19 lines · c
1// RUN: %clang_cc1 -fsyntax-only -verify %s2 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-warning15 16 (void)sizeof(foo, x); // no-warning17 (void)sizeof(x, foo); // expected-warning{{sizeof on pointer operation will return size of 'char *' instead of 'char[10]'}}18}19