0032903: Coding Rules - eliminate MSVC warning C26451 on VS2019/C++20

0032903: Coding Rules - eliminate MSVC warning C26451 on VS2019/C++20

Put explicit type casting to avoid:
Warning C26451 Arithmetic overflow: Using operator '-' on a 4 byte
value and then casting the result to a 8 byte value.
Cast the value to the wider type before calling operator '-' to avoid overflow (io.2).