若要对类BigNumber中重载的类型转换运算符long进行声明,下列选项中正确的是
题型:单项选择题
问题:
若要对类BigNumber中重载的类型转换运算符long进行声明,下列选项中正确的是
A.operator long() const;
B.operator long(BigNumber);
C.long operator long() const;
D.long operator long(BigNumber);
若要对类BigNumber中重载的类型转换运算符long进行声明,下列选项中正确的是
A.operator long() const;
B.operator long(BigNumber);
C.long operator long() const;
D.long operator long(BigNumber);