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| author | Andrea Orru <andrea@orru.io> | 2018-08-06 01:43:19 -0400 |
|---|---|---|
| committer | Andrea Orru <andrea@orru.io> | 2018-08-06 01:43:19 -0400 |
| commit | d2f5e57b68da0b16e5789ca19045ccbcb4ecfa8d (patch) | |
| tree | e9fa3caec533a0d1e2b434868b2fde1f9240e5c8 /std/math/isnan.zig | |
| parent | 06614b3fa09954464c2e2f32756cacedc178a282 (diff) | |
| parent | 63a23e848a62d5f167f8d5478de9766cb24aa6eb (diff) | |
| download | zig-d2f5e57b68da0b16e5789ca19045ccbcb4ecfa8d.tar.gz zig-d2f5e57b68da0b16e5789ca19045ccbcb4ecfa8d.zip | |
Merge branch 'master' into zen_stdlib
Diffstat (limited to 'std/math/isnan.zig')
| -rw-r--r-- | std/math/isnan.zig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/std/math/isnan.zig b/std/math/isnan.zig index 67971e3d0c..ef3002d8e1 100644 --- a/std/math/isnan.zig +++ b/std/math/isnan.zig @@ -5,6 +5,10 @@ const assert = std.debug.assert; pub fn isNan(x: var) bool { const T = @typeOf(x); switch (T) { + f16 => { + const bits = @bitCast(u16, x); + return (bits & 0x7fff) > 0x7c00; + }, f32 => { const bits = @bitCast(u32, x); return bits & 0x7FFFFFFF > 0x7F800000; @@ -26,8 +30,10 @@ pub fn isSignalNan(x: var) bool { } test "math.isNan" { + assert(isNan(math.nan(f16))); assert(isNan(math.nan(f32))); assert(isNan(math.nan(f64))); + assert(!isNan(f16(1.0))); assert(!isNan(f32(1.0))); assert(!isNan(f64(1.0))); } |