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

/*
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*/

#include "complex_test.h"

/**
 * Annex G.6.3.2 The clog functions
 * clog(conj(z)) = conj(clog(z)).
 * clog(-0 + i0) returns -inf + ipi and raises the divide-by-zero floating-point exception.
 * clog(+0 + i0) returns -inf + i0 and raises the divide-by-zero floating-point exception.
 * clog(x + i inf) returns +inf + ipi /2, for finite x.
 * clog(x + iNaN) returns NaN + iNaN and optionally raises the invalid floating-point exception, for finite x.
 * clog(-inf + iy) returns +inf + ipi , for finite positive-signed y.
 * clog(+inf + iy) returns +inf + i0, for finite positive-signed y.
 * clog(-inf + i inf) returns +inf + i3pi /4.
 * clog(+inf + i inf) returns +inf + ipi /4.
 * clog(+/-inf + iNaN) returns +inf + iNaN.
 * clog(NaN + iy) returns NaN + iNaN and optionally raises the invalid floating-point exception, for finite y.
 * clog(NaN + i inf) returns +inf + iNaN.
 * clog(NaN + iNaN) returns NaN + iNaN.
 */

int __FLT_ABI(test_function_clog) () 
{
  _DEFINE_DEFAULT_TEST_FUNCTION (clog, FUNC_BEHAVIOR_CONJ);

  DEFAULT_TESTS_START

  DEFINE_TEST (  __FLT_CST(-0.0),   __FLT_CST(0.0), -INFINITY,       __FLT_PI, 0, 0)
  DEFINE_TEST (  __FLT_CST( 0.0),   __FLT_CST(0.0), -INFINITY, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (__FLT_CST( 42.42),         INFINITY,  INFINITY,     __FLT_PI_2, 0, 0)
  DEFINE_TEST (__FLT_CST(   0.0),         INFINITY,  INFINITY,     __FLT_PI_2, 0, 0)
  DEFINE_TEST (__FLT_CST(-42.42),         INFINITY,  INFINITY,     __FLT_PI_2, 0, 0)
  DEFINE_TEST (__FLT_CST( 42.42),        __FLT_NAN, __FLT_NAN,      __FLT_NAN, 0, 0)
  DEFINE_TEST (__FLT_CST(   0.0),        __FLT_NAN, __FLT_NAN,      __FLT_NAN, 0, 0)
  DEFINE_TEST (__FLT_CST(-42.42),        __FLT_NAN, __FLT_NAN,      __FLT_NAN, 0, 0)
  DEFINE_TEST (        -INFINITY,   __FLT_CST(0.0),  INFINITY,       __FLT_PI, 0, 0)
  DEFINE_TEST (         INFINITY,   __FLT_CST(0.0),  INFINITY, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (        -INFINITY, __FLT_CST(42.42),  INFINITY,       __FLT_PI, 0, 0)
  DEFINE_TEST (         INFINITY, __FLT_CST(42.42),  INFINITY, __FLT_CST(0.0), 0, 0)
  DEFINE_TEST (        -INFINITY,         INFINITY,  INFINITY,   __FLT_PI_3_4, 0, 0)
  DEFINE_TEST (         INFINITY,         INFINITY,  INFINITY,     __FLT_PI_4, 0, 0)
  DEFINE_TEST (        -INFINITY,        __FLT_NAN,  INFINITY,      __FLT_NAN, 0, 0)
  DEFINE_TEST (         INFINITY,        __FLT_NAN,  INFINITY,      __FLT_NAN, 0, 0)
  DEFINE_TEST (        __FLT_NAN,   __FLT_CST(0.0), __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,  INFINITY,      __FLT_NAN, 0, 0)
  DEFINE_TEST (        __FLT_NAN,        __FLT_NAN, __FLT_NAN,      __FLT_NAN, 0, 0)

  TESTS_END

  return RUN_DEFAULT_TESTS(clog);
}