diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_cexpf.c')
| -rw-r--r-- | sysdeps/libm-ieee754/s_cexpf.c | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/sysdeps/libm-ieee754/s_cexpf.c b/sysdeps/libm-ieee754/s_cexpf.c index 261b18cb3a..c5d8f0cc07 100644 --- a/sysdeps/libm-ieee754/s_cexpf.c +++ b/sysdeps/libm-ieee754/s_cexpf.c @@ -33,8 +33,16 @@ __cexpf (__complex__ float x) { float exp_val = __expf (__real__ x); - __real__ retval = exp_val * __cosf (__imag__ x); - __imag__ retval = exp_val * __sinf (__imag__ x); + if (isfinite (exp_val)) + { + __real__ retval = exp_val * __cosf (__imag__ x); + __imag__ retval = exp_val * __sinf (__imag__ x); + } + else + { + __real__ retval = __copysignf (exp_val, __cosf (__imag__ x)); + __imag__ retval = __copysignf (exp_val, __sinf (__imag__ x)); + } } else { @@ -48,14 +56,17 @@ __cexpf (__complex__ float x) { if (isfinite (__imag__ x)) { - if (signbit (__real__ x) == 0 && __imag__ x == 0.0) - retval = HUGE_VALF; + float value = signbit (__real__ x) ? 0.0 : HUGE_VALF; + + if (__imag__ x == 0.0) + { + __real__ retval = value; + __imag__ retval = __imag__ x; + } else { - float value = signbit (__real__ x) ? 0.0 : HUGE_VALF; - - __real__ retval = value * __cosf (__imag__ x); - __imag__ retval = value * __sinf (__imag__ x); + __real__ retval = __copysignf (value, __cosf (__imag__ x)); + __imag__ retval = __copysignf (value, __sinf (__imag__ x)); } } else if (signbit (__real__ x) == 0) @@ -64,7 +75,10 @@ __cexpf (__complex__ float x) __imag__ retval = __nanf (""); } else - retval = 0.0; + { + __real__ retval = 0.0; + __imag__ retval = __copysignf (0.0, __imag__ x); + } } else { |