derek.holloway
7502bf64a4
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220 lines
10 KiB
C++
220 lines
10 KiB
C++
// RUN: %clang_cc1 -std=c++20 -verify %s
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// expected-error@+1 {{invalid operands to binary expression ('const char[5]' and 'float')}}
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constexpr bool CausesRecoveryExpr = "test" + 1.0f;
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template<typename T>
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concept ReferencesCRE = CausesRecoveryExpr; // #subst1
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template<typename T> requires CausesRecoveryExpr // #NVC1REQ
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void NoViableCands1(){} // #NVC1
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template<typename T> requires ReferencesCRE<T> // #NVC2REQ
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void NoViableCands2(){} // #NVC2
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template<ReferencesCRE T> // #NVC3REQ
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void NoViableCands3(){} // #NVC3
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void NVCUse() {
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NoViableCands1<int>();
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// expected-error@-1 {{no matching function for call to 'NoViableCands1'}}
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// expected-note@#NVC1{{candidate template ignored: constraints not satisfied}}
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// expected-note@#NVC2REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#NVC1REQ{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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NoViableCands2<int>();
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// expected-error@-1 {{no matching function for call to 'NoViableCands2'}}
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// expected-note@#NVC2{{candidate template ignored: constraints not satisfied}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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NoViableCands3<int>();
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// expected-error@-1 {{no matching function for call to 'NoViableCands3'}}
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// expected-note@#NVC3{{candidate template ignored: constraints not satisfied}}
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// expected-note@#NVC3REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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}
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template<typename T> requires CausesRecoveryExpr // #OVC1REQ
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void OtherViableCands1(){} // #OVC1
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template<typename T>
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void OtherViableCands1(){} // #OVC1_ALT
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template<typename T> requires ReferencesCRE<T> // #OVC2REQ
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void OtherViableCands2(){} // #OVC2
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template<typename T>
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void OtherViableCands2(){} // #OVC2_ALT
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template<ReferencesCRE T> // #OVC3REQ
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void OtherViableCands3(){} // #OVC3
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template<typename T>
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void OtherViableCands3(){} // #OVC3_ALT
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void OVCUse() {
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OtherViableCands1<int>();
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// expected-error@-1 {{no matching function for call to 'OtherViableCands1'}}
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// expected-note@#OVC1_ALT {{candidate function}}
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// expected-note@#OVC1 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OVC1REQ{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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OtherViableCands2<int>();
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// expected-error@-1 {{no matching function for call to 'OtherViableCands2'}}
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// expected-note@#OVC2_ALT {{candidate function}}
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// expected-note@#OVC2 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OVC2REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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OtherViableCands3<int>();
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// expected-error@-1 {{no matching function for call to 'OtherViableCands3'}}
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// expected-note@#OVC3_ALT {{candidate function}}
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// expected-note@#OVC3 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OVC3REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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}
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template<typename T> requires CausesRecoveryExpr // #OBNVC1REQ
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void OtherBadNoViableCands1(){} // #OBNVC1
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template<typename T> requires false // #OBNVC1REQ_ALT
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void OtherBadNoViableCands1(){} // #OBNVC1_ALT
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template<typename T> requires ReferencesCRE<T> // #OBNVC2REQ
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void OtherBadNoViableCands2(){} // #OBNVC2
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template<typename T> requires false// #OBNVC2REQ_ALT
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void OtherBadNoViableCands2(){} // #OBNVC2_ALT
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template<ReferencesCRE T> // #OBNVC3REQ
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void OtherBadNoViableCands3(){} // #OBNVC3
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template<typename T> requires false // #OBNVC3REQ_ALT
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void OtherBadNoViableCands3(){} // #OBNVC3_ALT
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void OBNVCUse() {
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OtherBadNoViableCands1<int>();
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// expected-error@-1 {{no matching function for call to 'OtherBadNoViableCands1'}}
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// expected-note@#OBNVC1_ALT {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OBNVC1REQ_ALT {{because 'false' evaluated to false}}
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// expected-note@#OBNVC1 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OBNVC1REQ{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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OtherBadNoViableCands2<int>();
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// expected-error@-1 {{no matching function for call to 'OtherBadNoViableCands2'}}
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// expected-note@#OBNVC2_ALT {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OBNVC2REQ_ALT {{because 'false' evaluated to false}}
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// expected-note@#OBNVC2 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OBNVC2REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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OtherBadNoViableCands3<int>();
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// expected-error@-1 {{no matching function for call to 'OtherBadNoViableCands3'}}
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// expected-note@#OBNVC3_ALT {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OBNVC3REQ_ALT {{because 'false' evaluated to false}}
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// expected-note@#OBNVC3 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#OBNVC3REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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}
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// Same tests with member functions.
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struct OVC {
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template<typename T> requires CausesRecoveryExpr // #MEMOVC1REQ
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void OtherViableCands1(){} // #MEMOVC1
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template<typename T>
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void OtherViableCands1(){} // #MEMOVC1_ALT
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template<typename T> requires ReferencesCRE<T> // #MEMOVC2REQ
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void OtherViableCands2(){} // #MEMOVC2
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template<typename T>
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void OtherViableCands2(){} // #MEMOVC2_ALT
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template<ReferencesCRE T> // #MEMOVC3REQ
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void OtherViableCands3(){} // #MEMOVC3
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template<typename T>
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void OtherViableCands3(){} // #MEMOVC3_ALT
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};
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void MemOVCUse() {
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OVC S;
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S.OtherViableCands1<int>();
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// expected-error@-1 {{no matching member function for call to 'OtherViableCands1'}}
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// expected-note@#MEMOVC1_ALT {{candidate function}}
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// expected-note@#MEMOVC1 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#MEMOVC1REQ{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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S.OtherViableCands2<int>();
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// expected-error@-1 {{no matching member function for call to 'OtherViableCands2'}}
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// expected-note@#MEMOVC2_ALT {{candidate function}}
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// expected-note@#MEMOVC2 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#MEMOVC2REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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S.OtherViableCands3<int>();
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// expected-error@-1 {{no matching member function for call to 'OtherViableCands3'}}
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// expected-note@#MEMOVC3_ALT {{candidate function}}
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// expected-note@#MEMOVC3 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#MEMOVC3REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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}
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struct StaticOVC {
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template<typename T> requires CausesRecoveryExpr // #SMEMOVC1REQ
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static void OtherViableCands1(){} // #SMEMOVC1
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template<typename T>
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static void OtherViableCands1(){} // #SMEMOVC1_ALT
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template<typename T> requires ReferencesCRE<T> // #SMEMOVC2REQ
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static void OtherViableCands2(){} // #SMEMOVC2
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template<typename T>
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static void OtherViableCands2(){} // #SMEMOVC2_ALT
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template<ReferencesCRE T> // #SMEMOVC3REQ
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static void OtherViableCands3(){} // #SMEMOVC3
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template<typename T>
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static void OtherViableCands3(){} // #SMEMOVC3_ALT
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};
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void StaticMemOVCUse() {
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StaticOVC::OtherViableCands1<int>();
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// expected-error@-1 {{no matching function for call to 'OtherViableCands1'}}
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// expected-note@#SMEMOVC1_ALT {{candidate function}}
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// expected-note@#SMEMOVC1 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#SMEMOVC1REQ{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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StaticOVC::OtherViableCands2<int>();
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// expected-error@-1 {{no matching function for call to 'OtherViableCands2'}}
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// expected-note@#SMEMOVC2_ALT {{candidate function}}
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// expected-note@#SMEMOVC2 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#SMEMOVC2REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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StaticOVC::OtherViableCands3<int>();
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// expected-error@-1 {{no matching function for call to 'OtherViableCands3'}}
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// expected-note@#SMEMOVC3_ALT {{candidate function}}
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// expected-note@#SMEMOVC3 {{candidate template ignored: constraints not satisfied}}
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// expected-note@#SMEMOVC3REQ{{because 'int' does not satisfy 'ReferencesCRE'}}
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// expected-note@#subst1{{because substituted constraint expression is ill-formed: constraint depends on a previously diagnosed expression}}
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}
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namespace GH58548 {
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template <class, class> struct formatter; // #primary-template
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template <class, class> struct basic_format_context {};
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template <typename CharType>
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concept has_format_function =
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format(basic_format_context<CharType, CharType>());
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template <typename ValueType, typename CharType>
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requires has_format_function<CharType>
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struct formatter<ValueType, CharType> {
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template <typename OutputIt>
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CharType format(basic_format_context<OutputIt, CharType>);
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};
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template <class Ctx> int handle_replacement_field(Ctx arg) {
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formatter<decltype(arg), int> ctx; // expected-error {{implicit instantiation of undefined template}}
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return 0;
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}
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int x = handle_replacement_field(0);
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// expected-note@-1 {{template specialization 'GH58548::handle_replacement_field<int>' requested here}}
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// expected-note@#primary-template {{is declared here}}
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} // GH58548
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