each_char()
public
Calls the given block once for each character
in ios, passing the character as an argument. The stream must be
opened for reading or an IOError will be
raised.
f = File.new("testfile")
f.each_char {|c| print c, ' ' }
Show source
static VALUE
rb_io_each_char(VALUE io)
{
rb_io_t *fptr;
rb_encoding *enc;
VALUE c;
RETURN_ENUMERATOR(io, 0, 0);
GetOpenFile(io, fptr);
rb_io_check_readable(fptr);
enc = io_input_encoding(fptr);
READ_CHECK(fptr);
while (!NIL_P(c = io_getc(fptr, enc))) {
rb_yield(c);
}
return io;
}