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| author | Rich Felker <dalias@aerifal.cx> | 2012-03-19 22:07:43 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-03-19 22:07:43 -0400 |
| commit | 97721a5508415a2f10eb068e022093811c9ff8be (patch) | |
| tree | 88e9ce153895ad949576fa7ce1eeee4b02286479 /src/math/acosf.c | |
| parent | acb744921b73f5a73803e533e5e4a4896d164a26 (diff) | |
| parent | 0cbb65479147ecdaa664e88cc2a5a925f3de502f (diff) | |
| download | musl-97721a5508415a2f10eb068e022093811c9ff8be.tar.gz musl-97721a5508415a2f10eb068e022093811c9ff8be.tar.bz2 musl-97721a5508415a2f10eb068e022093811c9ff8be.tar.xz musl-97721a5508415a2f10eb068e022093811c9ff8be.zip | |
Merge remote branch 'nsz/master'
Diffstat (limited to 'src/math/acosf.c')
| -rw-r--r-- | src/math/acosf.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/src/math/acosf.c b/src/math/acosf.c index 945347cb..d875f3ef 100644 --- a/src/math/acosf.c +++ b/src/math/acosf.c @@ -16,8 +16,7 @@ #include "libm.h" static const float -one = 1.0000000000e+00, /* 0x3F800000 */ -pi = 3.1415925026e+00, /* 0x40490fda */ +pi = 3.1415925026e+00, /* 0x40490fda */ pio2_hi = 1.5707962513e+00; /* 0x3fc90fda */ static const volatile float pio2_lo = 7.5497894159e-08; /* 0x33a22168 */ @@ -46,13 +45,13 @@ float acosf(float x) return pio2_hi + pio2_lo; z = x*x; p = z*(pS0+z*(pS1+z*pS2)); - q = one+z*qS1; + q = 1.0f+z*qS1; r = p/q; return pio2_hi - (x - (pio2_lo-x*r)); } else if (hx < 0) { /* x < -0.5 */ - z = (one+x)*0.5f; + z = (1.0f+x)*0.5f; p = z*(pS0+z*(pS1+z*pS2)); - q = one+z*qS1; + q = 1.0f+z*qS1; s = sqrtf(z); r = p/q; w = r*s-pio2_lo; @@ -60,14 +59,14 @@ float acosf(float x) } else { /* x > 0.5 */ int32_t idf; - z = (one-x)*0.5f; + z = (1.0f-x)*0.5f; s = sqrtf(z); df = s; GET_FLOAT_WORD(idf,df); SET_FLOAT_WORD(df,idf&0xfffff000); c = (z-df*df)/(s+df); p = z*(pS0+z*(pS1+z*pS2)); - q = one+z*qS1; + q = 1.0f+z*qS1; r = p/q; w = r*s+c; return 2.0f*(df+w); |