Converting std::string to irr::c8*

[Memorial76]

I tried to search all over the web but couldn't any satisfying solution. Here is my problem:

I have a .txt in which i write some information about my objects. Of course, I use std::strings and streams to deal with that and it works.

But I can't give Irrlicht std::strings as parameters (as filenames for example) and i can't find any convertion method to transform my std::strings to irr::c8* as required.

Does any of you has a solution?
Is there another way to read txt files through Irrlicht?

Thanks for all

[Lambda]

Code: Select all

	std::string str = "Hello, world";
	irr::c8* str2 = str.c_str();

[Memorial76]

Code: Select all

	std::string str = "Hello, world";
	irr::c8* str2 = str.c_str();

Nope, it doesn't work:

1>c:\documents and settings\mes documents\programmation\toolbox.cpp(109) : error C2440: 'initialisation' : impossible de convertir de 'const char *' en 'irr::c8 *'
1> La conversion perd les qualificateurs

As i said i searched solutions over the net, it would have been too easy!!!

[jpoag]

The error says you're missing the 'const' modifier. Either add 'const' to the str2 declaration or use C-Style typecasting on the c_str() return.

[r2d2]

You could use irrlicht's stringc class.

Code: Select all

std::string test = "testing";
core::stringc test2 = test.c_str();

[Memorial76]

The error says you're missing the 'const' modifier. Either add 'const' to the str2 declaration or use C-Style typecasting on the c_str() return.

Yes, that is true, but when I modify all my parameters to 'const' my program does no longer work properly. It seems that the chain is modified because the program crashes with a problem like "pointer to 0". This may be due to my functions, i'm gonna have a closer look at it. Thanks a lot!

[Memorial76]

this is the error

Exception non gérée à 0x0041271e dans Asgard.exe : 0xC0000005: Violation d'accès lors de la lecture de l'emplacement 0x00000000.

[Memorial76]

Thanks a lot to all,
finally it works perfectly well with c_str and some correction to my program

[-insane-]

This would work too:

Code: Select all

	std::string test = "bla";
	c8* test2 = const_cast <c8*> (test.c_str());