extern (C) function call with const char * type will sometimes generate seg fault or core dump.

[dysmondad via Digitalmars-d-learn]

Since I've added this call, my program will sometimes but not 
always either generate a core dump or a seg fault. It seems that 
the issue is with the const char * parameter.

I don't have a good grasp of the difference between the way D and 
C work for char * types. The call to loadTexture uses a literal 
for the file name, i.e. "resources/ball.png".

// d lang bindings for C function
alias void SDL_Renderer;
alias void SDL_Texture;
extern (C) SDL_Texture * IMG_LoadTexture(SDL_Renderer * renderer, 
const char * file);

// d lang call to extern (C) function
SDL_Texture* loadTexture( SDL_Renderer * ren,  const char * file )
{
        SDL_Texture * loadedImage = IMG_LoadTexture( ren, file );
        return loadedImage;
}