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ISO C99 Language features REFERENCE - ISO:C99-6.2.5 Types

Type 'long long' has been used and will be treated as a synonym for type 'long' unless the language extension option "-ex LONGLONG" is enabled (compiler personality).

'long long' is not supported in ISO:C90; it is a feature of ISO:C99.

Message 1027 will not be generated if the language extension option "-ex LONGLONG" is enabled.

For example: 


/*PRQA S 553,2017,3210,3408,3447 ++*/

extern long long          sll;                  /* Message 1027 */
extern unsigned long long ull;                  /* Message 1027 */

MISRA-C:2004 Rules applicable to message 1027:

Rule  1.1  (Required) All code shall conform to ISO/IEC 9899:1990 C programming language, ISO 9899, amended and corrected by ISO/IEC 9899/COR1:1995, ISO/IEC 9899/AMD1:1995, and ISO/IEC 9899/COR2: 1996192

See also:

QA·C Source Code Analyser 8.1
MISRA-C:2004 Compliance Module 3.2
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