32 lines
647 B
C++
32 lines
647 B
C++
/* []与() 运算符重载 */
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#include <iostream>
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using namespace std;
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class X {
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public:
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int operator()(int i = 0) {
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cout << "X::operator(" << i << ")" << endl;
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return i;
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};
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int operator()(int i, int j) {
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cout << "X::operator(" << i << "," << j << ")" << endl;
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return i;
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};
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int operator[](int i) {
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cout << "X::operator[" << i << "]" << endl;
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return i;
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};
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int operator[](char *cp) {
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cout << "X::operator[" << cp << "]" << endl;
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return 0;
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};
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};
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int main(void) {
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X obj;
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int i = obj(obj(1), 2);
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int a = obj[i];
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int b = obj["abcd"];
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cout << "a=" << a << endl;
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cout << "b=" << b << endl;
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}
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