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Language extensions REFERENCE - ISO:C90-6.1.2 Identifiers

The $ character is not a member of the basic source character set and cannot be used in an identifier in ISO C. However the $ character is supported in VMS compilers.

QAC will permit the character to be used in an identifier if the language extension option "-ex dollar" is enabled.

For example: 


/*PRQA S 289,2017,3211,3408 ++*/
/**********************************
 * OPTIONS -ex dollar or -ex all
 *********************************/

int recover$;            /* Message 1002 */

MISRA C:2012 Rules applicable to message 1002:

Rule-1.2  (Advisory) Language extensions should not be used

QA·C Source Code Analyser 8.1
MISRA C:2012 Compliance Module 1.0
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