What's the maximum process ID?

Question

I'm trying to migrate a set of unix codes to windows platform.

It is said PID ranges from 0 to 0x7fff in unix and PID was stored in an int32 datatype variable.

However, i find a definition "int  _getpid(void);"in process.h.

Do i need to expand PID from int32 to int64? What would happen if i continue using int32 datatype?

Answer 1

sorry.

I made a mistake that I thought int refered to int64 in 64-bit system.

The question above is closed.