c++ programs

Author: harshitbansal373

CallByAddress.cpp

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+//call by address
+
+#include<iostream>
+using namespace std;
+
+int sum (int*,int*);
+int main(){
+	int a=5,b=6;
+	int s=sum(&a,&b);
+	cout<<"sum is "<<s;
+	return 0;
+}
+
+int sum(int *p,int *q){
+	return(*p+*q);
+}

CallByReference.cpp

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+//call by Reference
+
+#include<iostream>
+using namespace std;
+
+int sum (int &,int &);
+int main(){
+	int a=5,b=6;
+	int s=sum(a,b);
+	cout<<"sum is "<<s;
+	return 0;
+}
+
+int sum(int &x,int &y){
+	return(x+y);
+}

CallByValue.cpp

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+//call by value
+
+#include<iostream>
+using namespace std;
+
+int sum (int,int);
+int main(){
+	int a=5,b=6;
+	int s=sum(a,b);
+	cout<<"sum is "<<s;
+	return 0;
+}
+
+int sum(int x,int y){
+	return(x+y);
+}