1// RUN: %clang_cc1 -fsyntax-only -verify %s
2
3void f(int x) {
4  char foo[10];
5  int bar[20];
6  char qux[30];
7
8  (void)sizeof(bar + 10); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}}
9  (void)sizeof(foo - 20); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}}
10  (void)sizeof(bar - x); // expected-warning{{sizeof on pointer operation will return size of 'int *' instead of 'int [20]'}}
11  (void)sizeof(foo + x); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}}
12
13  // This is ptrdiff_t.
14  (void)sizeof(foo - qux); // no-warning
15
16  (void)sizeof(foo, x); // no-warning
17  (void)sizeof(x, foo); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char [10]'}}
18}
19