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// RUN: %clang_cc1 -std=c++2a -x c++ -verify %s
namespace nodiag {
template <typename T> requires bool(T())
int A();
template <typename U> requires bool(U())
int A();
} // end namespace nodiag
namespace diag {
namespace orig {
template <typename T> requires true
int A();
template <typename T>
int B();
template <typename T> requires true
int C();
}
template <typename T>
int orig::A();
// expected-error@-1{{out-of-line declaration of 'A' does not match any declaration in namespace 'diag::orig'}}
template <typename T> requires true
int orig::B();
// expected-error@-1{{out-of-line declaration of 'B' does not match any declaration in namespace 'diag::orig'}}
template <typename T> requires !0
int orig::C();
// expected-error@-1{{out-of-line declaration of 'C' does not match any declaration in namespace 'diag::orig'}}
} // end namespace diag
namespace nodiag {
struct AA {
template <typename T> requires someFunc(T())
int A();
};
template <typename T> requires someFunc(T())
int AA::A() { return sizeof(T); }
} // end namespace nodiag
namespace diag {
template <unsigned N>
struct TA {
template <template <unsigned> class TT> requires TT<N>::happy
int A();
};
template <unsigned N>
template <template <unsigned> class TT> int TA<N>::A() { return sizeof(TT<N>); }
// expected-error@-1{{out-of-line definition of 'A' does not match any declaration in 'TA<N>'}}
} // end namespace diag
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