/* BZ 12420 */

#include <errno.h>

#include <fenv.h>

#include <stdio.h>

#include <stdlib.h>

#include <ucontext.h>

#include <libc-diag.h>

static int

do_test (void)

{

  if (FE_ALL_EXCEPT == 0)

    {

      printf("Skipping test; no support for FP exceptions.\n");

      return 0;

    }

  int except_mask = 0;

#ifdef FE_DIVBYZERO

  except_mask |= FE_DIVBYZERO;

#endif

#ifdef FE_INVALID

  except_mask |= FE_INVALID;

#endif

#ifdef FE_OVERFLOW

  except_mask |= FE_OVERFLOW;

#endif

#ifdef FE_UNDERFLOW

  except_mask |= FE_UNDERFLOW;

#endif

  int status = feenableexcept (except_mask);

  except_mask = fegetexcept ();

  if (except_mask == -1)

    {

      printf("\nBefore getcontext(): fegetexcept returned: %d\n",

	     except_mask);

      return 1;

    }

  ucontext_t ctx;

  status = getcontext(&ctx;;

  if (status)

    {

      printf("\ngetcontext failed, errno: %d.\n", errno);

      return 1;

    }

  printf ("\nDone with getcontext()!\n");

  fflush (NULL);

  /* On nios2 GCC 5 warns that except_mask may be used

     uninitialized.  Because it is always initialized and nothing in

     this test ever calls setcontext (a setcontext call could result

     in local variables being clobbered on the second return from

     getcontext), in fact an uninitialized use is not possible.  */

  DIAG_PUSH_NEEDS_COMMENT;

  DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");

  int mask = fegetexcept ();

  if (mask != except_mask)

    {

      printf("\nAfter getcontext(): fegetexcept returned: %d, expected: %d.\n",

	     mask, except_mask);

      return 1;

    }

  printf("\nAt end fegetexcept() returned %d, expected: %d.\n",

	 mask, except_mask);

  DIAG_POP_NEEDS_COMMENT;

  return 0;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"