1 /* Complex cosine hyperbole function. m68k fpu version
2 Copyright (C) 1997 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 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 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #define __LIBC_INTERNAL_MATH_INLINES
29 #define float_type double
32 #define CONCATX(a,b) __CONCAT(a,b)
33 #define s(name) CONCATX(name,SUFF)
34 #define m81(func) __m81_u(s(func))
36 __complex__ float_type
37 s(__ccosh) (__complex__ float_type x)
39 __complex__ float_type retval;
40 unsigned long ix_cond = __m81_test (__imag__ x);
42 if ((ix_cond & (__M81_COND_INF|__M81_COND_NAN)) == 0)
44 /* Imaginary part is finite. */
45 float_type sin_ix, cos_ix;
47 __asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix)
49 __real__ retval = cos_ix * m81(__ieee754_cosh) (__real__ x);
50 if (ix_cond & __M81_COND_ZERO)
51 __imag__ retval = (m81(__signbit) (__real__ x)
52 ? -__imag__ x : __imag__ x);
54 __imag__ retval = sin_ix * m81(__ieee754_sinh) (__real__ x);
58 unsigned long rx_cond = __m81_test (__real__ x);
60 if (rx_cond & __M81_COND_ZERO)
62 __real__ retval = __imag__ x - __imag__ x;
63 __imag__ retval = __real__ x;
67 if (rx_cond & __M81_COND_INF)
68 __real__ retval = s(fabs) (__real__ x);
70 __real__ retval = 0.0/0.0;
71 __imag__ retval = __imag__ x - __imag__ x;
77 #define weak_aliasx(a,b) weak_alias(a,b)
78 weak_aliasx (s(__ccosh), s(ccosh))