1// RUN: %clang_cc1 -fsyntax-only -verify %s
2
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-warning
27  char c = 'c';
28  str = str + c;
29  str = c + str;
30}
31