[previous] 0621 [next] [C] The struct/union '%s' cannot be initialized because it has unknown size.
Constraint violations REFERENCE - ISO:C90-6.5.7 Initialization - Constraints

This is a constraint error

This object cannot be initialized because it is a struct/union of incomplete type, i.e. its members and therefore its size have not been defined.

For example: 


/*PRQA S 553,679,2213,3207,3313 ++*/

static struct ST2 ast = {0};    /* Message 0621 (if ST2 is not defined) */

MISRA-C:2004 Rules applicable to message 0621:

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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