C++
C++ passing reference to pointer
GOD03219
2018. 9. 12. 22:38
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#include<iostream>
#include<cstdlib>
#include"input.h"
#include"operators.h"
#include"disp.h"
using namespace std;
class Calculation{
int *a;
int*b;
char *c;
float *res;
public : Calculation(){
a=new int;
b=new int;
c=new char;
res=new float;
}
void cac(){
input(*a,b,&c);
*res=operators(a,b,c);
disp(res);
}
};
void main(){
Calculation *ca = new Calculation;
ca->cac();
delete ca;
ca=NULL; }
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cs |
// input.h
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#include<iostream>
using namespace std;
void input(int &a, int *&b, char **c){
cout << "숫자 1 입력 :";
cin >> a;
cout << "연산자 입력 :";
cin >> **c;
cout << "숫자 2 입력 :" ;
cin >> *b;
} |
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// operators.h
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#include<iostream>
using namespace std;
float operators(int *&a, int *&b ,char *&c){
float res;
switch(*c){
case '+': res= (float)*a+*b; break;
case '-': res=(float)*a-*b; break;
case '*': res=(float)*a * *b; break;
case '/':res=(float)*a / *b ; break;
default: cout << "wrong input"; break;
}
return res;
} |
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// disp.h
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#include<iostream>
using namespace std;
void disp(float *&res){
cout << *res<<endl;
} |
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