/* Return cosine of complex float 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, see <http://www.gnu.org/licenses/>. */ #include <complex.h> #include <math.h> __complex__ float __cacosf (__complex__ float x) { __complex__ float y; __complex__ float res; y = __casinf (x); __real__ res = (float) M_PI_2 - __real__ y; __imag__ res = -__imag__ y; return res; } #ifndef __cacosf weak_alias (__cacosf, cacosf) #endif