ladybird/Userland/Libraries/LibC/complex.h
Emily Trau abc150085f LibC: Add missing sys/cdefs.h include
Some header files use __BEGIN_DECLS without including sys/cdefs.h.
This causes issues for C code that compiles against these headers,
which may occur with Ports.
2022-08-23 19:07:12 +01:00

45 lines
1.3 KiB
C

/*
* Copyright (c) 2022, Peter Elliott <pelliott@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
/* complex arithmetic
*
* https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/complex.h.html
*/
#pragma once
#include <stddef.h>
#include <sys/cdefs.h>
__BEGIN_DECLS
#define complex _Complex
#define _Complex_I (0.0f + 1.0fi)
#define I _Complex_I
#define CMPLX(x, y) ((double complex)__builtin_complex((double)x, (double)y))
#define CMPLXF(x, y) ((float complex)__builtin_complex((float)x, (float)y))
#define CMPLXL(x, y) ((long double complex)__builtin_complex((long double)x, (long double)y))
float crealf(float complex z);
double creal(double complex z);
long double creall(long double complex z);
double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);
// These are macro implementations of the above functions, so that they will always be inlined.
#define creal(z) ((double)__real__((double complex)z))
#define crealf(z) ((float)__real__((float complex)z))
#define creall(z) ((long double)__real__((long double complex)z))
#define cimag(z) ((double)__imag__((double complex)z))
#define cimagf(z) ((float)__imag__((float complex)z))
#define cimagl(z) ((long double)__imag__((long double complex)z))
__END_DECLS