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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 13:54:38 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 13:54:38 +0000 |
| commit | 8c1ab65c0f548d20b7f177bdb736daaf603340e1 (patch) | |
| tree | df55b7e75bf43f2bf500845b105afe3ac3a5157e /libc-top-half/musl/src/math/ceilf.c | |
| parent | Initial commit. (diff) | |
| download | wasi-libc-8c1ab65c0f548d20b7f177bdb736daaf603340e1.tar.xz wasi-libc-8c1ab65c0f548d20b7f177bdb736daaf603340e1.zip | |
Adding upstream version 0.0~git20221206.8b7148f.upstream/0.0_git20221206.8b7148f
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libc-top-half/musl/src/math/ceilf.c')
| -rw-r--r-- | libc-top-half/musl/src/math/ceilf.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/math/ceilf.c b/libc-top-half/musl/src/math/ceilf.c new file mode 100644 index 0000000..869835f --- /dev/null +++ b/libc-top-half/musl/src/math/ceilf.c @@ -0,0 +1,27 @@ +#include "libm.h" + +float ceilf(float x) +{ + union {float f; uint32_t i;} u = {x}; + int e = (int)(u.i >> 23 & 0xff) - 0x7f; + uint32_t m; + + if (e >= 23) + return x; + if (e >= 0) { + m = 0x007fffff >> e; + if ((u.i & m) == 0) + return x; + FORCE_EVAL(x + 0x1p120f); + if (u.i >> 31 == 0) + u.i += m; + u.i &= ~m; + } else { + FORCE_EVAL(x + 0x1p120f); + if (u.i >> 31) + u.f = -0.0; + else if (u.i << 1) + u.f = 1.0; + } + return u.f; +} |