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