sceneNode->getName, how can I get rid of the const

[nayon]

Hello everyone, I'm trying to get the name of a sceneNode and store it into a variable of type c8* for later usage. But I can't seem to do it. What I do is:

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c8* name;
strcpy(name,const_cast<irr::c8*> (selectedSceneNode->getName()));

I tried separating it into steps, but the error happens at the const_cast. A memory location error. How can I solve this, is there an easy way?

[Sylence]

why don't you use const c8* ?
Then you could do

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const c8* name = node->getName();

Or you could simply use the string class

[nayon]

I don't want to use const because I will be changing the value of the variable "name", which I can't do with consts.

[Sylence]

Well then use core::string class

[vitek]

Hello everyone, I'm trying to get the name of a sceneNode and store it into a variable of type c8* for later usage. But I can't seem to do it. What I do is:

Code: Select all

c8* name;
strcpy(name,const_cast<irr::c8*> (selectedSceneNode->getName()));

I tried separating it into steps, but the error happens at the const_cast. A memory location error. How can I solve this, is there an easy way?

Note that the second parameter in the signature of strcpy is const char* (which is equivalent to const c8*)...

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char *strcpy(char *s1, const char *s2);

So the cast you are using is unnecessary. The problem is that you don't appear to understand how to use strcpy(). The first parameter is supposed to be a pointer to a sufficiently large buffer of characters, not an uninitialized pointer. Something like this...

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char name [32]; // assumes all names are less than 31 characters
strcpy (name, node->getName ());
// now you can modify the contents of the name buffer

It would be slightly more safe to use strncpy() or strdup(). As pointed out above, you could just use core::stringc to do what you need...

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core::stringc name = node->getName ();
// modify name using methods of the string class

Travis

[nayon]

Thank you. And R.I.P Vitek if your name refers to the Vitek I'm thinking about.

[vitek]

Actually it is my name (my last name), but I do know who you are talking about (the drummer for Decapitated).

Travis