stack-addr-ps.c revision 31483b48c75e2bd544964102f67809b46603c683 
1// RUN: clang -checker-simple -verify %s
2
3#include <stdlib.h>
4#include <alloca.h>
5
6int* f1() {
7  int x = 0;
8  return &x; // expected-warning{{Address of stack memory associated with local variable 'x' returned.}} expected-warning{{address of stack memory associated with local variable 'x' returned}}
9}
10
11int* f2(int y) {
12  return &y;  // expected-warning{{Address of stack memory associated with local variable 'y' returned.}} expected-warning{{address of stack memory associated with local variable 'y' returned}}
13}
14
15int* f3(int x, int *y) {
16  int w = 0;
17
18  if (x)
19    y = &w;
20
21  return y; // expected-warning{{Address of stack memory associated with local variable 'w' returned.}}
22}
23
24void* compound_literal(int x, int y) {
25  if (x)
26    return &(unsigned short){((unsigned short)0x22EF)}; // expected-warning{{Address of stack memory}} expected-warning{{braces around scalar initializer}}
27
28  int* array[] = {};
29  struct s { int z; double y; int w; };
30
31  if (y)
32    return &((struct s){ 2, 0.4, 5 * 8 }); // expected-warning{{Address of stack memory}}
33
34
35  void* p = &((struct s){ 42, 0.4, x ? 42 : 0 });
36  return p; // expected-warning{{Address of stack memory}}
37}
38
39void* alloca_test() {
40  void* p = alloca(10);
41  return p; // expected-warning{{Address of stack memory}}
42}
43
44