Quelle simde-complex.h Sprache: C

/* 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(__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) */

quality91%

¤ Dauer der Verarbeitung: 0.4 Sekunden ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.