1 // RUN: %clang_cc1 -Wparentheses -fsyntax-only -verify %s
2 // RUN: %clang_cc1 -Wparentheses -fixit %s -o - | %clang_cc1 -Wparentheses -Werror -
4 // Test the various warnings under -Wparentheses
7 if (i
= 4) {} // expected-warning {{assignment as a condition}} \
8 // expected-note{{use '==' to turn this assignment into an equality comparison}} \
9 // expected-note{{place parentheses around the assignment to silence this warning}}
13 void bitwise_rel(unsigned i
) {
14 (void)(i
& 0x2 == 0); // expected-warning {{& has lower precedence than ==}} \
15 // expected-note{{place parentheses around the & expression to evaluate it first}} \
16 // expected-note{{place parentheses around the == expression to silence this warning}}
17 (void)(0 == i
& 0x2); // expected-warning {{& has lower precedence than ==}} \
18 // expected-note{{place parentheses around the & expression to evaluate it first}} \
19 // expected-note{{place parentheses around the == expression to silence this warning}}
20 (void)(i
& 0xff < 30); // expected-warning {{& has lower precedence than <}} \
21 // expected-note{{place parentheses around the & expression to evaluate it first}} \
22 // expected-note{{place parentheses around the < expression to silence this warning}}
23 (void)((i
& 0x2) == 0);
24 (void)(i
& (0x2 == 0));
26 (void)(i
== 1 | i
== 2 | i
== 3);
27 (void)(i
!= 1 & i
!= 2 & i
!= 3);
29 (void)(i
|| i
&& i
); // expected-warning {{'&&' within '||'}} \
30 // expected-note {{place parentheses around the '&&' expression to silence this warning}}
31 (void)(i
|| i
&& "w00t"); // no warning.
32 (void)("w00t" && i
|| i
); // no warning.
33 (void)(i
|| i
&& "w00t" || i
); // expected-warning {{'&&' within '||'}} \
34 // expected-note {{place parentheses around the '&&' expression to silence this warning}}
35 (void)(i
|| "w00t" && i
|| i
); // expected-warning {{'&&' within '||'}} \
36 // expected-note {{place parentheses around the '&&' expression to silence this warning}}
37 (void)(i
&& i
|| 0); // no warning.
38 (void)(0 || i
&& i
); // no warning.