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TheRock/compiler/amd-llvm/clang/test/CXX/drs/cwg2406.cpp
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

45 lines
1.7 KiB
C++

// RUN: %clang_cc1 -std=c++98 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify=expected,cxx98-14
// RUN: %clang_cc1 -std=c++11 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify=expected,cxx98-14
// RUN: %clang_cc1 -std=c++14 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify=expected,cxx98-14
// RUN: %clang_cc1 -std=c++17 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify=expected,since-cxx17
// RUN: %clang_cc1 -std=c++20 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify=expected,since-cxx17
// RUN: %clang_cc1 -std=c++23 %s -fexceptions -fcxx-exceptions -pedantic-errors -verify=expected,since-cxx17
// RUN: %clang_cc1 -std=c++2c %s -fexceptions -fcxx-exceptions -pedantic-errors -verify=expected,since-cxx17
// cxx98-14-no-diagnostics
namespace cwg2406 { // cwg2406: 5
#if __cplusplus >= 201703L
void fallthrough(int n) {
void g(), h(), i();
switch (n) {
case 1:
case 2:
g();
[[fallthrough]];
case 3: // warning on fallthrough discouraged
do {
[[fallthrough]];
// since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
} while (false);
case 6:
do {
[[fallthrough]];
// since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
} while (n);
case 7:
while (false) {
[[fallthrough]];
// since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
}
case 5:
h();
case 4: // implementation may warn on fallthrough
i();
[[fallthrough]];
// since-cxx17-error@-1 {{fallthrough annotation does not directly precede switch label}}
}
}
#endif
} // namespace cwg2406