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43 lines
554 B
43 lines
554 B
4 months ago
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struct base
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{
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enum mode : short { in, out, top, bottom };
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enum state { pass, fail, unknown };
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typedef long int_type;
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};
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struct C1 : public base
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{
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mode _M_type;
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};
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// virtual by derivation
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struct C2 : virtual public base
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{
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mode _M_type;
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};
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// virtual by member function
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struct C3 : public base
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{
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mode _M_type;
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virtual ~C3() { };
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};
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// abstract virtual by member function
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struct C4 : public base
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{
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mode _M_type;
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virtual void foo() = 0;
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};
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int main()
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{
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C1 obj1;
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C2 obj2;
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C3 obj3;
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// C4 obj4; XXX abstract
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return 0;
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}
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