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12 - functions/check_even_odd_using_func.cpp

@@ -0,0 +1,15 @@
+#include <iostream>
+using namespace std;
+void checkNum(int); 	//prototype
+int main() {
+	checkNum(12);
+	checkNum(5);
+	return 0;
+}
+//define
+inline void checkNum(int num) {
+	if(num%2==0)
+		cout<<"Even"<<endl;
+	else
+		cout<<"Odd"<<endl;
+}

12 - functions/func_ex1.cpp

@@ -0,0 +1,11 @@
+#include <iostream>
+using namespace std;
+void fun();	//prototype
+int main() {
+	fun();
+	return 0;
+}
+//define
+void fun() {
+	cout<<"Hello World";
+}

12 - functions/function_overloading_ex1.cpp

@@ -0,0 +1,15 @@
+#include<iostream>
+using namespace std;
+void add(int,int);
+void add(float,float);
+int main() {
+	add(10,5);		//int add
+	add(10.5f, 5.5f);	//float add
+	return 0;
+}
+void add(int a, int b) {
+	cout<<a+b<<endl;
+}
+void add(float a, float b) {
+	cout<<a+b<<endl;
+}

12 - functions/function_overloading_ex2.cpp

@@ -0,0 +1,21 @@
+#include <iostream>
+//OVERLOADING
+using namespace std;
+int sum(int a, int b) {
+	return a+b;
+}
+float sum(float a, float b){
+	return a+b;
+}
+int sum(int a, int b, int c) {
+	return a+b+c;
+}
+int sum(int a, int b, int c, int d) {
+	return a+b+c+d;
+}
+int main() {
+	cout<<sum(1,2)<<endl;
+	cout<<sum(1,2,3)<<endl;
+	cout<<sum(1,2,3,4)<<endl;
+	cout<<sum(1.5f, 2.25f)<<endl;
+}

12 - functions/function_sum_square.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+using namespace std;
+void sum(int,int);	//declare (prototype)
+int square(int);	//declare (prototype)
+int main() {
+	int a=5,b=10;
+	sum(a,b);
+	cout<<endl<<"Square is : "<<square(5);
+	return 0;
+}
+//define
+void sum(int a, int b) {
+	cout<<"Sum is : "<<a+b;
+}
+//define
+int square(int x) {
+	return x*x;
+}

12 - functions/inline_func_ex1.cpp

@@ -0,0 +1,9 @@
+#include <iostream>
+using namespace std;
+inline void show() {
+	cout<<"Hello World";
+}
+int main() {
+	show();
+	return 0;
+}

12 - functions/inline_func_ex2.cpp

@@ -0,0 +1,9 @@
+#include <iostream>
+using namespace std;
+inline int sum(int x=0, int y=0) {
+	return x+y;
+}
+int main() {
+	cout<<"Sum is : "<<sum(50);
+	return 0;
+}

12 - functions/min_max_func.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+#include <cmath>
+
+//Built In Functions with is already written in header files.
+
+using namespace std;
+int main() {
+//	cout<<max(10, 20, 30)<<endl; (ERROR)
+//	we can only pass two arguments in the max(), min() func.
+	cout<<max(10, 20)<<endl;
+	cout<<min(10, 20)<<endl;
+	return 0;
+}