OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [cmath/] [s_casinf.c] - Blame information for rev 258

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 207 jeremybenn
/* Return arc sine 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 <math.h>
23
#include "math_private.h"
24
 
25
 
26
__complex__ float
27
__casinf (__complex__ float x)
28
{
29
  __complex__ float res;
30
 
31
  if (isnan (__real__ x) || isnan (__imag__ x))
32
    {
33
      if (__real__ x == 0.0)
34
        {
35
          res = x;
36
        }
37
      else if (__isinff (__real__ x) || __isinff (__imag__ x))
38
        {
39
          __real__ res = __nanf ("");
40
          __imag__ res = __copysignf (HUGE_VALF, __imag__ x);
41
        }
42
      else
43
        {
44
          __real__ res = __nanf ("");
45
          __imag__ res = __nanf ("");
46
        }
47
    }
48
  else
49
    {
50
      __complex__ float y;
51
 
52
      __real__ y = -__imag__ x;
53
      __imag__ y = __real__ x;
54
 
55
      y = __casinhf (y);
56
 
57
      __real__ res = __imag__ y;
58
      __imag__ res = -__real__ y;
59
    }
60
 
61
  return res;
62
}
63
weak_alias (__casinf, casinf)

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.