86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
// RUN: %clang_cc1 -std=c++11 -fexceptions -fcxx-exceptions -fsyntax-only -verify %s
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// Assignment of function pointers.
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struct A
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{
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};
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struct B1 : A
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{
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};
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struct B2 : A
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{
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};
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struct D : B1, B2
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{
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};
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struct P : private A
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{
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};
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// Some functions to play with below.
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void s1() throw();
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void s2() throw(int);
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void s3() throw(A);
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void s4() throw(B1);
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void s5() throw(D);
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void s6();
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void s7() throw(int, float);
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void (*s8())() throw(B1); // s8 returns a pointer to function with spec
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void s9(void (*)() throw(B1)); // s9 takes pointer to function with spec
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void s10() noexcept;
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void s11() noexcept(true);
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void s12() noexcept(false);
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void fnptrs()
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{
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// Assignment and initialization of function pointers.
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void (*t1)() throw() = &s1; // valid
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t1 = &s2; // expected-error {{not superset}}
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t1 = &s3; // expected-error {{not superset}}
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void (&t2)() throw() = s2; // expected-error {{not superset}}
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void (*t3)() throw(int) = &s2; // valid
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void (*t4)() throw(A) = &s1; // valid
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t4 = &s3; // valid
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t4 = &s4; // valid
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t4 = &s5; // expected-error {{not superset}}
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void (*t5)() = &s1; // valid
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t5 = &s2; // valid
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t5 = &s6; // valid
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t5 = &s7; // valid
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t1 = t3; // expected-error {{not superset}}
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t3 = t1; // valid
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void (*t6)() throw(B1);
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t6 = t4; // expected-error {{not superset}}
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t4 = t6; // valid
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t5 = t1; // valid
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t1 = t5; // expected-error {{not superset}}
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// return types and arguments must match exactly, no inheritance allowed
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void (*(*t7)())() throw(B1) = &s8; // valid
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void (*(*t8)())() throw(A) = &s8; // expected-error {{return types differ}}
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void (*(*t9)())() throw(D) = &s8; // expected-error {{return types differ}}
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void (*t10)(void (*)() throw(B1)) = &s9; // valid
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void (*t11)(void (*)() throw(A)) = &s9; // expected-error {{argument types differ}}
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void (*t12)(void (*)() throw(D)) = &s9; // expected-error {{argument types differ}}
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}
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// Member function stuff
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struct Str1 { void f() throw(int); }; // expected-note {{previous declaration}}
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void Str1::f() // expected-error {{missing exception specification}}
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{
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}
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void mfnptr()
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{
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void (Str1::*pfn1)() throw(int) = &Str1::f; // valid
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void (Str1::*pfn2)() = &Str1::f; // valid
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void (Str1::*pfn3)() throw() = &Str1::f; // expected-error {{not superset}}
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}
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