Why?? (prog question)
bruce at cran.org.uk
Tue Mar 31 11:20:25 PDT 2009
On Tue, 31 Mar 2009 11:21:22 +0200
Polytropon <freebsd at edvax.de> wrote:
> 4. Use the predefined return codes, don't hardcode them.
> FreeBSD has EXiT_SUCCESS and EXIT_FAILURE, they're for
> maximum compatibility (such as with Linux). There are
> more exit codes for differentiation, but they're specific
> to FreeBSD, as far as I know.
Linux seems to have adopted sysexits.h too, which provides error codes
such as EX_USAGE and EX_CANTCREAT. However, in FreeBSD at least the most
common programming style is to use 1 for error and 0 for success - e.g.
errx(1, "number overflowed");
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