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A comment on Critical crypto bug leaves Linux, hundreds of apps open to eavesdropping. Parent comment

Re: Critical crypto bug leaves Linux, hundreds of apps open ... by userbinator on Tuesday March 04, 2014 @07:18PM (#7344285)
Those are functions that return more possible success values than failure values. The three common conventions seem to be:

Nonzero: error code, zero: success

Nonzero: one of many possible success values, zero: error (e.g. malloc())

Negative: error code, positive: one of many possible success values

And each has its tradeoffs.

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