71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
// Tests virtual function calls. As virtual destructors influence
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// vtables this tests also needs to cover all combinations of
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// virtual destructors in the derived/base class.
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struct BaseWithVirtDtor {
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virtual ~BaseWithVirtDtor() {}
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virtual int foo() { return 1; }
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};
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struct BaseWithoutVirtDtor {
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virtual int foo() { return 2; }
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};
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struct DerivedWithVirtDtor : BaseWithVirtDtor {
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virtual ~DerivedWithVirtDtor() {}
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virtual int foo() { return 3; }
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};
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struct DerivedWithoutVirtDtor : BaseWithoutVirtDtor {
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virtual int foo() { return 4; }
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};
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struct DerivedWithBaseVirtDtor : BaseWithVirtDtor {
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virtual int foo() { return 5; }
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};
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struct DerivedWithVirtDtorButNoBaseDtor : BaseWithoutVirtDtor {
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virtual ~DerivedWithVirtDtorButNoBaseDtor() {}
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virtual int foo() { return 6; }
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};
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struct DerivedWithOverload : BaseWithVirtDtor {
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virtual ~DerivedWithOverload() {}
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virtual int foo(int i) { return 7; }
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};
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struct DerivedWithOverloadAndUsing : BaseWithVirtDtor {
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virtual ~DerivedWithOverloadAndUsing() {}
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using BaseWithVirtDtor::foo;
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virtual int foo(int i) { return 8; }
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};
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int main() {
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// Declare base classes.
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BaseWithVirtDtor base_with_dtor;
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BaseWithoutVirtDtor base_without_dtor;
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// Declare all the derived classes.
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DerivedWithVirtDtor derived_with_dtor;
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DerivedWithoutVirtDtor derived_without_dtor;
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DerivedWithBaseVirtDtor derived_with_base_dtor;
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DerivedWithVirtDtorButNoBaseDtor derived_with_dtor_but_no_base_dtor;
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DerivedWithOverload derived_with_overload;
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DerivedWithOverloadAndUsing derived_with_overload_and_using;
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// The previous classes as their base class type.
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BaseWithVirtDtor &derived_with_dtor_as_base = derived_with_dtor;
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BaseWithoutVirtDtor &derived_without_as_base = derived_without_dtor;
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BaseWithVirtDtor &derived_with_base_dtor_as_base = derived_with_base_dtor;
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BaseWithoutVirtDtor &derived_with_dtor_but_no_base_dtor_as_base = derived_with_dtor_but_no_base_dtor;
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// Call functions so that they are compiled.
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int i = base_with_dtor.foo() + base_without_dtor.foo() +
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derived_with_dtor.foo() + derived_without_dtor.foo() +
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derived_with_base_dtor.foo() + derived_with_overload.foo(1)
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+ derived_with_overload_and_using.foo(2)
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+ derived_with_overload_and_using.foo();
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return i; // break here
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}
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