71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
|
// RUN: %clang_cc1 -std=c++98 %s -verify=expected
|
||
|
|
// RUN: %clang_cc1 -std=c++11 %s -verify=expected
|
||
|
|
// RUN: %clang_cc1 -std=c++14 %s -verify=expected
|
||
|
|
// RUN: %clang_cc1 -std=c++17 %s -verify=expected,since-cxx17
|
||
|
|
// RUN: %clang_cc1 -std=c++20 %s -verify=expected,since-cxx17
|
||
|
|
// RUN: %clang_cc1 -std=c++23 %s -verify=expected,since-cxx17
|
||
|
|
// RUN: %clang_cc1 -std=c++2c %s -verify=expected,since-cxx17
|
||
|
|
|
||
|
|
#if __cplusplus <= 201402L
|
||
|
|
// expected-no-diagnostics
|
||
|
|
#endif
|
||
|
|
|
||
|
|
namespace dr2406 { // dr2406: 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 dr2450 { // dr2450: 18 review
|
||
|
|
#if __cplusplus >= 202302L
|
||
|
|
struct S {int a;};
|
||
|
|
template <S s>
|
||
|
|
void f(){}
|
||
|
|
|
||
|
|
void test() {
|
||
|
|
f<{0}>();
|
||
|
|
f<{.a= 0}>();
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace dr2459 { // dr2459: 18 drafting
|
||
|
|
#if __cplusplus >= 202302L
|
||
|
|
struct A {
|
||
|
|
constexpr A(float) {}
|
||
|
|
};
|
||
|
|
template<A> struct X {};
|
||
|
|
X<1> x;
|
||
|
|
#endif
|
||
|
|
}
|