1  /* Copyright (C) 2003  Free Software Foundation.
       2  
       3     Ensure that builtin stpcpy performs correctly.
       4  
       5     Written by Jakub Jelinek, 21/05/2003.  */
       6  
       7  extern void abort (void);
       8  typedef __SIZE_TYPE__ size_t;
       9  extern int memcmp (const void *, const void *, size_t);
      10  extern char *stpcpy (char *, const char *);
      11  extern int inside_main;
      12  
      13  long buf1[64];
      14  char *buf2 = (char *) (buf1 + 32);
      15  long buf5[20];
      16  char buf7[20];
      17  
      18  void
      19  __attribute__((noinline))
      20  test (long *buf3, char *buf4, char *buf6, int n)
      21  {
      22    int i = 4;
      23  
      24    if (stpcpy ((char *) buf3, "abcdefghijklmnop") != (char *) buf1 + 16
      25        || memcmp (buf1, "abcdefghijklmnop", 17))
      26      abort ();
      27  
      28    if (__builtin_stpcpy ((char *) buf3, "ABCDEFG") != (char *) buf1 + 7
      29        || memcmp (buf1, "ABCDEFG\0ijklmnop", 17))
      30      abort ();
      31  
      32    if (stpcpy ((char *) buf3 + i++, "x") != (char *) buf1 + 5
      33        || memcmp (buf1, "ABCDx\0G\0ijklmnop", 17))
      34      abort ();
      35  }
      36  
      37  void
      38  main_test (void)
      39  {
      40    /* All these tests are allowed to call mempcpy/stpcpy.  */
      41    inside_main = 0;
      42    __builtin_memcpy (buf5, "RSTUVWXYZ0123456789", 20);
      43    __builtin_memcpy (buf7, "RSTUVWXYZ0123456789", 20);
      44    test (buf1, buf2, "rstuvwxyz", 0);
      45  }