For objects of class Rational, overload the unary operator " - ", and the declaration of the operator function is_______
A: void Rational::operator-();
B: friend Rational operator-( );
C: Rational Rational::operator-()
D: friend void operator-( Rational a );
A: void Rational::operator-();
B: friend Rational operator-( );
C: Rational Rational::operator-()
D: friend void operator-( Rational a );
举一反三
- The conditional operator (?:) ________. A: is the only ternary operator in C B: is a unary operator C: associates from left to right D: accepts two operands
- The ! operator is an unary operator.
- 若在类Number中用友元函数重载了乘法运算符“*”,则下列该重载函数说明中正确的是( )。 A: Number& operator*( Number&, Number&); B: Number& operator*( Number&); C: friend Number& operator*( Number&); D: friend Number& operator*( Number&, Number&);
- 若在类Number中用友元函数重载了乘法运算符“*”,则下列该重载函数说明中正确的是( )。 A: Number& operator*( Number&, Number&); B: Number& operator*( Number&); C: friend Number& operator*( Number&); D: friend Number& operator*( Number&, Number&);
- 若在类Number中用友元函数重载了乘法运算符“*”,则下列该重载函数说明中正确的是( )。 A: friend Number& operator*( Number&, Number&); B: Number& operator*( Number&, Number&); C: Number& operator*( Number&); D: friend Number& operator*( Number&);