word-size

Already read through this related question , but was looking for something a little more specific. Is there a way to tell your compiler specifically how wide you want your enum to be? If so, how do you do it? I know how to specify it in C#; is it similarly done in C? Would it even be worth doing? When the enum value is passed to a function, will it be passed as an int -sized value regardless? Is there a way to tell your compiler specifically how wide you want your enum to be? In general case no. Not in standard C. Would it even be worth doing? It depends on the context. If you are talking

What are the sizes of tword , oword and yword operands, as used in the NASM / YASM manual ? And on a related note, is there a trick or underlying idea to these names? Is there a way by which bigger word sizes are given logical names? I know that while word sizes may differ between systems, a NASM word is 2 bytes, dword is double that (4 bytes), qword is a quad word (8 bytes), but... is tword a triple word (6 bytes)? And for oword and yword I can't even think of a plausible meaning. Note that it is probably an easy question, but I couldn't find an answer. In the NASM and YASM manuals these

How do I determine the word size of my CPU? If I understand correct an int should be one word right? I'm not sure if I am correct. So should just printing sizeof(int) would be enough to determine the word size of my processor? Your assumption about sizeof(int) is untrue; see this . Since you must know the processor, OS and compiler at compilation time, the word size can be inferred using predefined architecture/OS/compiler macros provided by the compiler. However while on simpler and most RISC processors, word size, bus width, register size and memory organisation are often consistently one