It depends upon the architecture and compiler. One C compiler for the MC68000 might have int as 16 bits (since externally, the MC68000 had a 16-bit external bu

It depends upon the architecture and compiler. One C compiler for the MC68000 might have int as 16 bits (since externally, the MC68000 had a 16-bit external bus) but another one have ints as 32 bits (since the MC68000 can handle 32-bits internally). This was more of an issue during the 80s and 90s when you had more commercial C compiler available than today.