third-party-mirror / mingw-w64 / 256313314c6358378881191149f16ec8f762ea9c / . / mingw-w64-crt / complex / cexp.def.h

/* | |

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Disclaimer | |

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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |

OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |

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*/ | |

__FLT_TYPE __complex__ __cdecl | |

__FLT_ABI(cexp) (__FLT_TYPE __complex__ z) | |

{ | |

__complex__ __FLT_TYPE ret; | |

__FLT_TYPE s_x, c_x, exp_val, v; | |

int r_class = fpclassify (__real__ z); | |

int i_class = fpclassify (__imag__ z); | |

if (r_class == FP_INFINITE) | |

{ | |

if (i_class != FP_NAN && i_class != FP_INFINITE) | |

{ | |

v = signbit (__real__ z) ? __FLT_CST(0.0) : __FLT_HUGE_VAL; | |

if (i_class == FP_ZERO) | |

{ | |

__real__ ret = v; | |

__imag__ ret = __imag__ z; | |

return ret; | |

} | |

__FLT_ABI(sincos) (__imag__ z, &s_x, &c_x); | |

__real__ ret = __FLT_ABI(copysign) (v, c_x); | |

__imag__ ret = __FLT_ABI(copysign) (v, s_x); | |

return ret; | |

} | |

if (signbit (__real__ z) == 0) | |

{ | |

__real__ ret = __FLT_HUGE_VAL; | |

__imag__ ret = __FLT_NAN; | |

} | |

else | |

{ | |

__real__ ret = __FLT_CST(0.0); | |

__imag__ ret = __FLT_ABI(copysign) (__FLT_CST(0.0), __imag__ z); | |

} | |

return ret; | |

} | |

if (r_class == FP_NAN || i_class == FP_NAN || i_class == FP_INFINITE) | |

{ | |

__real__ ret = __FLT_NAN; | |

if (i_class == FP_ZERO) | |

__imag__ ret = __FLT_ABI(copysign) (__FLT_CST(0.0), __imag__ z); | |

else | |

__imag__ ret = __FLT_NAN; | |

return ret; | |

} | |

exp_val = __FLT_ABI(exp) (__real__ z); | |

__FLT_ABI(sincos) (__imag__ z, &s_x, &c_x); | |

if (isfinite (exp_val)) | |

{ | |

__real__ ret = exp_val * c_x; | |

__imag__ ret = exp_val * s_x; | |

} | |

else | |

{ | |

__real__ ret = __FLT_ABI(copysign) (exp_val, c_x); | |

__imag__ ret = __FLT_ABI(copysign) (exp_val, s_x); | |

} | |

return ret; | |

} |