Windows System Programming Third Edition

ERRORS AND EXCEPTIONS

99

This example enables all possible floating-point exceptions except for the

floating-point stack overflow,

. Alternativ ely,

enable specific exceptions by using only selected exception masks, such as

. Program 4–3 uses similar code in the context of a larger example.

Errors and Exceptions

An error can be thought of as a situation that could occur occasionally in known

locations. System call errors, for example, should be detected and reported imme-

diately by logic in the code. Thus, programmers normally include an explicit test

to see, for i nstance, whether a file read operation ha

s fai led. The

function was developed in Ch