Changes in the variable type of C/C ++ transplanted to 64-bit on Windows

Compile 64-bit program variable types on Windows:

Type: 32-bit compiled size: 64-bit compiled size
Char 1 1
Short 2 2
Int 4 4
Long 4 4
Pointer 4 8
Size_t 4 8
Some other types defined in Windows also change to 8 bytes, including wparam, lparam, and lresult.
It can be seen that there are not many types of changes. If the 64-bit switch is used for re-compilation, the changes made in Porting are relatively small.

On Unix/Linux platforms and Windows platforms,On UNIX platforms, the long type is also changed to 8 bytes..

If the 64-bit compilation switch is not used to re-compile the program, the program will remain the size of the original 32-bit, so there will be no porting changes.