800ddf3dda
* if, switch, range-based for: warn if semicolon is on the same line.
* for, while: warn if semicolon is on the same line and either next
statement is compound statement or next statement has more
indentation.
Replacing the semicolon with {} or moving the semicolon to the next
line will always silence the warning.
Tests from SemaCXX/if-empty-body.cpp merged into SemaCXX/warn-empty-body.cpp.
llvm-svn: 150515
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify %s -Wno-unreachable-code
|
|
|
|
void test1() {
|
|
{ ; { ;;}} ;;
|
|
}
|
|
|
|
void test2() {
|
|
if (0) { if (1) {} } else { }
|
|
|
|
do { } while (0);
|
|
|
|
while (0) while(0) do ; while(0);
|
|
|
|
for ((void)0;0;(void)0)
|
|
for (;;)
|
|
for ((void)9;0;(void)2)
|
|
;
|
|
for (int X = 0; 0; (void)0);
|
|
}
|
|
|
|
void test3() {
|
|
switch (0) {
|
|
|
|
case 4:
|
|
if (0) {
|
|
case 6: ;
|
|
}
|
|
default:
|
|
;
|
|
}
|
|
}
|
|
|
|
void test4() {
|
|
if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
|
|
|
|
int X; // declaration in a block.
|
|
|
|
foo: if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
|
|
}
|
|
|
|
typedef int t;
|
|
void test5() {
|
|
if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
|
|
|
|
t x = 0;
|
|
|
|
if (0); // expected-warning {{if statement has empty body}} expected-note {{put the semicolon on a separate line to silence this warning}}
|
|
}
|
|
|
|
|
|
void test6(void) {
|
|
do
|
|
. // expected-error {{expected expression}}
|
|
while (0);
|
|
}
|
|
|
|
int test7() {
|
|
return 4 // expected-error {{expected ';' after return statement}}
|
|
}
|
|
|
|
void test8() {
|
|
// Should not skip '}' and produce a "expected '}'" error.
|
|
undecl // expected-error {{use of undeclared identifier 'undecl'}}
|
|
}
|