Hi Pierre, Thanks for the reply, but where does that page talk about an EMPTY character constant? I pretty much understand character handling otherwise. :-)
Thanks, Matt ----- Original Message ----- From: "Pierre" Subject: Re: [PHP-DEV] Use of "empty character constant?" > On 7/8/06, Matt W wrote: > > Hi all, > > > > I'm a C newbie and just started experimenting with the PHP internals a > > couple weeks ago... A few days ago I noticed assignment/comparison of char > > variables to '' (nothing between single quotes) in, for example, the > > is_numeric_string function (zend_operators.h), snprintf.c, spprintf.c, etc. > > I don't understand what it's doing. :-/ The only references I can find are > > about "empty character constant" compiler errors, which is what happens if I > > try to use '' in the same way (VC++ Express). Though PHP compiles fine with > > these "constructs," so something must be special there? > > http://publications.gbdirect.co.uk/c_book/chapter5/character_handling.html > > Cheers, > --Pierre -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
