1 // RUN: %clang_cc1 -Wparentheses -fsyntax-only -verify %s 2 // RUN: %clang_cc1 -Wparentheses -fixit %s -o - | %clang_cc1 -Wparentheses -Werror - 3 4 bool someConditionFunc(); 5 6 void conditional_op(int x, int y, bool b) { 7 (void)(x + someConditionFunc() ? 1 : 2); // expected-warning {{operator '?:' has lower precedence than '+'}} \ 8 // expected-note {{place parentheses around the '?:' expression to evaluate it first}} \ 9 // expected-note {{place parentheses around the '+' expression to silence this warning}} 10 11 (void)(x - b ? 1 : 2); // expected-warning {{operator '?:' has lower precedence than '-'}} \ 12 // expected-note {{place parentheses around the '?:' expression to evaluate it first}} \ 13 // expected-note {{place parentheses around the '-' expression to silence this warning}} 14 15 (void)(x * (x == y) ? 1 : 2); // expected-warning {{operator '?:' has lower precedence than '*'}} \ 16 // expected-note {{place parentheses around the '?:' expression to evaluate it first}} \ 17 // expected-note {{place parentheses around the '*' expression to silence this warning}} 18 } 19 20 class Stream { 21 public: 22 operator int(); 23 Stream &operator<<(int); 24 Stream &operator<<(const char*); 25 }; 26 27 void f(Stream& s, bool b) { 28 (void)(s << b ? "foo" : "bar"); // expected-warning {{operator '?:' has lower precedence than '<<'}} \ 29 // expected-note {{place parentheses around the '?:' expression to evaluate it first}} \ 30 // expected-note {{place parentheses around the '<<' expression to silence this warning}} 31 } 32 33 struct S { 34 operator int() { return 42; } 35 friend S operator+(const S &lhs, bool) { return S(); } 36 }; 37 38 void test(S *s, bool (S::*m_ptr)()) { 39 (void)(*s + true ? "foo" : "bar"); // expected-warning {{operator '?:' has lower precedence than '+'}} \ 40 // expected-note {{place parentheses around the '?:' expression to evaluate it first}} \ 41 // expected-note {{place parentheses around the '+' expression to silence this warning}} 42 43 (void)((*s + true) ? "foo" : "bar"); // No warning. 44 45 // Don't crash on unusual member call expressions. 46 (void)((s->*m_ptr)() ? "foo" : "bar"); 47 } 48
