LANG.STRUCT.ELLIPSIS : Ellipsis

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A function definition uses ellipsis notation (...) (that is, the function is defined to be variadic).

Class Name

Ellipsis

Significance

style

Mnemonic

LANG.STRUCT.ELLIPSIS

Categories

Misra2004	Misra2004:16.1	Functions shall not be defined with variable numbers of arguments
AUTOSARC++14	AUTOSARC++14:A8-4-1	Functions shall not be defined using the ellipsis notation.
MisraC++2008	MisraC++2008:8-4-1	Functions shall not be defined using the ellipsis notation.
MisraC++2023	MisraC++2023:8.2.11	An argument passed via ellipsis shall have an appropriate type
CWE	CWE:1056	Invokable Control Element with Variadic Parameters
CERT-C	CERT-C:DCL11-C	Understand the type issues associated with variadic functions
CERT-CPP	CERT-CPP:DCL50-CPP	Do not define a C-style variadic function
JSF++	JSF++:108	Functions with variable numbers of arguments shall not be used.
JPL	JPL:25	Use short functions with a limited number of parameters.

Availability

Available for C and C++.

Enabling

Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += allow class="Ellipsis"

int lang_struct_ellipsis(int a, int b, ...){  /* 'Ellipsis' warning issued here */
   return  a;                                 /* varargs do not need to be used for warning to be issued. */
}

int fixed_arity(int a, int b){                                    /* ok: no ellipsis */
   return  a;
}

int decl_only(int a, int b, ...);                                 /* ok: not a function definition */

The following configuration file parameters affect checks for this warning class.

LANG.STRUCT.ELLIPSIS : Ellipsis

Summary

Properties

Example

Relevant Configuration File Parameters