1 /* More sequence point warning tests */
2 /* { dg-do compile } */
3 /* { dg-options "-Wsequence-point" } */
5 struct s { struct s *nxt; int v; } q;
13 /* Test general-lvalue sequence point warnings */
14 (*p) = (*p)++; /* { dg-warning "undefined" "sequence point warning" } */
15 p[3] = p[3]++; /* { dg-warning "undefined" "sequence point warning" } */
16 p[i] = p[i]++; /* { dg-warning "undefined" "sequence point warning" } */
17 x[3] = x[3]++; /* { dg-warning "undefined" "sequence point warning" } */
18 q.nxt->nxt->v = q.nxt->nxt->v++; /* { dg-warning "undefined" "sequence point warning" } */
20 /* test expressions that appear elsewhere in the C grammar */
22 { int a = i-i++; (void)a;} /* { dg-warning "undefined" "sequence point warning" } */
24 if ((i-i++) != 0) /* { dg-warning "undefined" "sequence point warning" } */
25 return i-i++; /* { dg-warning "undefined" "sequence point warning" } */
27 for (i-i++;;) /* { dg-warning "undefined" "sequence point warning" } */
30 for (; (i-i++) != 0; ) /* { dg-warning "undefined" "sequence point warning" } */
33 for (;;i-i++) /* { dg-warning "undefined" "sequence point warning" } */
36 while ((i-i++) != 0) /* { dg-warning "undefined" "sequence point warning" } */
39 do {} while ((i-i++) != 0); /* { dg-warning "undefined" "sequence point warning" } */
41 switch (i-i++) { /* { dg-warning "undefined" "sequence point warning" } */