LANG.STRUCT.DECL.RESERVED : Declaration of Reserved Name

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CodeSonar^® 9.2p0

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C and C++

LANG.STRUCT.DECL.RESERVED : Declaration of Reserved Name

Summary

An identifier in a declaration:

starts with an underscore, or
matches the name of a macro defined in a standard C header, or
matches a file-scope identifier declared in a standard C header.

Properties

Class Name

Declaration of Reserved Name

Significance

style

Mnemonic

LANG.STRUCT.DECL.RESERVED

Categories

MisraC2025	MisraC2025:5.10	A reserved identifier or reserved macro name shall not be declared
MisraC2023	MisraC2023:21.2	A reserved identifier or reserved macro name shall not be declared
Misra2012	Misra2012:21.2	A reserved identifier or reserved macro name shall not be declared
Misra2004	Misra2004:20.2	The names of standard library macros, objects and functions shall not be reused
AUTOSARC++14	AUTOSARC++14:M17-0-2	The names of standard library macros and objects shall not be reused.
	AUTOSARC++14:M17-0-3	The names of standard library functions shall not be overridden.
MisraC++2008	MisraC++2008:17-0-2	The names of standard library macros and objects shall not be reused.
	MisraC++2008:17-0-3	The names of standard library functions shall not be overridden.
CWE	CWE:1076	Insufficient Adherence to Expected Conventions
CERT-C	CERT-C:DCL37-C	Do not declare or define a reserved identifier
CERT-CPP	CERT-CPP:DCL51-CPP	Do not declare or define a reserved identifier

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="Declaration of Reserved Name"

Example

int NULL;                         /* 'Declaration of Reserved Name' warning issued here */

void _fname( void ){              /* 'Declaration of Reserved Name' warning issued here */
    int _y = 0;                   /* 'Declaration of Reserved Name' warning issued here */
    char *printf = "hello world"; /* 'Declaration of Reserved Name' warning issued here */

  /* ... */
}

Relevant Configuration File Parameters

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

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