putc

/*
 *  call-seq:
 *     ios.putc(obj)    => obj
 *  
 *  If <i>obj</i> is <code>Numeric</code>, write the character whose
 *  code is <i>obj</i>, otherwise write the first character of the
 *  string representation of  <i>obj</i> to <em>ios</em>.
 *     
 *     $stdout.putc "A"
 *     $stdout.putc 65
 *     
 *  <em>produces:</em>
 *     
 *     AA
 */

static VALUE
rb_io_putc(io, ch)
    VALUE io, ch;
{
    char c = NUM2CHR(ch);

    rb_io_write(io, rb_str_new(&c, 1));
    return ch;
}