From 6d3bf1993190edc502d01e8ca42c4482b20a5b6c Mon Sep 17 00:00:00 2001 From: Liubov Dmitrieva Date: Tue, 25 Sep 2012 20:41:17 +0200 Subject: Fix wrong ussage of sincos for subnormal arguments --- math/s_cexp.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'math/s_cexp.c') diff --git a/math/s_cexp.c b/math/s_cexp.c index 1d7a5a2..d0a95ba 100644 --- a/math/s_cexp.c +++ b/math/s_cexp.c @@ -39,7 +39,15 @@ __cexp (__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 (__real__ x > t) { @@ -95,7 +103,15 @@ __cexp (__complex__ double x) { 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 (value, cosix); __imag__ retval = __copysign (value, sinix); -- cgit v1.1