/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2001-2011 The FreeBSD Project.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _COMPLEX_H
#define _COMPLEX_H

#include <sys/cdefs.h>

#ifdef __GNUC__
#if __STDC_VERSION__ < 199901
#define _Complex        __complex__
#endif
#define _Complex_I      ((float _Complex)1.0i)
#endif

#ifdef __generic
_Static_assert(__generic(_Complex_I, float _Complex, 1, 0),
    "_Complex_I must be of type float _Complex");
#endif

#define complex         _Complex
#define I               _Complex_I

#if __ISO_C_VISIBLE >= 2011
#ifdef __clang__
#define CMPLX(x, y)     ((double complex){ x, y })
#define CMPLXF(x, y)    ((float complex){ x, y })
#define CMPLXL(x, y)    ((long double complex){ x, y })
#elif __GNUC_PREREQ__(4, 7)
#define CMPLX(x, y)     __builtin_complex((double)(x), (double)(y))
#define CMPLXF(x, y)    __builtin_complex((float)(x), (float)(y))
#define CMPLXL(x, y)    __builtin_complex((long double)(x), (long double)(y))
#endif
#endif /* __ISO_C_VISIBLE >= 2011 */

__BEGIN_DECLS

double          cabs(double complex);
float           cabsf(float complex);
long double     cabsl(long double complex);
double complex  cacos(double complex);
float complex   cacosf(float complex);
double complex  cacosh(double complex);
float complex   cacoshf(float complex);
long double complex
                cacoshl(long double complex);
long double complex
                cacosl(long double complex);
double          carg(double complex);
float           cargf(float complex);
long double     cargl(long double complex);
double complex  casin(double complex);
float complex   casinf(float complex);
double complex  casinh(double complex);
float complex   casinhf(float complex);
long double complex
                casinhl(long double complex);
long double complex
                casinl(long double complex);
double complex  catan(double complex);
float complex   catanf(float complex);
double complex  catanh(double complex);
float complex   catanhf(float complex);
long double complex
                catanhl(long double complex);
long double complex
                catanl(long double complex);
double complex  ccos(double complex);
float complex   ccosf(float complex);
double complex  ccosh(double complex);
float complex   ccoshf(float complex);
double complex  cexp(double complex);
float complex   cexpf(float complex);
long double complex
                cexpl(long double complex);
double          cimag(double complex) __pure2;
float           cimagf(float complex) __pure2;
long double     cimagl(long double complex) __pure2;
double complex  clog(double complex);
float complex   clogf(float complex);
long double complex
                clogl(long double complex);
double complex  conj(double complex) __pure2;
float complex   conjf(float complex) __pure2;
long double complex
                conjl(long double complex) __pure2;
float complex   cpowf(float complex, float complex);
double complex  cpow(double complex, double complex);
long double complex
                cpowl(long double complex, long double complex);
float complex   cprojf(float complex) __pure2;
double complex  cproj(double complex) __pure2;
long double complex
                cprojl(long double complex) __pure2;
double          creal(double complex) __pure2;
float           crealf(float complex) __pure2;
long double     creall(long double complex) __pure2;
double complex  csin(double complex);
float complex   csinf(float complex);
double complex  csinh(double complex);
float complex   csinhf(float complex);
double complex  csqrt(double complex);
float complex   csqrtf(float complex);
long double complex
                csqrtl(long double complex);
double complex  ctan(double complex);
float complex   ctanf(float complex);
double complex  ctanh(double complex);
float complex   ctanhf(float complex);

__END_DECLS

#endif /* _COMPLEX_H */