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Diffstat (limited to 'Help/command/function.rst')
| -rw-r--r-- | Help/command/function.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Help/command/function.rst b/Help/command/function.rst index 5bbffbf..7ffdfee 100644 --- a/Help/command/function.rst +++ b/Help/command/function.rst @@ -24,6 +24,10 @@ This facilitates creating functions with optional arguments. Additionally ``ARGV`` holds the list of all arguments given to the function and ``ARGN`` holds the list of arguments past the last expected argument. +Referencing to ``ARGV#`` arguments beyond ``ARGC`` have undefined +behavior. Checking that ``ARGC`` is greater than ``#`` is the only way +to ensure that ``ARGV#`` was passed to the function as an extra +argument. A function opens a new scope: see :command:`set(var PARENT_SCOPE)` for details. |