forked from OSchip/llvm-project
65 lines
1.2 KiB
C++
65 lines
1.2 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -Wextra -std=c++2a -verify %s
|
|
// RUN: %clang_cc1 -fsyntax-only -Wextra-semi-stmt -std=c++2a -verify %s
|
|
// RUN: %clang_cc1 -fsyntax-only -Wempty-init-stmt -std=c++2a -verify %s
|
|
// RUN: cp %s %t
|
|
// RUN: %clang_cc1 -x c++ -Wempty-init-stmt -std=c++2a -fixit %t
|
|
// RUN: %clang_cc1 -x c++ -Wempty-init-stmt -std=c++2a -Werror %t
|
|
|
|
struct S {
|
|
int *begin();
|
|
int *end();
|
|
};
|
|
|
|
void naive(int x) {
|
|
if (; true) // expected-warning {{empty initialization statement of 'if' has no effect}}
|
|
;
|
|
|
|
switch (; x) { // expected-warning {{empty initialization statement of 'switch' has no effect}}
|
|
}
|
|
|
|
for (; int y : S()) // expected-warning {{empty initialization statement of 'range-based for' has no effect}}
|
|
;
|
|
|
|
for (;;) // OK
|
|
;
|
|
}
|
|
|
|
#define NULLMACRO
|
|
|
|
void with_null_macro(int x) {
|
|
if (NULLMACRO; true)
|
|
;
|
|
|
|
switch (NULLMACRO; x) {
|
|
}
|
|
|
|
for (NULLMACRO; int y : S())
|
|
;
|
|
}
|
|
|
|
#define SEMIMACRO ;
|
|
|
|
void with_semi_macro(int x) {
|
|
if (SEMIMACRO true)
|
|
;
|
|
|
|
switch (SEMIMACRO x) {
|
|
}
|
|
|
|
for (SEMIMACRO int y : S())
|
|
;
|
|
}
|
|
|
|
#define PASSTHROUGHMACRO(x) x
|
|
|
|
void with_passthrough_macro(int x) {
|
|
if (PASSTHROUGHMACRO(;) true)
|
|
;
|
|
|
|
switch (PASSTHROUGHMACRO(;) x) {
|
|
}
|
|
|
|
for (PASSTHROUGHMACRO(;) int y : S())
|
|
;
|
|
}
|