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/* PR c/84919 - bogus -Wrestrict on sprintf %p with destination as argument
{ dg-do compile }
-O2 isn't strictly necessary but setting also verifies that the sprintf/
strlen pass doesn't warn with non-constant arguments.
{ dg-options "-O2 -Wall" } */
extern int sprintf (char* restrict, const char* restrict, ...);
extern int snprintf (char* restrict, __SIZE_TYPE__, const char* restrict, ...);
char a[32];
void test_warn (char *p)
{
a[0] = 0;
sprintf (a, "a=%s", a); /* { dg-warning "-Wrestrict" } */
p = a;
char *q = p + 3;
sprintf (p, "a=%s", q); /* { dg-warning "-Wrestrict" } */
}
void test_nowarn_front_end (char *d)
{
sprintf (d, "%p", d);
snprintf (d, 32, "%p", d);
sprintf (a, "p=%p", a);
snprintf (a, sizeof a, "%p", a);
}
void test_nowarn_sprintf_pass (char *d)
{
char *q = d;
sprintf (d, "p=%p", q);
snprintf (d, 32, "p=%p", q);
q = a;
sprintf (a, "a=%p", q);
snprintf (a, sizeof a, "a=%p", q);
}
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