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Synopsis:
    #include <conio.h>
    int ungetch( int c );

Description:
    The ungetch function pushes the character specified by c back onto the
    input stream for the console.  This character will be returned by the
    next read from the console (with  getch or  getche functions) and will
    be detected by the function  kbhit.  Only the last character returned in
    this way is remembered.

    The ungetch function clears the end-of-file indicator, unless the value
    of c is  EOF.

Returns:
    The ungetch function returns the character pushed back.

See Also:
    getch, getche, kbhit, putch

Example:
    #include <stdio.h>
    #include <ctype.h>
    #include <conio.h>

    void main()
      {
        int c;
        long value;

        value = 0;
        c = getche();
        while( isdigit( c ) ) {
            value = value*10 + c - '0';
            c = getche();
        }
        ungetch( c );
        printf( "Value=%ld\n", value );
      }

Classification:
    WATCOM

Systems:
    All