1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2
f(int x)3 void 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