diff options
| author | tgschultz <tgschultz@gmail.com> | 2018-05-11 21:36:02 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-05-11 21:36:02 -0500 |
| commit | 8c1872543c8cf76215cc4bf3ced4637bb1065a4e (patch) | |
| tree | 72dfebb643ab61579e3fb8dd58cd4610ffe876fa /std/math/log2.zig | |
| parent | 7186e92c86982950d0aa7c0c2deef9ef96bc1264 (diff) | |
| parent | 6e821078f625a03eb8b7794c983da0f7793366ab (diff) | |
| download | zig-8c1872543c8cf76215cc4bf3ced4637bb1065a4e.tar.gz zig-8c1872543c8cf76215cc4bf3ced4637bb1065a4e.zip | |
Merge pull request #1 from zig-lang/master
Sync with zig-lang/zig master
Diffstat (limited to 'std/math/log2.zig')
| -rw-r--r-- | std/math/log2.zig | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/std/math/log2.zig b/std/math/log2.zig index 998d6d6c5e..d5bbe385c2 100644 --- a/std/math/log2.zig +++ b/std/math/log2.zig @@ -31,17 +31,12 @@ pub fn log2(x: var) @typeOf(x) { return result; }, TypeId.Int => { - return log2_int(T, x); + return math.log2_int(T, x); }, else => @compileError("log2 not implemented for " ++ @typeName(T)), } } -pub fn log2_int(comptime T: type, x: T) T { - assert(x != 0); - return T.bit_count - 1 - T(@clz(x)); -} - pub fn log2_32(x_: f32) f32 { const ivln2hi: f32 = 1.4428710938e+00; const ivln2lo: f32 = -1.7605285393e-04; |