diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_clog.c')
-rw-r--r-- | sysdeps/libm-ieee754/s_clog.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/sysdeps/libm-ieee754/s_clog.c b/sysdeps/libm-ieee754/s_clog.c deleted file mode 100644 index c14a734759..0000000000 --- a/sysdeps/libm-ieee754/s_clog.c +++ /dev/null @@ -1,65 +0,0 @@ -/* Compute complex natural logarithm. - Copyright (C) 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <complex.h> -#include <math.h> - -#include "math_private.h" - - -__complex__ double -__clog (__complex__ double x) -{ - __complex__ double result; - int rcls = fpclassify (__real__ x); - int icls = fpclassify (__imag__ x); - - if (rcls == FP_ZERO && icls == FP_ZERO) - { - /* Real and imaginary part are 0.0. */ - __imag__ result = signbit (__real__ x) ? M_PI : 0.0; - __imag__ result = __copysign (__imag__ result, __imag__ x); - /* Yes, the following line raises an exception. */ - __real__ result = -1.0 / fabs (__real__ x); - } - else if (rcls != FP_NAN && icls != FP_NAN) - { - /* Neither real nor imaginary part is NaN. */ - __real__ result = __ieee754_log (__ieee754_hypot (__real__ x, - __imag__ x)); - __imag__ result = __ieee754_atan2 (__imag__ x, __real__ x); - } - else - { - __imag__ result = __nan (""); - if (rcls == FP_INFINITE || icls == FP_INFINITE) - /* Real or imaginary part is infinite. */ - __real__ result = HUGE_VAL; - else - __real__ result = __nan (""); - } - - return result; -} -weak_alias (__clog, clog) -#ifdef NO_LONG_DOUBLE -strong_alias (__clog, __clogl) -weak_alias (__clog, clogl) -#endif |