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

/*
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 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY EXPRESSED
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*/

#include "complex_test.h"

/**
 * Section 7.3.9.5 The creal functions.
 * creal(z) returns the real part of z, as a real,
 * where z = creal(z) + cimag(z) * I
 *
 * We'll check finite real, finite imag;
 * finite real, infinite imag;
 * infinite real finite imag;
 * with NaNs.
 */
  
int __FLT_ABI(test_function_creal) ()
{
  _DEFINE_DEFAULT_TEST_FUNCTION_REAL (creal, 0);

  DEFAULT_TESTS_START

  DEFINE_TEST (  -__FLT_CST(0.0), -__FLT_CST(42.42), -__FLT_CST(0.0), __FLT_NAN, 0, 0)
  DEFINE_TEST (   __FLT_CST(0.0), -__FLT_CST(42.42),  __FLT_CST(0.0), __FLT_NAN, 0, 0)
  DEFINE_TEST (  -__FLT_CST(0.0),  __FLT_CST(42.42), -__FLT_CST(0.0), __FLT_NAN, 0, 0)
  DEFINE_TEST (   __FLT_CST(0.0),  __FLT_CST(42.42),  __FLT_CST(0.0), __FLT_NAN, 0, 0)

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

  DEFINE_TEST (        -INFINITY,         -INFINITY,         -INFINITY, __FLT_NAN, 0, 0)
  DEFINE_TEST (         INFINITY,         -INFINITY,          INFINITY, __FLT_NAN, 0, 0)
  DEFINE_TEST (        -INFINITY,          INFINITY,         -INFINITY, __FLT_NAN, 0, 0)
  DEFINE_TEST (         INFINITY,          INFINITY,          INFINITY, __FLT_NAN, 0, 0)

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

  DEFINE_TEST (        __FLT_NAN,         -INFINITY,         __FLT_NAN, __FLT_NAN, 0, 0)
  DEFINE_TEST (        __FLT_NAN,          INFINITY,         __FLT_NAN, __FLT_NAN, 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_NAN,         __FLT_NAN, __FLT_NAN, 0, 0)

  TESTS_END

  return RUN_DEFAULT_TESTS(creal);
}