gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20050502-2.c


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/* PR target/21297 */
typedef __SIZE_TYPE__ size_t;
extern int memcmp (const char *, const char *, size_t);
extern void abort ();

void
foo (char *x)
{
  int i;
  for (i = 0; i < 2; i++);
  x[i + i] = '\0';
}

void
bar (char *x)
{
  int i;
  for (i = 0; i < 2; i++);
  x[i + i + i + i] = '\0';
}

int
main (void)
{
  char x[] = "IJKLMNOPQR";
  foo (x);
  if (memcmp (x, "IJKL\0NOPQR", sizeof x) != 0)
    abort ();
  x[4] = 'M';
  bar (x);
  if (memcmp (x, "IJKLMNOP\0R", sizeof x) != 0)
    abort ();
  return 0;
}