diff options
Diffstat (limited to 'libc/math/s_ccos.c')
| -rw-r--r-- | libc/math/s_ccos.c | 51 |
1 files changed, 6 insertions, 45 deletions
diff --git a/libc/math/s_ccos.c b/libc/math/s_ccos.c index 1b244d707..4612eb33c 100644 --- a/libc/math/s_ccos.c +++ b/libc/math/s_ccos.c @@ -1,5 +1,5 @@ /* Return cosine of complex double value. - Copyright (C) 1997 Free Software Foundation, Inc. + Copyright (C) 1997, 2011 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. @@ -21,57 +21,18 @@ #include <complex.h> #include <fenv.h> #include <math.h> +#include <math_private.h> __complex__ double __ccos (__complex__ double x) { - __complex__ double res; + __complex__ double y; - if (!isfinite (__real__ x) || __isnan (__imag__ x)) - { - if (__real__ x == 0.0 || __imag__ x == 0.0) - { - __real__ res = __nan (""); - __imag__ res = 0.0; + __real__ y = -__imag__ x; + __imag__ y = __real__ x; -#ifdef FE_INVALID - if (__isinf (__real__ x)) - feraiseexcept (FE_INVALID); -#endif - } - else if (__isinf (__imag__ x)) - { - __real__ res = HUGE_VAL; - __imag__ res = __nan (""); - -#ifdef FE_INVALID - if (__isinf (__real__ x)) - feraiseexcept (FE_INVALID); -#endif - } - else - { - __real__ res = __nan (""); - __imag__ res = __nan (""); - -#ifdef FE_INVALID - if (isfinite (__imag__ x)) - feraiseexcept (FE_INVALID); -#endif - } - } - else - { - __complex__ double y; - - __real__ y = -__imag__ x; - __imag__ y = __real__ x; - - res = __ccosh (y); - } - - return res; + return __ccosh (y); } weak_alias (__ccos, ccos) #ifdef NO_LONG_DOUBLE |