90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
|
// RUN: %clang_cc1 -std=c++2a -x c++ -verify %s
|
||
|
|
|
||
|
|
namespace nodiag {
|
||
|
|
|
||
|
|
template <typename T> requires (bool(T()))
|
||
|
|
struct A;
|
||
|
|
template <typename U> requires (bool(U()))
|
||
|
|
struct A;
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
concept C1 = true;
|
||
|
|
|
||
|
|
template <C1 T> requires (bool(T()))
|
||
|
|
struct B;
|
||
|
|
template <C1 U> requires (bool(U()))
|
||
|
|
struct B;
|
||
|
|
|
||
|
|
} // end namespace nodiag
|
||
|
|
|
||
|
|
namespace diag {
|
||
|
|
|
||
|
|
template <typename T> requires true // expected-note{{previous template declaration is here}}
|
||
|
|
struct A;
|
||
|
|
template <typename T> struct A; // expected-error{{requires clause differs in template redeclaration}}
|
||
|
|
|
||
|
|
template <typename T> struct B; // expected-note{{previous template declaration is here}}
|
||
|
|
template <typename T> requires true // expected-error{{requires clause differs in template redeclaration}}
|
||
|
|
struct B;
|
||
|
|
|
||
|
|
template <typename T> requires true // expected-note{{previous template declaration is here}}
|
||
|
|
struct C;
|
||
|
|
template <typename T> requires (!0) // expected-error{{requires clause differs in template redeclaration}}
|
||
|
|
struct C;
|
||
|
|
|
||
|
|
template<typename T>
|
||
|
|
concept C1 = true;
|
||
|
|
|
||
|
|
template <C1 T> // expected-note{{previous template declaration is here}}
|
||
|
|
struct D;
|
||
|
|
template <typename T> requires C1<T> // expected-error{{type constraint differs in template redeclaration}}
|
||
|
|
struct D;
|
||
|
|
|
||
|
|
} // end namespace diag
|
||
|
|
|
||
|
|
namespace nodiag {
|
||
|
|
|
||
|
|
struct AA {
|
||
|
|
template <typename T> requires (someFunc(T()))
|
||
|
|
struct A;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <typename U> requires (someFunc(U()))
|
||
|
|
struct AA::A { };
|
||
|
|
|
||
|
|
struct AAF {
|
||
|
|
template <typename T> requires (someFunc(T()))
|
||
|
|
friend struct AA::A;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // end namespace nodiag
|
||
|
|
|
||
|
|
namespace diag {
|
||
|
|
|
||
|
|
template <unsigned N>
|
||
|
|
struct TA {
|
||
|
|
template <template <unsigned> class TT> requires TT<N>::happy // expected-note {{previous template declaration is here}}
|
||
|
|
struct A;
|
||
|
|
|
||
|
|
template <template <unsigned> class TT> requires TT<N>::happy // expected-note {{previous template declaration is here}}
|
||
|
|
struct B;
|
||
|
|
|
||
|
|
struct AF;
|
||
|
|
};
|
||
|
|
|
||
|
|
template <unsigned N>
|
||
|
|
template <template <unsigned> class TT> struct TA<N>::A { }; // expected-error{{requires clause differs in template redeclaration}}
|
||
|
|
|
||
|
|
|
||
|
|
template <unsigned N>
|
||
|
|
template <template <unsigned> class TT> requires TT<N + 1>::happy struct TA<N>::B { }; // expected-error{{requires clause differs in template redeclaration}}
|
||
|
|
|
||
|
|
template <unsigned N>
|
||
|
|
struct TA<N>::AF {
|
||
|
|
// we do not expect a diagnostic here because the template parameter list is dependent.
|
||
|
|
template <template <unsigned> class TT> requires TT<N + 0>::happy
|
||
|
|
friend struct TA::A;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // end namespace diag
|