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22 lines
230 B
C++
22 lines
230 B
C++
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namespace virtual2 {
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struct A
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{
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virtual int f1() { return 10; }
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};
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struct B: A
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{
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virtual int f2() { return 20; }
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};
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int call(A*a)
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{
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int r = a->f1();
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B* b = dynamic_cast<B*>(a);
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return r + b->f2();
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}
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}
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