diff options
Diffstat (limited to 'src/math/logf.c')
| -rw-r--r-- | src/math/logf.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/src/math/logf.c b/src/math/logf.c index a4ed697b..c7f7dbe6 100644 --- a/src/math/logf.c +++ b/src/math/logf.c @@ -25,8 +25,6 @@ Lg2 = 0xccce13.0p-25, /* 0.40000972152 */ Lg3 = 0x91e9ee.0p-25, /* 0.28498786688 */ Lg4 = 0xf89e26.0p-26; /* 0.24279078841 */ -static const float zero = 0.0; - float logf(float x) { float hfsq,f,s,z,R,w,t1,t2,dk; @@ -37,9 +35,9 @@ float logf(float x) k = 0; if (ix < 0x00800000) { /* x < 2**-126 */ if ((ix & 0x7fffffff) == 0) - return -two25/zero; /* log(+-0)=-inf */ + return -two25/0.0f; /* log(+-0)=-inf */ if (ix < 0) - return (x-x)/zero; /* log(-#) = NaN */ + return (x-x)/0.0f; /* log(-#) = NaN */ /* subnormal number, scale up x */ k -= 25; x *= two25; @@ -54,9 +52,9 @@ float logf(float x) k += i>>23; f = x - 1.0f; if ((0x007fffff & (0x8000 + ix)) < 0xc000) { /* -2**-9 <= f < 2**-9 */ - if (f == zero) { + if (f == 0.0f) { if (k == 0) - return zero; + return 0.0f; dk = (float)k; return dk*ln2_hi + dk*ln2_lo; } |