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149 lines (137 loc) · 5.16 KB
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/* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Copyright:
* 2020-2021 Evan Nemerson <evan@nemerson.com>
*/
/* Support for complex math.
*
* We try to avoid inculding <complex> (in C++ mode) since it pulls in
* a *lot* of code. Unfortunately this only works for GNU modes (i.e.,
* -std=gnu++14 not -std=c++14) unless you pass -fext-numeric-literals,
* but there is no way (AFAICT) to detect that flag so we have to rely
* on __STRICT_ANSI__ to instead detect GNU mode.
*
* This header is separate from simde-math.h since there is a good
* chance it will pull in <complex>, and most of the time we don't need
* complex math (on x86 only SVML uses it). */
#if !defined(SIMDE_COMPLEX_H)
#define SIMDE_COMPLEX_H 1
#include "simde-math.h"
#if ( \
HEDLEY_HAS_BUILTIN(__builtin_creal) || \
HEDLEY_GCC_VERSION_CHECK(4,7,0) || \
HEDLEY_INTEL_VERSION_CHECK(13,0,0) \
) && (!defined(__e2k__)) && (!defined(__cplusplus) || !defined(__STRICT_ANSI__))
HEDLEY_DIAGNOSTIC_PUSH
SIMDE_DIAGNOSTIC_DISABLE_C99_EXTENSIONS_
typedef __complex__ float simde_cfloat32;
typedef __complex__ double simde_cfloat64;
HEDLEY_DIAGNOSTIC_POP
#define SIMDE_MATH_CMPLX(x, y) (HEDLEY_STATIC_CAST(double, x) + HEDLEY_STATIC_CAST(double, y) * (__extension__ 1.0j))
#define SIMDE_MATH_CMPLXF(x, y) (HEDLEY_STATIC_CAST(float, x) + HEDLEY_STATIC_CAST(float, y) * (__extension__ 1.0fj))
#if !defined(simde_math_creal)
#define simde_math_crealf(z) __builtin_crealf(z)
#endif
#if !defined(simde_math_crealf)
#define simde_math_creal(z) __builtin_creal(z)
#endif
#if !defined(simde_math_cimag)
#define simde_math_cimagf(z) __builtin_cimagf(z)
#endif
#if !defined(simde_math_cimagf)
#define simde_math_cimag(z) __builtin_cimag(z)
#endif
#if !defined(simde_math_cexp)
#define simde_math_cexp(z) __builtin_cexp(z)
#endif
#if !defined(simde_math_cexpf)
#define simde_math_cexpf(z) __builtin_cexpf(z)
#endif
#elif !defined(__cplusplus)
#include <complex.h>
#if !defined(HEDLEY_MSVC_VERSION)
typedef float _Complex simde_cfloat32;
typedef double _Complex simde_cfloat64;
#else
typedef _Fcomplex simde_cfloat32;
typedef _Dcomplex simde_cfloat64;
#endif
#if defined(HEDLEY_MSVC_VERSION)
#define SIMDE_MATH_CMPLX(x, y) ((simde_cfloat64) { (x), (y) })
#define SIMDE_MATH_CMPLXF(x, y) ((simde_cfloat32) { (x), (y) })
#elif defined(CMPLX) && defined(CMPLXF)
#define SIMDE_MATH_CMPLX(x, y) CMPLX(x, y)
#define SIMDE_MATH_CMPLXF(x, y) CMPLXF(x, y)
#else
#define SIMDE_MATH_CMPLX(x, y) (HEDLEY_STATIC_CAST(double, x) + HEDLEY_STATIC_CAST(double, y) * I)
#define SIMDE_MATH_CMPLXF(x, y) (HEDLEY_STATIC_CAST(float, x) + HEDLEY_STATIC_CAST(float, y) * I)
#endif
#if !defined(simde_math_creal)
#define simde_math_creal(z) creal(z)
#endif
#if !defined(simde_math_crealf)
#define simde_math_crealf(z) crealf(z)
#endif
#if !defined(simde_math_cimag)
#define simde_math_cimag(z) cimag(z)
#endif
#if !defined(simde_math_cimagf)
#define simde_math_cimagf(z) cimagf(z)
#endif
#if !defined(simde_math_cexp)
#define simde_math_cexp(z) cexp(z)
#endif
#if !defined(simde_math_cexpf)
#define simde_math_cexpf(z) cexpf(z)
#endif
#else
HEDLEY_DIAGNOSTIC_PUSH
#if defined(HEDLEY_MSVC_VERSION)
#pragma warning(disable:4530)
#endif
#include <complex>
HEDLEY_DIAGNOSTIC_POP
typedef std::complex<float> simde_cfloat32;
typedef std::complex<double> simde_cfloat64;
#define SIMDE_MATH_CMPLX(x, y) (std::complex<double>(x, y))
#define SIMDE_MATH_CMPLXF(x, y) (std::complex<float>(x, y))
#if !defined(simde_math_creal)
#define simde_math_creal(z) ((z).real())
#endif
#if !defined(simde_math_crealf)
#define simde_math_crealf(z) ((z).real())
#endif
#if !defined(simde_math_cimag)
#define simde_math_cimag(z) ((z).imag())
#endif
#if !defined(simde_math_cimagf)
#define simde_math_cimagf(z) ((z).imag())
#endif
#if !defined(simde_math_cexp)
#define simde_math_cexp(z) std::exp(z)
#endif
#if !defined(simde_math_cexpf)
#define simde_math_cexpf(z) std::exp(z)
#endif
#endif
#endif /* !defined(SIMDE_COMPLEX_H) */