From d88f979437299dfda0f5214ec14e809a10e10ff0 Mon Sep 17 00:00:00 2001 From: Deadbeef Date: Sun, 16 Apr 2023 07:04:17 +0000 Subject: [PATCH] hack signum as well --- library/core/src/num/int_macros.rs | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs index aec15212d7f..d645e8dcbfd 100644 --- a/library/core/src/num/int_macros.rs +++ b/library/core/src/num/int_macros.rs @@ -2603,13 +2603,16 @@ pub const fn abs_diff(self, other: Self) -> $UnsignedT { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[rustc_allow_const_fn_unstable(const_cmp)] pub const fn signum(self) -> Self { // Picking the right way to phrase this is complicated // () // so delegate it to `Ord` which is already producing -1/0/+1 // exactly like we need and can be the place to deal with the complexity. - self.cmp(&0) as _ + + // FIXME(const-hack): replace with cmp + if self < 0 { -1 } + else if self == 0 { 0 } + else { 1 } } /// Returns `true` if `self` is positive and `false` if the number is zero or