51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
|
// RUN: %clang_cc1 -verify -std=c23 %s
|
||
|
|
// RUN: %clang_cc1 -verify=pedantic -std=c11 -pedantic %s
|
||
|
|
// RUN: %clang_cc1 -verify=compat -std=c23 -Wpre-c23-compat %s
|
||
|
|
|
||
|
|
// expected-no-diagnostics
|
||
|
|
|
||
|
|
/* WG14 N2508: yes
|
||
|
|
* Free positioning of labels inside compound statements
|
||
|
|
*/
|
||
|
|
void test(void) {
|
||
|
|
{
|
||
|
|
inner:
|
||
|
|
} /* pedantic-warning {{label at end of compound statement is a C23 extension}}
|
||
|
|
compat-warning {{label at end of compound statement is incompatible with C standards before C23}}
|
||
|
|
*/
|
||
|
|
|
||
|
|
switch (1) {
|
||
|
|
case 1:
|
||
|
|
} /* pedantic-warning {{label at end of compound statement is a C23 extension}}
|
||
|
|
compat-warning {{label at end of compound statement is incompatible with C standards before C23}}
|
||
|
|
*/
|
||
|
|
|
||
|
|
{
|
||
|
|
multiple: labels: on: a: line:
|
||
|
|
} /* pedantic-warning {{label at end of compound statement is a C23 extension}}
|
||
|
|
compat-warning {{label at end of compound statement is incompatible with C standards before C23}}
|
||
|
|
*/
|
||
|
|
|
||
|
|
final:
|
||
|
|
} /* pedantic-warning {{label at end of compound statement is a C23 extension}}
|
||
|
|
compat-warning {{label at end of compound statement is incompatible with C standards before C23}}
|
||
|
|
*/
|
||
|
|
|
||
|
|
void test_labels(void) {
|
||
|
|
label:
|
||
|
|
int i = 0; /* pedantic-warning {{label followed by a declaration is a C23 extension}}
|
||
|
|
compat-warning {{label followed by a declaration is incompatible with C standards before C23}}
|
||
|
|
*/
|
||
|
|
|
||
|
|
switch (i) {
|
||
|
|
case 1:
|
||
|
|
_Static_assert(1, ""); /* pedantic-warning {{label followed by a declaration is a C23 extension}}
|
||
|
|
compat-warning {{label followed by a declaration is incompatible with C standards before C23}}
|
||
|
|
*/
|
||
|
|
default:
|
||
|
|
_Static_assert(1, ""); /* pedantic-warning {{label followed by a declaration is a C23 extension}}
|
||
|
|
compat-warning {{label followed by a declaration is incompatible with C standards before C23}}
|
||
|
|
*/
|
||
|
|
}
|
||
|
|
}
|