🚀 go-pugleaf

Following the standard, all find() member functions for string
return string::size_type and may have the value string::npos,
which is (size_type)-1.

I have some problems with that:
 1.) If i understand it right I have to write:

	string::size_type pos;

	pos = s.find('x');
	if (pos == string::npos)
		// not found
		...

    This seems unhandy und thus dangerous as people might
    try to make the code simpler:
    For example:
	int pos
	pos = s.find('x');
	if (pos == string::npos)
    or even
	if (pos == -1)

    The problem is that the test with operator== fails if
	sizeof(size_type) != sizeof(int)
    because unfortunately then
	(size_type)-1 is not -1
    This is due to the conversion to unsigned.

    Am I missing something or are these problems known?
    Why wasn't taken a simpler and safer interface?

 2.) I wonder what "npos" means.
     Could somebody tell me?

--------
Nico                             address: BREDEX GmbH
email:   nico@bredex.de                   Nicolai Josuttis
                                          Fallersleber-Tor-Wall 23
phone:   +49 531 24330-0                  D-38100 Braunschweig
fax:     +49 531 24330-99                 Germany
--------


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