getchar( ) is a function that takes a single input character from standard input. The major difference between getchar( ) and getc( ) is that getc( ) can take input from any number of input streams but getchar( ) can take input from a single standard input stream.

It is present inside the stdin.h C library. Just like getchar, there is also a function called putchar( ) that prints only one character to the standard output screen

Syntax:

int getchar(void);

Return Type: The input from the standard input is read as an unsigned char and then it is typecasted and returned as an integer value(int) or EOF(End Of File). A EOF is returned in two cases, 1. when file end is reached. 2. When there is an error during execution.

Example:

// C++ Program to implement
// Use of getchar()
#include <cstdio>
#include <iostream>

using namespace std;

int main()
{
    char x;

    x = getchar();
    cout << "The entered character is : " << x;

    return 0;
}

// C++ Program to implement

// Use of getchar()

#include <cstdio>

#include <iostream>

​

using namespace std;

​

int main()

{

    char x;

​

    x = getchar();

    cout << "The entered character is : " << x;

​

    return 0;

}

Output: 

Example :

// C++ Program to implement
// Use of getchar() and putchar()
#include <cstdio>
#include <iostream>

using namespace std;

int main()
{
    char x;

    x = getchar();

    cout << "The entered character is : ";
    putchar(x);

    return 0;
}

// C++ Program to implement

// Use of getchar() and putchar()

#include <cstdio>

#include <iostream>

​

using namespace std;

​

int main()

{

    char x;

​

    x = getchar();

​

    cout << "The entered character is : ";

    putchar(x);

​

    return 0;

}

Output: