gnu/dist/gcc4/gcc/testsuite/gcc.c-torture/execute/builtins/strpcpy-2.c

   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 }