[C++] 함수 오버로딩

함수의 중복

#include <iostream>

void function(void){
 std::cout<<"function(void) call"<<std::endl;
}

void function(char c){
 std::cout<<"function(char c) call"<<std::endl;
}

void function(int a, int b){
 std::cout<<"function(int a, int b) call"<<std::endl;
}

int main(void)
{
 function();
 function('a');
 function(1, 2);

 return 0;
}




디폴트 매개변수
#include <iostream>

int function(int a=0){
 return a+1;
}

int main(void)
{
 std::cout<<function(11)<<std::endl;
 std::cout<<function()<<std::endl;

 return 0;
}







#include<iostream>

int BoxVolume(int length, int width=1, int height=1);

int main()
{
 std::cout<<"[3, 3, 3]       : "<<BoxVolume(3, 3, 3)<<std::endl;
 std::cout<<"[6, 6, def]     : "<<BoxVolume(6, 6)<<std::endl;
 std::cout<<"[9, def, def]   : "<<BoxVolume(9)<<std::endl;
 return 0;
}

int BoxVolume(int length, int width, int height)
{
 return length*width*height;
}