1 /* PR tree-optimization/87034 - missing -Wformat-overflow on a sprintf
2 %s with a wide string. */
3 /* { dg-do compile } */
4 /* { dg-require-effective-target 4byte_wchar_t } */
5 /* { dg-options "-O2 -Wall -Wformat-overflow -ftrack-macro-expansion=0" } */
6
7 typedef __WCHAR_TYPE__ wchar_t;
8
9 extern int sprintf (char*, const char*, ...);
10
11 struct S
12 {
13 char a[1];
14 void (*pf)(void);
15 };
16
test(struct S * p)17 void test (struct S *p)
18 {
19 const char *q = sizeof (wchar_t) == 2
20 ? (char*)L"\x4142\x4344" : (char*)L"\x41424344\x45464748";
21
22 sprintf (p->a, "%s", q); /* { dg-warning "\\\[-Wformat-overflow" "pr87034" { xfail *-*-*} } */
23 }
24