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| author | Daniele E. Domenichelli <daniele.domenichelli@iit.it> | 2015-02-06 15:53:44 (GMT) |
|---|---|---|
| committer | Daniele E. Domenichelli <daniele.domenichelli@iit.it> | 2015-02-26 16:42:30 (GMT) |
| commit | 4efef3f775e78bdcb4591dc37aa974bc28e8fd84 (patch) | |
| tree | c39e424c58b00ed0e7689c8412026a01410e8c7a /Help/command/function.rst | |
| parent | e3363bfbec592393780f9d769bd32334bcfd5953 (diff) | |
| download | CMake-4efef3f775e78bdcb4591dc37aa974bc28e8fd84.zip CMake-4efef3f775e78bdcb4591dc37aa974bc28e8fd84.tar.gz CMake-4efef3f775e78bdcb4591dc37aa974bc28e8fd84.tar.bz2 | |
Help: Clarify that ARGV# beyond ARGC will have an undefined behavior (#15380)
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. |