Passing a string to a constructor?

Okay so I'm currently starting to work in SFML and I'm looking at making my first engine after studying a few other game engines I've seen. So basically right now I have a "gamestate" class then another class for levels. I'm trying to pass a string to the other class so I can change what the window title says to get an idea of how things work.. so I will show you an example.

Code:

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#include <string>
#include <iostream>
Class A
{
    public:
        void function(std::string);
};
void A::function(std::string Name)
{
    std::cout<< Name;
}

int main()
{
    A a;
    a.function("string to window");
}

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I'm getting the following errors:

Code:

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/home/cody/Documents/GameEngine/src/GameState.cpp||In member function ‘void GameState::Run()’:|
/home/cody/Documents/GameEngine/src/GameState.cpp|18|error: no matching function for call to ‘Engine::Run(const char [7])’|
/home/cody/Documents/GameEngine/include/Engine.h|20|note: candidates are: void Engine::Run()|
||=== Build finished: 1 errors, 0 warnings ===|

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I see that its trying to pass it is trying to pass it as a character array which obviously wont work, but how do i go about it.. do i need to typecast or something??

thanks guys,

Also.. not the appropriate forum but with things like image loading is it necessary to have a class?? I feel simply using functions would be easier. Thanks

then overload the constructor with one that take in character array.

Your example code does not demonstrate the error. (It has a different error due to Class versus class, but after fixing that it compiles perfectly fine.)

Quote:

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Originally Posted by laserlight

Your example code does not demonstrate the error. (It has a different error due to Class versus class, but after fixing that it compiles perfectly fine.)

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Sorry for basically wasting your time laserlight. I forgot to put std::string in my prototype for the class. My mistake. I didn't event think to check it. Everything is up and working fine now though. Thanks for offering your time.

When your car wont start, would you just send a drawing of your car engine to a mechanic?

I.e. if you want the real problem fixed, show the real code.

Quote:

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Originally Posted by laserlight

Your example code does not demonstrate the error. (It has a different error due to Class versus class, but after fixing that it compiles perfectly fine.)

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Sorry for basically wasting your time laserlight. I forgot to put std::string in my prototype for the class. My mistake. I didn't event think to check it. Everything is up and working fine now though. Thanks for offering your time.

If you're passing an object to a function and it's not going to be changed, then make it const. Even better, avoid the copy and make it a const reference.

Code:

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void A::function(const std::string &Name)
{
    std::cout<< Name;
}

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