derek.holloway
7502bf64a4
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102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
// RUN: %clang_cc1 -fexceptions -fcxx-exceptions -fsyntax-only -verify %s
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struct A {
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static constexpr bool x = true;
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};
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namespace N0 {
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template<typename T, typename U>
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void f(T, U) noexcept(T::y); // #1
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template<typename T, typename U> // #2
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void f(T, U*) noexcept(T::x);
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// Deduction should succeed for both candidates, and #2 should be selected as the primary template.
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// Only the exception specification of #2 should be instantiated.
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template<>
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void f(A, int*) noexcept;
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}
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namespace N1 {
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template<typename T, typename U>
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void f(T, U) noexcept(T::x); // #1
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template<typename T, typename U>
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void f(T, U*) noexcept(T::y); // #2
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// expected-error@-1 {{no member named 'y' in 'A'}}
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// Deduction should succeed for both candidates, and #2 should be selected as the primary template.
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// Only the exception specification of #2 should be instantiated.
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template<>
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void f(A, int*) noexcept; // expected-error {{exception specification in declaration does not match previous declaration}}
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// expected-note@-1 {{in instantiation of exception specification for 'f<A, int>' requested here}}
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// expected-note@-2 {{previous declaration is here}}
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}
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namespace N2 {
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template<typename T, typename U>
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void f(T, U) noexcept(T::x);
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template<typename T, typename U>
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void f(T, U*) noexcept(T::x);
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template<typename T, typename U>
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void f(T, U**) noexcept(T::y); // expected-error {{no member named 'y' in 'A'}}
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template<typename T, typename U>
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void f(T, U***) noexcept(T::x);
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template<>
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void f(A, int*) noexcept; // expected-note {{previous declaration is here}}
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template<>
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void f(A, int*); // expected-error {{'f<A, int>' is missing exception specification 'noexcept'}}
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template<>
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void f(A, int**) noexcept; // expected-error {{exception specification in declaration does not match previous declaration}}
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// expected-note@-1 {{in instantiation of exception specification for 'f<A, int>' requested here}}
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// expected-note@-2 {{previous declaration is here}}
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// FIXME: Exception specification is currently set to EST_None if instantiation fails.
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template<>
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void f(A, int**);
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template<>
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void f(A, int***) noexcept; // expected-note {{previous declaration is here}}
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template<>
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void f(A, int***); // expected-error {{'f<A, int>' is missing exception specification 'noexcept'}}
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}
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namespace N3 {
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template<typename T, typename U>
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void f(T, U) noexcept(T::y); // #1
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template<typename T, typename U> // #2
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void f(T, U*) noexcept(T::x);
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// Deduction should succeed for both candidates, and #2 should be selected by overload resolution.
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// Only the exception specification of #2 should be instantiated.
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void (*x)(A, int*) = f;
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}
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namespace N4 {
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template<typename T, typename U>
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void f(T, U) noexcept(T::x); // #1
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template<typename T, typename U>
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void f(T, U*) noexcept(T::y); // #2
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// expected-error@-1 {{no member named 'y' in 'A'}}
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// Deduction should succeed for both candidates, and #2 should be selected by overload resolution.
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// Only the exception specification of #2 should be instantiated.
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void (*x)(A, int*) = f; // expected-note {{in instantiation of exception specification for 'f<A, int>' requested here}}
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}
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