diff options
Diffstat (limited to 'libc/math/s_csinh.c')
| -rw-r--r-- | libc/math/s_csinh.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/libc/math/s_csinh.c b/libc/math/s_csinh.c index 56bb25623..20edbd13f 100644 --- a/libc/math/s_csinh.c +++ b/libc/math/s_csinh.c @@ -42,7 +42,15 @@ __csinh (__complex__ double x) const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2); double sinix, cosix; - __sincos (__imag__ x, &sinix, &cosix); + if (__builtin_expect (icls != FP_SUBNORMAL, 1)) + { + __sincos (__imag__ x, &sinix, &cosix); + } + else + { + sinix = __imag__ x; + cosix = 1.0; + } if (fabs (__real__ x) > t) { @@ -109,7 +117,15 @@ __csinh (__complex__ double x) /* Imaginary part is finite. */ double sinix, cosix; - __sincos (__imag__ x, &sinix, &cosix); + if (__builtin_expect (icls != FP_SUBNORMAL, 1)) + { + __sincos (__imag__ x, &sinix, &cosix); + } + else + { + sinix = __imag__ x; + cosix = 1.0; + } __real__ retval = __copysign (HUGE_VAL, cosix); __imag__ retval = __copysign (HUGE_VAL, sinix); |