Question

I find that there is no native bool type. People either use int or char – though it seem that int might be more frequently used than char? Is this true?

My first impulse was to use char as it is a smaller data type, but there something I’ve missed? Is int better for boolean values, and if so – why?

Answer 1

There is a _Bool in C99, and a bool if you include stdbool.h.

If you don’t have it (a decently modern compiler), use int, it’s usually the fastest type. The memory savings of using char are likely negligible.