Re: Ike Naar

nick_keighley_nospam@xxxxxxxxxxx said:

<snip>

[...] I believe (meaning I can' remember where I read it)
that this is problematic

assert (p);

that it needs to be replaced with

assert (p != 0);

to be safe

Yes, that's required in C90 because assert requires an integer
expression (specifically, a value of type int). In C99, however,
assert(p) is safe because the requirement was slackened, so that
only a scalar expression is needed - and pointer values count as
scalar expressions. I wouldn't do it that way myself, partly
because C99 isn't portable enough yet but mostly because I prefer
to use relational expressions in cases where the object is not
specifically intended "booleanly", so to speak. Thus, I'm okay with
if(is_printer_ready) but not okay with if(balance). I recognise
that this is just a style thing, of course (in C99).

<snip>

--
Richard Heathfield <http://www.cpax.org.uk>
Email: -http://www. +rjh@
Google users: <http://www.cpax.org.uk/prg/writings/googly.php>
"Usenet is a strange place" - dmr 29 July 1999
.

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