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| author | nsz <nsz@port70.net> | 2012-03-19 23:41:19 +0100 |
|---|---|---|
| committer | nsz <nsz@port70.net> | 2012-03-19 23:41:19 +0100 |
| commit | 0cbb65479147ecdaa664e88cc2a5a925f3de502f (patch) | |
| tree | 7b6dc53fcec6497d55746d3cc47f167a20b7aa57 /src/math/log2f.c | |
| parent | b03255af77776703c8d48819e824d09f6f54ba86 (diff) | |
| download | musl-0cbb65479147ecdaa664e88cc2a5a925f3de502f.tar.gz musl-0cbb65479147ecdaa664e88cc2a5a925f3de502f.tar.bz2 musl-0cbb65479147ecdaa664e88cc2a5a925f3de502f.tar.xz musl-0cbb65479147ecdaa664e88cc2a5a925f3de502f.zip | |
code cleanup of named constants
zero, one, two, half are replaced by const literals
The policy was to use the f suffix for float consts (1.0f),
but don't use suffix for long double consts (these consts
can be exactly represented as double).
Diffstat (limited to 'src/math/log2f.c')
| -rw-r--r-- | src/math/log2f.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/src/math/log2f.c b/src/math/log2f.c index c9b9282c..e0d6a9e4 100644 --- a/src/math/log2f.c +++ b/src/math/log2f.c @@ -21,8 +21,6 @@ two25 = 3.3554432000e+07, /* 0x4c000000 */ ivln2hi = 1.4428710938e+00, /* 0x3fb8b000 */ ivln2lo = -1.7605285393e-04; /* 0xb9389ad4 */ -static const float zero = 0.0; - float log2f(float x) { float f,hfsq,hi,lo,r,y; @@ -33,9 +31,9 @@ float log2f(float x) k = 0; if (hx < 0x00800000) { /* x < 2**-126 */ if ((hx&0x7fffffff) == 0) - return -two25/zero; /* log(+-0)=-inf */ + return -two25/0.0f; /* log(+-0)=-inf */ if (hx < 0) - return (x-x)/zero; /* log(-#) = NaN */ + return (x-x)/0.0f; /* log(-#) = NaN */ /* subnormal number, scale up x */ k -= 25; x *= two25; @@ -44,7 +42,7 @@ float log2f(float x) if (hx >= 0x7f800000) return x+x; if (hx == 0x3f800000) - return zero; /* log(1) = +0 */ + return 0.0f; /* log(1) = +0 */ k += (hx>>23) - 127; hx &= 0x007fffff; i = (hx+(0x4afb0d))&0x800000; |