Stl Vectors and file handling

[ChrisWise]

Hi,

Im trying to write the vector product to a file but im havin no luck this has worked for other objects in the past.

Thanks

vector<product_structure> product;

	ofstream fout(filename,ios_base::binary);
	if (!fout.is_open()) {
		return false;
	}
	
	fout.write(reinterpret_cast<char*>(product),product.size * sizeof(product_structure));
	fout.close();

	

c:\Documents and Settings\Administrator\Desktop\iBurn\cMain.h(53): error C2440: 'reinterpret_cast' : cannot convert from 'std::vector<_Ty,_Ax>' to 'char *'
        with
        [
            _Ty=product_structure,
            _Ax=std::allocator<product_structure>
        ]

[CornedBee]

A vector is a class, not a simple array. You may not do this, as it makes assumptions (probably wrong ones) about the internal layout of the vector.