::NAN // log(-n) = NaN - } - } else if n.is_nan() { - n // log(NaN) = NaN - } else if n > 0.0 { - n // log(Inf) = Inf - } else { - f64::NAN // log(-Inf) = NaN - } -} - -#[cfg(not(test))] -#[cfg(not(any(target_os = "solaris", target_os = "illumos")))] -#[inline] -pub fn log_wrapper<F: Fn(f64) -> f64>(n: f64, log_fn: F) -> f64 { - log_fn(n) -} - #[cfg(not(target_os = "uefi"))] pub type RawOsError = i32; |