third-party-mirror / mingw-w64 / 063fb9eda93b76f6715cee4894a2dc19323f13bd / . / mingw-w64-crt / testcases / complex / ctan.c

/* | |

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*/ | |

#include "complex_test.h" | |

/** | |

* Annex G.6 ctan(z) = -i ctanh(iz) | |

* Reference: Annex G.6.2.6 The ctanh functions | |

* ctanh(conj(z)) = conj(ctanh(z))and ctanh is odd. | |

* ctanh(+0 + i0) returns +0 + i0. | |

* ctanh(x + i inf) returns NaN + iNaN and raises the invalid floating-point exception, for finite x. | |

* ctanh(x + iNaN) returns NaN + iNaN and optionally raises the invalid floating-point exception, for finite x. | |

* ctanh(+inf + iy) returns 1 + i0 sin(2y), for positive-signed finite y. | |

* ctanh(+inf + i inf) returns 1 +/- i0 (where the sign of the imaginary part of the result is unspecified). | |

* ctanh(+inf + iNaN) returns 1 +/- i0 (where the sign of the imaginary part of the result is unspecified). | |

* ctanh(NaN + i0) returns NaN + i0. | |

* ctanh(NaN + iy) returns NaN + iNaN and optionally raises the invalid floating-point exception, for all nonzero numbers y. | |

* ctanh(NaN + iNaN) returns NaN + iNaN. | |

*/ | |

int __FLT_ABI(test_function_ctan) () | |

{ | |

/* sin (2*42.42) is negative */ | |

_DEFINE_DEFAULT_TEST_FUNCTION (ctan, FUNC_BEHAVIOR_CONJ | FUNC_BEHAVIOR_ODD); | |

DEFAULT_TESTS_START | |

DEFINE_TEST ( __FLT_CST(0.0), __FLT_CST(0.0), __FLT_CST(0.0), __FLT_CST(0.0), 0, 0) | |

DEFINE_TEST ( __FLT_CST(0.0), INFINITY, __FLT_CST(0.0), __FLT_CST(1.0), 0, 0) | |

DEFINE_TEST ( __FLT_CST(0.0), __FLT_NAN, __FLT_CST(0.0), __FLT_NAN, 0, 0) | |

DEFINE_TEST (__FLT_CST(42.42), __FLT_NAN, __FLT_NAN, __FLT_NAN, 0, 0) | |

DEFINE_TEST (__FLT_CST(42.42), INFINITY, __FLT_CST(-0.0), __FLT_CST(1.0), 0, 0) | |

DEFINE_TEST ( INFINITY, __FLT_CST(42.42), __FLT_NAN, __FLT_NAN, 0, 0) | |

DEFINE_TEST ( INFINITY, INFINITY, __FLT_CST(0.0), __FLT_CST(1.0), 1, 0) | |

DEFINE_TEST ( INFINITY, __FLT_NAN, __FLT_NAN, __FLT_NAN, 0, 0) | |

DEFINE_TEST ( __FLT_NAN, __FLT_CST(42.42), __FLT_NAN, __FLT_NAN, 0, 0) | |

DEFINE_TEST ( __FLT_NAN, INFINITY, __FLT_CST(0.0), __FLT_CST(1.0), 1, 0) | |

DEFINE_TEST ( __FLT_NAN, __FLT_NAN, __FLT_NAN, __FLT_NAN, 0, 0) | |

TESTS_END | |

return RUN_DEFAULT_TESTS(ctan); | |

} |