成员引用基本类型不是结构或联合

Question

I need your help on one of my C++ project. I've got a semantic issue there :

Image bwImage(Image);
bwImage.setPixel(i,j,Color::Color( image.getPixel(i,j).r * RED + image.getPixel(i,j).g*GREEN + image.getPixel(i,j).b*BLUE,
image.getPixel(i,j).r*RED + image.getPixel(i,j).g*GREEN + image.getPixel(i,j).b*BLUE,
image.getPixel(i,j).r*RED + image.getPixel(i,j).g*GREEN + image.getPixel(i,j).b*BLUE) );

The error message is:

"Member reference base type sf::Image(sf::Image) is not a structure or union".

Does anyone know where is the problem ?

Thanks !

Answer 1

C++ is case sensitive. Image is the class name, while image is your object that instanciate the class.

From this Documentation , sf::Image has a copy constructor:

sf::Image::Image    (   const Image &   Copy    )   

You can build the bwImage , using that copy constructor, passing a reference to your image object.

So first line:

Image bwImage(Image);

Should be:

Image bwImage(image);