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New entry re clamping to EXIT_FAILURE.

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Thien-Thi Nguyen 2004-05-12 14:39:34 +00:00
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admin/notes/exit-value
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@ -21,3 +21,15 @@ value requirements outlined in the first paragraph! That is the job of the
#endif
Values aside from EXIT_SUCCESS and EXIT_FAILURE are tricky.
ttn 2004-05-12
Values aside from EXIT_SUCCESS and EXIT_FAILURE can be used to indicate
finer gradations of failure. If this is the only information available
to the caller, clamping such values to EXIT_FAILURE loses information.
If there are other ways to indicate the problem to the caller (such as
a message to stderr) it may be ok to clamp. In all cases, it is the
relationship between the program and its caller that must be examined.
[Insert ZAMM quote here.]