mingw-w64-crt/testcases/complex/catan.c

/*
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#include "complex_test.h"

/**
 * Annex G.6 catan(z) = -i catan(iz)
 * Reference: Annex G.6.2.3 The catanh functions
 * catanh(conj(z)) = conj(catanh(z)) and catanh is odd.
 * catanh(+0 + i0) returns +0 + i0.
 * catanh(+0 + iNaN) returns +0 + iNaN.
 * catanh(+1 + i0) returns +inf + i0 and raises the divide-by-zero floating-point exception.
 * catanh(x + i inf) returns +0 + ipi /2, for finite positive-signed x.
 * catanh(x + iNaN) returns NaN + iNaN and optionally raises the invalid floating-point exception, for nonzero finite x.
 * catanh(+inf + iy) returns +0 + ipi /2, for finite positive-signed y.
 * catanh(+inf + i inf) returns +0 + ipi /2.
 * catanh(+inf + iNaN) returns +0 + iNaN.
 * catanh(NaN + iy) returns NaN + iNaN and optionally raises the invalid floating-point exception, for finite y.
 * catanh(NaN + i inf) returns +/-0 + ipi /2 (where the sign of the real part of the result is unspecified).
 * catanh(NaN + iNaN) returns NaN + iNaN.
 */

int __FLT_ABI(test_function_catan) () 
{
  _DEFINE_DEFAULT_TEST_FUNCTION (catan, 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),   __FLT_CST(1.0), __FLT_CST(0.0),       INFINITY, 0, 0)
  DEFINE_TEST (  __FLT_CST(0.0),         INFINITY,     __FLT_PI_2, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (  __FLT_CST(0.0),        __FLT_NAN,      __FLT_NAN,      __FLT_NAN, 0, 0)
  DEFINE_TEST (__FLT_CST(42.42),         INFINITY,     __FLT_PI_2, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (__FLT_CST(42.42),        __FLT_NAN,      __FLT_NAN,      __FLT_NAN, 0, 0)
  DEFINE_TEST (        INFINITY, __FLT_CST(42.42),     __FLT_PI_2, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (        INFINITY,         INFINITY,     __FLT_PI_2, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (        INFINITY,        __FLT_NAN,     __FLT_PI_2, __FLT_CST(0.0), 0, 1)
  DEFINE_TEST (       __FLT_NAN,   __FLT_CST(0.0),      __FLT_NAN, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (       __FLT_NAN, __FLT_CST(42.42),      __FLT_NAN,      __FLT_NAN, 0, 0)
  DEFINE_TEST (       __FLT_NAN,         INFINITY,      __FLT_NAN, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (       __FLT_NAN,        __FLT_NAN,      __FLT_NAN,      __FLT_NAN, 0, 0)

  TESTS_END

  return RUN_DEFAULT_TESTS(catan);
}