QA·C Help - 0602

	0602	[U] The identifier '%s' is reserved for use by the library.

Explicitly undefined		REFERENCE - ISO:C90-7.1.3 Reserved Identifiers

This is a reserved identifier. It is unwise to define an identifier with a reserved name because the name may conflict with an identifier in an existing or future version of the system library.

Message 0602 is generated when an identifier is defined as follows:

a) It begins with 2 underscores
b) It begins with 1 underscore followed by an uppercase letter
c) It begins with 1 underscore and is an ordinary identifier or tag defined at file scope

For example:


/*PRQA S 2017,3211,3408 ++*/

int __globa = 0;                /* Message 0602 */
int _Globb  = 1;                /* Message 0602 */

MISRA C:2012 Rules applicable to message 0602:

Rule-1.3 (Required)	There shall be no occurrence of undefined or critical unspecified behaviour
Rule-21.2 (Required)	A reserved identifier or macro name shall not be declared

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