question on structures

[@EE@]

hi,
can i use int8_t, int16_t, int32_t, int64_t, and uint8_t, uint16_t, uint32_t, uint64_t,to make sure the widths do not change from different versions of visual studio?. Like one version might handle unsigned int as 4 bytes and another version might handle it as 8 bytes.

[@EE@]

any input?.

[VictorN]

As for today we have the following info:
https://en.cppreference.com/w/cpp/types/integer
https://docs.microsoft.com/en-us/cpp...?view=msvc-170

[2kaud]

can i use int8_t, int16_t, int32_t, int64_t, and uint8_t, uint16_t, uint32_t, uint64_t,to make sure the widths do not change from different versions of visual studio?

Basically, yes. Note though that int8_t is usually treated as a type char (eg for std::cout). Also note that .size() and std::size() return type is size_t whose width does change depending upon whether compiling for 32 or 64 bit.

Although it is unlikely that widths would change between versions of VS. Note though, that various MS specific types (defined in windows.h) that relate to pointers do change size depending upon whether compiling for 32 or 64 bit. In existing 32 bit code if any 32 bit variable is used to hold a memory address (typically DWORD) then this code will not be correct if compiled for 64 bit. Windows data types also include specific widths. See
https://docs.microsoft.com/en-us/win...ows-data-types