LANG.STRUCT.UUPARAM : Unused Parameter

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LANG.STRUCT.UUPARAM : Unused Parameter

Summary

Properties

MisraC2025

MisraC2025:2.7

A function should not contain unused parameters

MisraC2023

MisraC2023:2.7

A function should not contain unused parameters

Misra2012

Misra2012:2.7

A function should not contain unused parameters

AUTOSARC++14

AUTOSARC++14:M0-1-2

A project shall not contain infeasible paths.

AUTOSARC++14:A0-1-4

There shall be no unused named parameters in non-virtual functions.

AUTOSARC++14:A0-1-5

There shall be no unused named parameters in the set of parameters for a virtual function and all the functions that override it.

MisraC++2008

MisraC++2008:0-1-2

A project shall not contain infeasible paths.

MisraC++2008:0-1-11

There shall be no unused parameters (named or unnamed) in non-virtual functions.

MisraC++2008:0-1-12

There shall be no unused parameters (named or unnamed) in the set of parameters for a virtual function and all the functions that override it.

MisraC++2023

MisraC++2023:0.2.2

Any named function parameter shall be used at least once

Dead Code

Detect and remove code that has no effect or is never executed

DISA-3r10

DISA-3r10:V-6149

The designer will ensure the application does not contain source code that is never invoked during operation, except for software components and libraries from approved third-party products.

Example

int lang_struct_uuparam(
        int param1,                            /* used in body */
        int param2,                            /* used in body (though use is unreachable) */
        int param3)   /* 'Unused Parameter' warning issued here */
{
    int loc1 = param1;
    if (0) {
      loc1 += param2;              /* ('Unreachable Computation' warning issued here) */
    }
    return loc1;
}

Relevant Configuration File Parameters

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