SDL tutorial in C

[swappo1]

Hello,

I am working through the lazy foo sdl tutorial number 2. I know C but I am not familiar with C++ which is what the tutorials are written in. I am having trouble converting the following function to C. I am assuming that std::string filename takes a string(the file name) into the function and puts the string in SDL_LoadBMP(filename.c_str() ). Is there a simple way to re-write this function in C? I will have multiple files so I would like to use a function. I can do it with out a function but it would have redundant code.

SDL_Surface *load_image( std::string filename )

{

//Temporary storage for the image that's loaded

SDL_Surface* loadedImage = NULL;



//The optimized image that will be used

SDL_Surface* optimizedImage = NULL;



//Load the image

loadedImage = SDL_LoadBMP( filename.c_str() );



//If nothing went wrong in loading the image

if( loadedImage != NULL )

{

//Create an optimized image

optimizedImage = SDL_DisplayFormat( loadedImage );



//Free the old image

SDL_FreeSurface( loadedImage );

}



//Return the optimized image

return optimizedImage;

[kjohansen]

since the function SDL_LoadBMP accepts a C string you can just write a function that accepts a character pointer and pass that to the SDL_LoadBMP function.



SDL_Surface* function(char* filename)
{
//The optimized image that will be used

SDL_Surface* optimizedImage = NULL;
SDL_Surface* loadedImage = NULL;
//Load the image
loadedImage = SDL_LoadBMP( filename);
return loadedImage;
}

[swappo1]

Once I declared loadedImage in the function it worked. Thanks