1 /* PR c/92326 - wrong bound in zero-length array diagnostics
2 { dg-do compile }
3 { dg-options "-O2 -Wall" } */
4
5 extern int a0[0];
6 extern int ax[];
7
warn_global_array(void)8 void warn_global_array (void)
9 {
10 a0[0] = 0; // { dg-warning "array bounds of 'int *\\\[0]'" }
11 ax[-1] = 0; // { dg-warning "array bounds of 'int *\\\[]'" }
12 }
13
14
15 struct S0 { int n, a0[0]; } s0;
16 struct Sx { int n, ax[]; } sx = { 0 };
17
warn_member_array(void)18 void warn_member_array (void)
19 {
20 s0.a0[0] = 0; // { dg-warning "array bounds of 'int *\\\[0]'" }
21 sx.ax[0] = 0; // { dg-warning "array bounds of 'int *\\\[]'" }
22 }
23