Count number of times a function is called
Write a C++ program to Count number of times a function is called. Here’s simple C++ program to Count the number of times a function is called by objects in C++ Programming Language.
What are Functions ?
Function is a block of statements that performs some operations. All C++ programs have at least one function – function called “main()”. This function is entry-point of your program.
A function declaration tells the compiler about a function’s name, return type, and parameters. A function definition provides the actual body of the function.
Defining a Function : :
The general form of a C++ function definition is as follows:
return_type Function_Name( list of parameters )
{
//function’s body
}
- return_type : suggests what the function will return. It can be void, int, char, some pointer or even a class object.
- Function_Name : is the name of the function, using the function name it is called.
- Parameters : are variables to hold values of arguments passed while function is called. A function may or may not contain parameter list.
- Function body : is he part where the code statements are written.
Below is the source code for C++ program to Count number of times a function is called which is successfully compiled and run on Windows System to produce desired output as shown below :
SOURCE CODE : :
/* C++ program to Count number of times a function is called */ #include<iostream> using namespace std; class square { private: int n,r; float n1,r1; static int b; public: void input(); void calc(); void display(); }; int square::b=0; void square::input() { cout<<"Enter an integer:"; cin>>n; cout<<"Enter a float no.:"; cin>>n1; b++; } void square::calc() { r=n*n; r1=n1*n1; b++; } void square::display() { cout<<"Square of integer:"<<r; cout<<"\nSquare of float:"<<r1; cout<<"\nFunction is called "<<b<<" times by the objects"; } int main() { square s; s.input(); s.calc(); s.display(); }
OUTPUT : :
/* C++ program to Count number of times a function is called */ Enter an integer :: 6 Enter a float no. :: 2.5 Square of integer [ 6 ] = 36 Square of float [ 2.5 ] = 6.25 Function is called [ 2 ] times by the objects Process returned 0
Above is the source code for C++ program to Count number of times a function is called which is successfully compiled and run on Windows System.The Output of the program is shown above .
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Thanks for reading the post….
In this question, it is also calling display function then also b should b++.
When we write b++; in the display () function, the number of times a function is called is still showing 2…..why is it not changing??
please change the text color of all the codes written. it is very difficult in reading grey text in black background.
When we write b++; in the display () function, the number of times a function is called is still showing 2…..why is it not changing??