Re: question about new and delete operator

From:
"Bo Persson" <bop@gmb.dk>
Newsgroups:
comp.lang.c++
Date:
Tue, 7 Jul 2009 18:06:01 +0200
Message-ID:
<7bha3aF242tntU1@mid.individual.net>
Hendrik Schober wrote:

Paavo Helde wrote:

Hendrik Schober <spamtrap@gmx.de> kirjutas:
[...]

Why 'int'? Will there ever be a sequence of -5 bytes?


We have had this discussion before in this group, several times.


I'm sorry I missed this. I'm not a regular reader. I don't
have enough time to be. Feel free to ignore any discussion
stemming from this.

                                                                In
C++, the unsigned types are quite specific types with special
rollover effects and there are tricky promotion rules for
mixed-signedness arithmetic expressions. Unless unsignedness is
strongly needed, I would avoid those types.


Well, call me strict, but I happen to believe that, for
specifying sizes, unsignedness is strongly needed. I also
believe that, if a positive value is needed in order to
call a function, the function's interface should say so.


But that doesn't save you from anyone passing a -5, as that will
"work" for an unsigned parameter as well.

Bo Persson

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