support/regression/tests/gcc-torture-execute-enum-2.c


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/*
   enum-2.c from the execute part of the gcc torture tests.
 */

#include <testfwk.h>

#ifdef __SDCC
#pragma std_c99
#endif

/* Copyright (C) 2000 Free Software Foundation */
/* by Alexandre Oliva  <aoliva@redhat.com> */

enum foo { FOO, BAR };

/* Even though the underlying type of an enum is unspecified, the type
   of enumeration constants is explicitly defined as int (6.4.4.3/2 in
   the C99 Standard).  Therefore, `i' must not be promoted to
   `unsigned' in the comparison below; we must exit the loop when it
   becomes negative. */

void
testTortureExecute (void)
{
  int i;
  for (i = BAR; i >= FOO; --i)
    if (i == -1)
      ASSERT (0);

  return;
}