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author | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2004-12-22 20:10:10 +0000 |
commit | a334319f6530564d22e775935d9c91663623a1b4 (patch) | |
tree | b5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/generic/s_ccosl.c | |
parent | 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff) | |
download | glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz |
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/generic/s_ccosl.c')
-rw-r--r-- | sysdeps/generic/s_ccosl.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/sysdeps/generic/s_ccosl.c b/sysdeps/generic/s_ccosl.c new file mode 100644 index 0000000000..4ebe2c347d --- /dev/null +++ b/sysdeps/generic/s_ccosl.c @@ -0,0 +1,76 @@ +/* Return cosine of complex long double value. + 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <complex.h> +#include <fenv.h> +#include <math.h> + + +__complex__ long double +__ccosl (__complex__ long double x) +{ + __complex__ long double res; + + if (!isfinite (__real__ x) || __isnanl (__imag__ x)) + { + if (__real__ x == 0.0 || __imag__ x == 0.0) + { + __real__ res = __nanl (""); + __imag__ res = 0.0; + +#ifdef FE_INVALID + if (__isinfl (__real__ x)) + feraiseexcept (FE_INVALID); +#endif + } + else if (__isinfl (__imag__ x)) + { + __real__ res = HUGE_VALL; + __imag__ res = __nanl (""); + +#ifdef FE_INVALID + if (__isinfl (__real__ x)) + feraiseexcept (FE_INVALID); +#endif + } + else + { + __real__ res = __nanl (""); + __imag__ res = __nanl (""); + +#ifdef FE_INVALID + if (isfinite (__imag__ x)) + feraiseexcept (FE_INVALID); +#endif + } + } + else + { + __complex__ long double y; + + __real__ y = -__imag__ x; + __imag__ y = __real__ x; + + res = __ccoshl (y); + } + + return res; +} +weak_alias (__ccosl, ccosl) |