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