31 lines · c
1// RUN: %clang_cc1 -fsyntax-only -verify %s2 3struct AB{const char *a; const char*b;};4 5const char *foo(const struct AB *ab) {6 return ab->a + 'b'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}7}8 9void f(const char *s) {10 char *str = 0;11 char *str2 = str + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}12 13 const char *constStr = s + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}14 15 str = 'c' + str;// expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}16 17 char strArr[] = "foo";18 str = strArr + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}19 char *strArr2[] = {"ac","dc"};20 str = strArr2[0] + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}21 22 23 struct AB ab;24 constStr = foo(&ab) + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}25 26 // no-warning27 char c = 'c';28 str = str + c;29 str = c + str;30}31