C++ (Cpp) __builtin_isinflの例

コード例 #1

ファイル: builtins-44.c プロジェクト: BackupTheBerlios/iphone-binutils-svn

int
main ()
{
  double pinf = __builtin_inf ();
  float pinff = __builtin_inff ();
  long double pinfl = __builtin_infl ();

  if (__builtin_isinf (pinf) != 1)
    link_error ();
  if (__builtin_isinf (pinff) != 1)
    link_error ();
  if (__builtin_isinff (pinff) != 1)
    link_error ();
  if (__builtin_isinf (pinfl) != 1)
    link_error ();
  if (__builtin_isinfl (pinfl) != 1)
    link_error ();

  if (__builtin_isinf (-pinf) != -1)
    link_error ();
  if (__builtin_isinf (-pinff) != -1)
    link_error ();
  if (__builtin_isinff (-pinff) != -1)
    link_error ();
  if (__builtin_isinf (-pinfl) != -1)
    link_error ();
  if (__builtin_isinfl (-pinfl) != -1)
    link_error ();

  if (__builtin_isinf (4.0))
    link_error ();
  if (__builtin_isinf (4.0))
    link_error ();
  if (__builtin_isinff (4.0))
    link_error ();
  if (__builtin_isinf (4.0))
    link_error ();
  if (__builtin_isinfl (4.0))
    link_error ();
}

コード例 #2

ファイル: pr39228.c プロジェクト: 0day-ci/gcc

static inline int __attribute__((always_inline)) testl (long double b)
{
  long double c = 1.01L * b;

  return __builtin_isinfl (c);
}