summaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.c-torture/execute/string-opt-17.c
blob: 76a351bfb6b86207515bcb24ba9347aa6b9f48c6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
/* Copyright (C) 2003  Free Software Foundation.

   Test strcpy optimizations don't evaluate side-effects twice.
      
   Written by Jakub Jelinek, June 23, 2003.  */

typedef __SIZE_TYPE__ size_t;
extern char *strcpy (char *, const char *);
extern int memcmp (const void *, const void *, size_t);
extern void abort (void);
extern void exit (int);

size_t
test1 (char *s, size_t i)
{
  strcpy (s, "foobarbaz" + i++);
  return i;
}

size_t
check2 (void)
{
  static size_t r = 5;
  if (r != 5)
    abort ();
  return ++r;
}

void
test2 (char *s)
{
  strcpy (s, "foobarbaz" + check2 ());
}

int
main (void)
{
  char buf[10];
  if (test1 (buf, 7) != 8 || memcmp (buf, "az", 3))
    abort ();
  test2 (buf);
  if (memcmp (buf, "baz", 4))
    abort ();
  exit (0);
}