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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [newlib/] [libc/] [sys/] [linux/] [cmath/] [s_ccosf.c] - Blame information for rev 158

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/* 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, 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>
#include "math_private.h"
 
__complex__ float
__ccosf (__complex__ float x)
{
  __complex__ float res;
 
  if (!isfinite (__real__ x) || __isnanf (__imag__ x))
    {
      if (__real__ x == 0.0 || __imag__ x == 0.0)
        {
          __real__ res = __nanf ("");
          __imag__ res = 0.0;
 
#ifdef FE_INVALID
          if (__isinff (__real__ x))
            feraiseexcept (FE_INVALID);
#endif
        }
      else if (__isinff (__imag__ x))
        {
          __real__ res = HUGE_VALF;
          __imag__ res = __nanf ("");
 
#ifdef FE_INVALID
          if (__isinff (__real__ x))
            feraiseexcept (FE_INVALID);
#endif
        }
      else
        {
          __real__ res = __nanf ("");
          __imag__ res = __nanf ("");
 
#ifdef FE_INVALID
          if (isfinite (__imag__ x))
            feraiseexcept (FE_INVALID);
#endif
        }
    }
  else
    {
      __complex__ float y;
 
      __real__ y = -__imag__ x;
      __imag__ y = __real__ x;
 
      res = __ccoshf (y);
    }
 
  return res;
}
weak_alias (__ccosf, ccosf)

Line No.	Rev	Author	Line
1	148	jeremybenn	`/* Return cosine of complex float value.`
2			`Copyright (C) 1997 Free Software Foundation, Inc.`
3			`This file is part of the GNU C Library.`
4			`Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.`
5
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.`
10
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.`
15
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. */`
20
21			`#include <complex.h>`
22			`#include <fenv.h>`
23			`#include <math.h>`
24			`#include "math_private.h"`
25
26			`__complex__ float`
27			`__ccosf (__complex__ float x)`
28			`{`
29			`__complex__ float res;`
30
31			`if (!isfinite (__real__ x) \|\| __isnanf (__imag__ x))`
32			`{`
33			`if (__real__ x == 0.0 \|\| __imag__ x == 0.0)`
34			`{`
35			`__real__ res = __nanf ("");`
36			`__imag__ res = 0.0;`
37
38			`#ifdef FE_INVALID`
39			`if (__isinff (__real__ x))`
40			`feraiseexcept (FE_INVALID);`
41			`#endif`
42			`}`
43			`else if (__isinff (__imag__ x))`
44			`{`
45			`__real__ res = HUGE_VALF;`
46			`__imag__ res = __nanf ("");`
47
48			`#ifdef FE_INVALID`
49			`if (__isinff (__real__ x))`
50			`feraiseexcept (FE_INVALID);`
51			`#endif`
52			`}`
53			`else`
54			`{`
55			`__real__ res = __nanf ("");`
56			`__imag__ res = __nanf ("");`
57
58			`#ifdef FE_INVALID`
59			`if (isfinite (__imag__ x))`
60			`feraiseexcept (FE_INVALID);`
61			`#endif`
62			`}`
63			`}`
64			`else`
65			`{`
66			`__complex__ float y;`
67
68			`__real__ y = -__imag__ x;`
69			`__imag__ y = __real__ x;`
70
71			`res = __ccoshf (y);`
72			`}`
73
74			`return res;`
75			`}`
76			`weak_alias (__ccosf, ccosf)`

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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [newlib/] [libc/] [sys/] [linux/] [cmath/] [s_ccosf.c] - Blame information for rev 158