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comparison gcc/testsuite/gcc.dg/Wsequence-point-pr18050.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* PR 18050 : bogus warning with -Wsequence-point */
2 /* { dg-do compile } */
3 /* { dg-options "-Wsequence-point" } */
4
5 struct x
6 {
7 int i;
8 };
9 void bar(struct x*, int *);
10
11 void foo(struct x *y)
12 {
13 bar(y++, &y->i); /* { dg-warning "operation on 'y' may be undefined" } */
14 }
15
16 void zz(int a, int *b)
17 {
18 *b = a;
19 }
20
21 void baz(void) {
22 int a = 5;
23 zz(++a, &a); /* { dg-bogus "operation on 'a' may be undefined" } */
24 }