C++ getchar()

getchar() prototype

int getchar();

The getchar() function is equivalent to a call to getc(stdin). It reads the next character from stdin which is usually the keyboard.

It is defined in <cstdio> header file.

getchar() Parameters


getchar() Return value

  • On success, the getchar() function returns the entered character.
  • On failure, it returns EOF.
    • If the failure is caused due to end of file condition, it sets the eof indicator on stdin.
    • If the failure is caused by some other error, it sets the error indicator on stdin.

Example: How getchar() function works

#include <iostream>
#include <cstdio>

using namespace std;

int main()
    int c,i=0;
    char str[100];
    cout << "Enter characters, Press Enter to stop\n";
        c = getchar();
        str[i] = c;
    } while(c!='\n');
    cout << str;
    return 0;

When you run the program, a possible output will be:

Enter characters, Press Enter to stop
rtq paSd12 6.2 haQ
rtq paSd12 6.2 haQ

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