nextafter fix

burrbull · Jan 24, 2024 · f9f499f · f9f499f
1 parent 6412fc2
commit f9f499f
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/src/f64.rs b/src/f64.rs
@@ -873,15 +873,15 @@ pub fn nextafter(x: f64, y: f64) -> f64 {
     let mut cxi = x.to_bits() as i64;
     let c = (cxi < 0) == (y < x);
     if c {
-        cxi = -(cxi ^ (1 << 63));
+        cxi = -(cxi ^ i64::MIN);
     }
 
     if x != y {
         cxi -= 1;
     }
 
     if c {
-        cxi = -(((cxi as u64) ^ (1u64 << 63)) as i64);
+        cxi = -(cxi ^ i64::MIN);
     }
 
     let cxf = f64::from_bits(cxi as u64);

diff --git a/src/f64x.rs b/src/f64x.rs
@@ -915,7 +915,7 @@ where
     let mut xi2 = x.to_bits().cast::<i64>();
     let c = x.is_sign_negative() ^ y.simd_ge(x);
 
-    let mut t = (xi2 ^ I64x::splat(0x_7fff_ffff_ffff_ffff_u64 as _)) + I64x::splat(1);
+    let mut t = (xi2 ^ I64x::splat(i64::MAX)) + I64x::splat(1);
     t += swap_upper_lower(
         I64x::splat(1)
             & t.simd_eq(I64x::splat(0x_ffff_ffff_0000_0000_u64 as _))
@@ -943,7 +943,7 @@ where
         .to_bits()
         .cast();
 
-    let mut t = (xi2 ^ I64x::splat(0x_7fff_ffff_ffff_ffff_u64 as _)) + I64x::splat(1);
+    let mut t = (xi2 ^ I64x::splat(i64::MAX)) + I64x::splat(1);
     t += swap_upper_lower(
         I64x::splat(1)
             & t.simd_eq(I64x::splat(0x_ffff_ffff_0000_0000_u64 as _))