C + + overloaded functions

General function Overloading Sample program:

#include <iostream>#include<string>using namespacestd;//overloading: 1. In the same scope (in the same class, in the same file),//2. The function method name is the same,//3. But the parameters are different (number, type, order)//Special overloads: 1, Constant function overloading 2, operator overloading//function overloading is the same as function name, there are 3 cases of function overloading: Different parameter types, different number of parameters, different order of parameters//1. Different parameter typesintAddintNUM1,intnum2) {cout<<"int Add (int num1,int num2)"<<Endl; returnnum1+num2;}//--floatAddfloatNUM1,floatnum2) {cout<<"float Add (float num1,float num2)"<<Endl; returnnum1+num2;}//2. Different number of parametersintAddintNUM1,intNUM2,intnum3) {cout<<"int Add (int num1,int num2,int num3)"<<Endl; returnnum1+num2+num3;}//3. Parameter order is differentfloatAddintNUM1,floatnum2) {cout<<"float Add (int num1,float num2)"<<Endl; returnnum1+num2;}//--floatAddfloatNUM1,intnum2) {cout<<"float Add (float num1,int num2)"<<Endl; returnnum1+num2;}intMain () {//1. Different parameter types    intnum; Num= Add (2,3);//Show "int add (int num1,int num2)"cout << Num <<Endl; //2. Different number of parametersnum = Add (1,2,3);//Show "int add (int num1,int num2,int num3)"cout << Num <<Endl; //3. Parameter order is different    floatFnum; Fnum= Add (1,1.1f);//Show "float Add (int num1,float num2)"cout << Fnum <<Endl; Fnum= Add (1.1f,1);//Show "float Add (float num1,int num2)"cout << Fnum <<Endl;}

C + + overloaded functions