1// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
2
3class A {
4public:
5  A(): str() { }
6  A(const char *p) { }
7  A(char *p) : str(p + 'a') { } // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
8  A& operator+(const char *p) { return *this; }
9  A& operator+(char ch) { return *this; }
10  char * str;
11};
12
13void f(const char *s) {
14  A a = s + 'a'; // // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
15  a = a + s + 'b'; // no-warning
16
17  char *str = 0;
18  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}}
19
20  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}}
21
22  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}}
23
24  wchar_t *wstr;
25  wstr = wstr + L'c'; // expected-warning {{adding 'wchar_t' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
26  str2 = str + u'a'; // expected-warning {{adding 'char16_t' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
27
28  // no-warning
29  char c = 'c';
30  str = str + c;
31  str = c + str;
32}
33