In this post I've collected a lot of links on the topic of 64-bit C/C++ software development. These include my articles and articles by my colleagues in the sphere of developing safe and efficient 64-bit code; FAQ's and a training course. There are also many reviews of third-party articles on 64-bit software development. Enjoy yourself studying the materials.
In forums, people often say that 64-bit versions of programs consume a larger amount of memory and stack. Saying so, they usually argue that the sizes of data have become twice larger. But this statement is unfounded since the size of most types (char, short, int, float) in the C/C++ language remains the same on 64-bit systems. Of course, for instance, the size of a pointer has increased but far not all the data in a program consist of pointers.