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Join Date: Jul 2005
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C++ const help I'm not that used to C++ and hoping that someone can help me out with the const keyword. If I make a parameter to a function 'const' ,and then try to reference it, like:
to do something with it, the compiler gives the "invalid conversion from const char* to char*" when I try to pass in a parameter. The question is, is there some way to reference the 'param' while keeping it constant? or how can I fix the error message? Thanks in advance
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Why not just use std::strings?
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Join Date: Aug 2005
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you can do this:
char* ptr = const_cast<char*>(param;), but that defeats the purpose of using const in the first place. Casting out the const should be avoided whenever possible. Last edited by Ancient Dragon : Feb 12th, 2007 at 1:39 pm.
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Either using :
But it would be interesting to know what you are trying to achieve here.....
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But it would be interesting to know what you are trying to achieve here.....
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Basically, I need to step through any array using pointers instead of the array indices. I changed my char* ptr to const char* ptr and it does work. Thanks.
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Originally Posted by blackjack 
Basically, I need to step through any array using pointers instead of the array indices. I changed my char* ptr to const char* ptr and it does work. Thanks.
const char* copy do you any good? Neither pointer can you modify, so copying it would be sort of pointless (sorry, bad pun). tuxation.com - Linux articles, tutorials, and discussions
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