include/complex.h

   1 /*-
   2  * Copyright (c) 2001 The FreeBSD Project.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/include/complex.h,v 1.1.2.1 2001/11/23 16:16:18 dd Exp $
  27  * $DragonFly: src/include/complex.h,v 1.3 2003/11/14 01:01:43 dillon Exp $
  28  */
  29
  30 #ifndef _COMPLEX_H
  31 #define _COMPLEX_H
  32
  33 #ifdef __GNUC__
  34 #define _Complex        __complex__
  35 #define _Complex_I      1.0fi
  36 #endif
  37
  38 #define complex         _Complex
  39 #define I               _Complex_I
  40
  41 #include <sys/cdefs.h>
  42
  43 __BEGIN_DECLS
  44
  45 double  cabs (double complex);
  46 float   cabsf (float complex);
  47 double  cimag (double complex);
  48 float   cimagf (float complex);
  49 double  creal (double complex);
  50 float   crealf (float complex);
  51
  52 __END_DECLS
  53
  54 #ifdef __GNUC__
  55 #define cimag(z)        (__imag__ (z))
  56 #define cimagf(z)       (__imag__ (z))
  57 #define creal(z)        (__real__ (z))
  58 #define crealf(z)       (__real__ (z))
  59 #endif
  60
  61 #endif /* _COMPLEX_H */