diff options
Diffstat (limited to 'lib/msun/src/s_cosf.c')
| -rw-r--r-- | lib/msun/src/s_cosf.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/msun/src/s_cosf.c b/lib/msun/src/s_cosf.c index 18e0299..dd8a759 100644 --- a/lib/msun/src/s_cosf.c +++ b/lib/msun/src/s_cosf.c @@ -20,8 +20,6 @@ static char rcsid[] = "$FreeBSD$"; #include "math.h" #include "math_private.h" -static const float one=1.0; - float cosf(float x) { @@ -32,7 +30,11 @@ cosf(float x) /* |x| ~< pi/4 */ ix &= 0x7fffffff; - if(ix <= 0x3f490fd8) return __kernel_cosf(x,z); + if(ix <= 0x3f490fd8) { + if(ix<0x39800000) /* if x < 2**-12 */ + if(((int)x)==0) return 1.0; /* generate inexact */ + return __kernel_cosf(x,z); + } /* cos(Inf or NaN) is NaN */ else if (ix>=0x7f800000) return x-x; |
