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Fix wrong ussage of sincos for subnormal arguments

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This commit is contained in:
Liubov Dmitrieva
2012-09-25 20:41:17 +02:00
committed by Andreas Jaeger
parent 203e56032f
commit 6d3bf19931
19 changed files with 296 additions and 30 deletions
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20
math/s_csin.c
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@ -42,7 +42,15 @@ __csin (__complex__ double x)
const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2);
double sinix, cosix;
__sincos (__real__ x, &sinix, &cosix);
if (__builtin_expect (rcls != FP_SUBNORMAL, 1))
{
__sincos (__real__ x, &sinix, &cosix);
}
else
{
sinix = __real__ x;
cosix = 1.0;
}
if (fabs (__imag__ x) > t)
{
@ -115,7 +123,15 @@ __csin (__complex__ double x)
/* Real part is finite. */
double sinix, cosix;
__sincos (__real__ x, &sinix, &cosix);
if (__builtin_expect (rcls != FP_SUBNORMAL, 1))
{
__sincos (__real__ x, &sinix, &cosix);
}
else
{
sinix = __real__ x;
cosix = 1.0;
}
__real__ retval = __copysign (HUGE_VAL, sinix);
__imag__ retval = __copysign (HUGE_VAL, cosix);