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42 lines
2.0 KiB
42 lines
2.0 KiB
4 months ago
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// RUN: %clang_cc1 -std=c++11 %s -verify -fcxx-exceptions
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// We permit overriding an implicit exception specification with an explicit one
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// as an extension, for compatibility with existing code.
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struct S {
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void a(); // expected-note {{here}}
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~S(); // expected-note {{here}}
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void operator delete(void*); // expected-note {{here}}
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};
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void S::a() noexcept {} // expected-error {{does not match previous}}
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S::~S() noexcept {} // expected-warning {{function previously declared with an implicit exception specification redeclared with an explicit exception specification}}
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void S::operator delete(void*) noexcept {} // expected-warning {{function previously declared with an implicit exception specification redeclared with an explicit exception specification}}
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struct T {
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void a() noexcept; // expected-note {{here}}
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~T() noexcept; // expected-note {{here}}
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void operator delete(void*) noexcept; // expected-note {{here}}
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};
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void T::a() {} // expected-error {{missing exception specification 'noexcept'}}
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T::~T() {} // expected-warning {{function previously declared with an explicit exception specification redeclared with an implicit exception specification}}
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void T::operator delete(void*) {} // expected-warning {{function previously declared with an explicit exception specification redeclared with an implicit exception specification}}
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// The extension does not extend to function templates.
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template<typename T> struct U {
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T t;
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~U(); // expected-note {{here}}
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void operator delete(void*); // expected-note {{here}}
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};
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template<typename T> U<T>::~U() noexcept(true) {} // expected-error {{exception specification in declaration does not match previous declaration}}
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template<typename T> void U<T>::operator delete(void*) noexcept(false) {} // expected-error {{exception specification in declaration does not match previous declaration}}
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// Make sure this restriction interacts properly with __attribute__((noreturn))
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void __attribute__ ((__noreturn__)) PR17110(int status) throw();
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void PR17110(int status) throw();
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