1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 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
