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(__cproj): Fix bug: NaN + i NaN returns now NaN + i NaN.

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This commit is contained in:
Ulrich Drepper 1999-10-19 03:31:10 +00:00
parent 23402ab9b6
commit 77a9b86190
1 changed files with 4 additions and 2 deletions
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6
sysdeps/libm-ieee754/s_cproj.c
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@ -1,5 +1,5 @@
/* Compute projection of complex double value to Riemann sphere.
Copyright (C) 1997 Free Software Foundation, Inc.
Copyright (C) 1997, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@ -27,7 +27,9 @@ __cproj (__complex__ double x)
{
__complex__ double res;
if (!isfinite (__real__ x) || !isfinite (__imag__ x))
if (isnan (__real__ x) && isnan (__imag__ x))
return x;
else if (!isfinite (__real__ x) || !isfinite (__imag__ x))
{
__real__ res = INFINITY;
__imag__ res = __copysign (0.0, __imag__ x);