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      1 /*-
      2  * Copyright (c) 2001-2011 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  * $FreeBSD$
     27  */
     28 
     29 #ifndef _COMPLEX_H
     30 #define	_COMPLEX_H
     31 
     32 #include <sys/cdefs.h>
     33 
     34 #ifdef __GNUC__
     35 #if __STDC_VERSION__ < 199901
     36 #define	_Complex	__complex__
     37 #endif
     38 #define	_Complex_I	((float _Complex)1.0i)
     39 #endif
     40 
     41 #ifdef __generic
     42 _Static_assert(__generic(_Complex_I, float _Complex, 1, 0),
     43     "_Complex_I must be of type float _Complex");
     44 #endif
     45 
     46 #define	complex		_Complex
     47 #define	I		_Complex_I
     48 
     49 #if __ISO_C_VISIBLE >= 2011
     50 #ifdef __clang__
     51 #define	CMPLX(x, y)	((double complex){ x, y })
     52 #define	CMPLXF(x, y)	((float complex){ x, y })
     53 #define	CMPLXL(x, y)	((long double complex){ x, y })
     54 #elif __GNUC_PREREQ__(4, 7)
     55 #define	CMPLX(x, y)	__builtin_complex((double)(x), (double)(y))
     56 #define	CMPLXF(x, y)	__builtin_complex((float)(x), (float)(y))
     57 #define	CMPLXL(x, y)	__builtin_complex((long double)(x), (long double)(y))
     58 #endif
     59 #endif /* __ISO_C_VISIBLE >= 2011 */
     60 
     61 __BEGIN_DECLS
     62 #pragma GCC visibility push(default)
     63 
     64 double		cabs(double complex);
     65 float		cabsf(float complex);
     66 long double	cabsl(long double complex);
     67 double complex	cacos(double complex);
     68 float complex	cacosf(float complex);
     69 double complex	cacosh(double complex);
     70 float complex	cacoshf(float complex);
     71 double		carg(double complex);
     72 float		cargf(float complex);
     73 long double	cargl(long double complex);
     74 double complex	casin(double complex);
     75 float complex	casinf(float complex);
     76 double complex	casinh(double complex);
     77 float complex	casinhf(float complex);
     78 double complex	catan(double complex);
     79 float complex	catanf(float complex);
     80 double complex	catanh(double complex);
     81 float complex	catanhf(float complex);
     82 double complex	ccos(double complex);
     83 float complex	ccosf(float complex);
     84 double complex	ccosh(double complex);
     85 float complex	ccoshf(float complex);
     86 double complex	cexp(double complex);
     87 float complex	cexpf(float complex);
     88 double		cimag(double complex) __pure2;
     89 float		cimagf(float complex) __pure2;
     90 long double	cimagl(long double complex) __pure2;
     91 double complex	conj(double complex) __pure2;
     92 float complex	conjf(float complex) __pure2;
     93 long double complex
     94 		conjl(long double complex) __pure2;
     95 float complex	cprojf(float complex) __pure2;
     96 double complex	cproj(double complex) __pure2;
     97 long double complex
     98 		cprojl(long double complex) __pure2;
     99 double		creal(double complex) __pure2;
    100 float		crealf(float complex) __pure2;
    101 long double	creall(long double complex) __pure2;
    102 double complex	csin(double complex);
    103 float complex	csinf(float complex);
    104 double complex	csinh(double complex);
    105 float complex	csinhf(float complex);
    106 double complex	csqrt(double complex);
    107 float complex	csqrtf(float complex);
    108 long double complex
    109 		csqrtl(long double complex);
    110 double complex	ctan(double complex);
    111 float complex	ctanf(float complex);
    112 double complex	ctanh(double complex);
    113 float complex	ctanhf(float complex);
    114 
    115 #pragma GCC visibility pop
    116 __END_DECLS
    117 
    118 #endif /* _COMPLEX_H */
    119