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clrscr() Function in C++ Programming Language
clrscr() Function in C++
It is a predefined function in "conio.h" (console input output header file) used to clear the console screen. It is a predefined function, by using this function we can clear the data from console (Monitor). Using of clrscr() is always optional but it should be place after variable or function declaration only.
It is often used at the beginning of the program (mostly after variable declaration but not necessarily) so that the console is clear for our output.
/* clrscr() function is also a non-standard function defined in "conio.h" header. This function is used to clear the console screen. It is often used at the beginning of the program (mostly after variable declaration but not necessarily) so that the console is clear for our output.*/
#include<iostream.h>
#include<conio.h>
void main()
{
int a=10, b=20;
int sum=0;
clrscr(); // use clrscr() after variable declaration
sum=a+b;
cout<<"Sum: "<<sum;
//clear the console screen
clrscr();
getch();
}
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