* MAINTAINERS (m32c, msp43, rl78, libiberty, build): Remove myself
[official-gcc.git] / libquadmath / math / cacosq.c
blob3c257b029bffcde510fb5d7bb8a458de2feb4606
1 /* Return cosine of complex __float128 value.
2 Copyright (C) 1997, 1998 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
21 #include "quadmath-imp.h"
23 __complex128
24 cacosq (__complex128 x)
26 __complex128 y;
27 __complex128 res;
29 y = casinq (x);
31 __real__ res = M_PI_2q - __real__ y;
32 __imag__ res = -__imag__ y;
34 return res;