erlware/joxa — pull request #53 by KlausTrainer (2013-04-24 19:50:53+00:00)
Title: Improve macros and functions in joxa-core

* and/1, or/1:
Don't fail with 'invalid-fn-form'-error when being called with one
argument.

* or/1:
Fix bug where a wrong result would be returned due to a spurious
call of joxa-core/and/1 instead of joxa-core/or/1.

* +/1:
Return zero rather than an empty list when being called without
arguments.

* -/1:
Return zero rather than crash with a case clause error when being
called without arguments.