putchr
putchr('\n');
putchr('\n');
putchr('?');
putchr('?');
putchr('\n');
putchr('\n');
putchr('\n');
putchr(r + '0');
putchr('\n');
putchr('\n');
putchr((unsigned char)*sp++);
putchr((unsigned char)*sp++);
putchr('$'); /* end of line is marked with a $ */
putchr('$'); /* end of line is marked with a $ */
putchr('\n');
static void putchr(unsigned char);
putchr('\t');
putchr('\n');
putchr(t);
putchr(t);
putchr(t);
static void putchr(wchar_t);