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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/CODING-GUIDELINES | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/CODING-GUIDELINES b/doc/CODING-GUIDELINES index aeca4a15b..53fd15da3 100644 --- a/doc/CODING-GUIDELINES +++ b/doc/CODING-GUIDELINES @@ -296,6 +296,15 @@ in other files. You will have to remove the "static" declaration and define a prototype in an appropriate header file (usually in include/asterisk). A more specific name should be given, such as "ast_find_call_feature". +* Variable function argument parsing +------------------------------------ + +Functions with a variable amount of argumenst need a 'sentinel' when called. +Newer GNU C compilers are fine if you use NULL for this. Older versions (pre 4) +don't like this. +You should use the constant SENTINEL. +This one is defined in include/asterisk/compiler.h + * Variable naming ----------------- |