Miscellaneous-NoEllipsis

Do not use variable arguments in functions

Required inputs: IR

This rule prevents the definition of C-style variadic functions. The use of strongly-typed means of parameter passing is preferable. In C++11, consider the use of parameter packs.

Calls to existing functions with variable arguments (such as printf) are allowed by this rule.

Rationale

Variable arguments are difficult to use correctly: if the number and types of the arguments passed by the caller does not match those expected by the callee, undefined behavior will occur.

Possible Messages

Key	Text	Severity	Disabled
ellipsis_parameter	Function must not have variable number of arguments.	None	False

Options

• This rule shares the following common options: exclude_in_macros, exclude_messages_in_system_headers, excludes, extend_exclude_to_macro_invocations, includes, justification_checker, languages, post_processing, provider, report_at, severity

• The following places define options that affect this rule: Stylechecks, Analysis-GlobalOptions

ignore_declarations

ignore_declarations : bool = True

Allow declarations of functions with variable number of arguments (e.g. for existing library functions); only report definitions.

 

ignore_inherited

ignore_inherited : bool = False

Do not report functions inheriting a variable number of arguments.