1. Introduction
  2. Variable Data-Type and Operator
    1. Variable
    2. Data Type
    3. Identifier name
    4. Variable Definition in C++
    5. Variable Declaration in C++
    6. Defining Constants
    7. Operator
      1. Arithmetic Operators
      2. Relational Operators
      3. Logical Operators
  3. Control Statement
    1. The if Statement
    2. The if – else statement
    3. The else if statement
    4. Nested if-else
    5. The switch statement
  4. Loop
    1. While loop
    2. Do while loop
    3. For loop
    4. Nested Loop
    5. Break, Continue And Go to label
  5. Function
    1. Declaration function
    2. Non Return Function
    3. Return Function
    4. Function Definition
  6. Array
    1. Declaration Array
      1. One Dimensional Array
      2. Two Dimensional Array
  7. Class and Object

5.4.Function Definition #

Function definition is a function body that noted what function will do.
Syntax 1:

Return_type Function_name (para 1, para 2,… , para n)
{
	statement 1;
        statement 2;
        ...
	statement n;
        return value;
}

Syntax 2:

Non Return type function_name(para 1, para 2,… , para n)
{
	statement 1;
        statement 2;
        ...
        statement n;
}

Example 1:

float sum(float v1, float v2, float v3)
{
	float s;
	s=v1+v2+v3;
	return s;
}

Example 2:

void sum1(float v1, float v2, float v3)
{
	float s1;
	s1=v1+v2+v3;
	cout<<“Sum of three values: “<<s1;
}

Example 3:

int maximum(int v1,v2,v3)
{
	int max;
	if(v1>v2&&v1>v3)
		max=v1;
	else if(v2>v1&&v2>v3)
		max=v2;
	else
		max=v3;
	return max;
}

Example 4:

void maximum(int v1,v2,v3)
{
	if(v1>v2&&v1>v3)
		cout<<"Maximum is: "<<v1; 
        else if(v2>v1&&v2>v3)
		cout<<"Maximum is: "<<v2; 
	else
		cout<<"Maximum is: "<<v3;
}
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