LANG.STRUCT.MISRS : Misplaced Return Statement

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CodeSonar^® 9.2p0

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C and C++

LANG.STRUCT.MISRS : Misplaced Return Statement

Summary

A function's return statement is not at the end of the function.

Properties

Class Name

Misplaced Return Statement

Significance

style

Mnemonic

LANG.STRUCT.MISRS

Categories

MisraC2025	MisraC2025:15.5	A function should have a single point of exit at the end
MisraC2023	MisraC2023:15.5	A function should have a single point of exit at the end
Misra2012	Misra2012:15.5	A function should have a single point of exit at the end
Misra2004	Misra2004:14.7	A function shall have a single point of exit at the end of the function
MisraC++2008	MisraC++2008:6-6-5	A function shall have a single point of exit at the end of the function.

Availability

Available for C and C++.

Enabling

Checks for this warning class are disabled by default, and require the unnormalized C ASTs for the project. To enable them, add the following WARNING_FILTER rule and RETAIN_UNNORMALIZED_C_AST specification to the project configuration file.

RETAIN_UNNORMALIZED_C_AST = Yes
WARNING_FILTER += allow class="Misplaced Return Statement"

Note that retaining the unnormalized ASTs will increase the disk space used to store the project representation, and may make the analysis take longer.

Example

int lang_struct_misrs(int i){ /* 'Misplaced Return Statement' warning issued here. */
    int x=0;
    while (1){
        if (x >= i) return x;
        x++;
    }
}

Relevant Configuration File Parameters

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

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