Operators

Abstract

In preceding chapters we have used identifiers with type char, int, and float. Data types char and int must be available in any C implementation. When the size of a C language processor has to be reduced, it will be the data type float that will be sacrificed. RatC does not support the type float. On larger machines offering a ‘full’ implementation of C we might also expect to have access to the types double length floating point (abbreviated to double), double length integer (abbreviated to long) and perhaps short integers (short). We suggest that you look at the implementation notes for C on your system to discover what is on offer. This information is needed only when it is necessary to mix types in an expression, for then we need to know the type of the result.