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C++ questions in Off Topic

ID:277350 Feb 2 2007, 9:54 am
Xx Dark Wizard xX	Can I use the operator keyword to make a ** operator? Is it considered bad programming to use a char as a very small integer? Should I use CLR ? And in CLR what does the ^ operator do ? (not Xor)

#1 Feb 2 2007, 3:56 pm

Crispy

Xx Dark Wizard xX wrote:

Can I use the operator keyword to make a ** operator?

No.

Is it considered bad programming to use a char as a very small integer?

It's not very conceptually "clean", but everyone does it (probably because there isn't any better way). So if you really need a 1-byte integer, go for it. (However, do consider whether you need a 1-byte integer. Often you don't. Saving 1 byte is not worth it.)

Should I use CLR ?

In my opinion, no. At the very least you should learn the standard way first. It's not standard when used when C++. If you want to learn it (not a bad idea - it's worth getting experience with as many languages as possible), then learn a language that's designed for it, like C#.

And in CLR what does the ^ operator do ? (not Xor)

In C++ it's bitwise XOR. I don't know what it is in C#.

#2 Feb 3 2007, 12:27 pm
Shlaklava	Xx Dark Wizard xX wrote: Can I use the operator keyword to make a ** operator? You can only use: + - * / -> [] == = ++ -- new delete (You have to look to find the prefix version specifications for those) <hr> Thats all I could remember, I probably forgot some. Also, don't operator overload something that is going to make no sense (like subrtaction using +).

#3 Feb 5 2007, 1:35 pm

In response to Crispy (#1)

Xx Dark Wizard xX

Crispy wrote:

In C++ it's bitwise XOR. I don't know what it is in C#.

In the main() I saw it in there.

int main(array<System::String ^> ^args)

#4 Feb 5 2007, 7:43 pm In response to Xx Dark Wizard xX (#3)
Crispy	I have no idea what that is. Maybe some kind of weird pointer syntax. Go look up a C# site, it should explain it there.

#5 Feb 6 2007, 8:29 am In response to Crispy (#4)
Xx Dark Wizard xX	It's not C#. It is CLR C++. C# doesen't allow ypu to use pointers without unsafe in it. And the /unsafe compiler option. It is some string operator.

#6 Feb 6 2007, 3:33 pm In response to Xx Dark Wizard xX (#5)
Crispy	Actually, it is to do with pointers. Not strings. Five minutes with Google could have told you this (which is what I just spent). http://blogs.msdn.com/branbray/archive/2003/11/17/51016.aspx