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comparison gcc/testsuite/gcc.dg/pr79538.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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children 1830386684a0
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111:04ced10e8804 131:84e7813d76e9
1 /* PR middle-end/79538 - missing -Wformat-overflow with %s and non-member array arguments
2 { dg-do compile }
3 { dg-options "-O2 -Wformat-overflow" } */
4
5 char a3[3];
6 char a4[4];
7 char d[3];
8
9 void g (int i)
10 {
11 const char *s = i < 0 ? a3 : a4;
12 __builtin_sprintf (d, "%s", s); /* { dg-warning ".__builtin_sprintf. may write a terminating nul past the end of the destination" } */
13 return;
14 }
15
16 void f ()
17 {
18 char des[3];
19 char src[] = "abcd";
20 __builtin_sprintf (des, "%s", src); /* { dg-warning "directive writing up to 4 bytes into a region of size 3" } */
21 return;
22 }