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putchar()                Write a Character to Stdout

 #include   <stdio.h>

 int        putchar(c);
 int        c;                           Character to be written

    putchar() writes a single character to the standard output stream
    'stdout'.

    Returns:    The character written, if successful.  A return value of
                EOF indicates an error.  Since EOF is a legitimate value,
                use ferror() to verify that an error has occurred.

  -------------------------------- Example ---------------------------------

    The following statements print the letters of the alphabet to the
    screen.

         #include <stdio.h>

         int x;

         main()
         {
             for (x = 65; x < 91; x++)
                 putchar(x);
         }