ISO TR 15580 IEEE Arithmetic

The aims of this chapter are to look in more depth at arithmetic and in particular at the support that Fortran provides for the IEEE 754 standard. There is a coverage of: Hardware support for arithmetic. Integer formats. Floating point formats: single and double. Special values: denormal, infinity and not a number – NAN. Exceptions and flags: divide by zero, inexact, invalid, overflow, under flow.