rectangle shape problem

[EGYPTIAN CODER]

hello every one ;
for the past two days I was working on a very simple project
that allow me to draw and modify rectangle shapes
the program save the vector of rectangle shape very easily but when it comes to loading them
then odd exceptions thrown  when drawing them
so what is the problem here

                std::ifstream reader(file_name.c_str(),std::ios::binary|std::ios::ate);
               

                unsigned int bytes=reader.tellg();
               
                reader.close();
                reader.open(file_name.c_str(),std::ios::binary);

               
                for(unsigned int ds=0;ds<(bytes/sizeof(sf::RectangleShape));ds++)
                        rectangles.push_back(sf::RectangleShape(sf::Vector2f(1,1)));

                reader.read((reinterpret_cast<char*> (&rectangles[0])),bytes);

               
                reader.close();
 

 

[Laurent]

Serializing and deserializing data structures is a little more complicated than making raw copies of objects from memory to file and vice versa. They may contain pointers (addresses) that mean nothing once you quit the application or even destroy the objects. You must decompose what makes a sf::RectangleShape (a position, a size, a color, etc.), and explicitly read/write these values one by one using your own format, either binary or text.

I really suggest that you read some good documentation on serialization.

[EGYPTIAN CODER]

thanks