how is size of unsigned int defined?

[n]

An unsigned int is the same size as an int.  I use unsigned as type
prefix, where it modifies the context that the unit of storage (char,
int, long) is viewed.  This is consistent with the K & R definition
of unsigned as a type specifier (pp. 193).

Bill Mclean allegra!utzoo!isis		@ MOH 964-1983 or 965-0981