QA·C Help - 0678

	0678	[u] Array element is array of unknown size. Arrays cannot be constructed from incomplete types.

Implicitly undefined		REFERENCE - ISO:C90-6.1.2.5 Types

This type describes an array which is being constructed from elements of incomplete array type. This is not allowed.

For example:


/*PRQA S 553,2017,3132,3210,3447,3684 ++*/

extern int abuf[3][];        /* Message 0678 - element type is incomplete array            */
extern int bbuf[][3];        /* OK - Array type is incomplete but element type is complete */

MISRA C:2012 Rules applicable to message 0678:

Rule-1.3 (Required)

There shall be no occurrence of undefined or critical unspecified behaviour

See also:

0676 [u] Array element is of function type. Arrays cannot be constructed from function types.
0680 [u] Array element is 'void' or an incomplete 'struct' or 'union'. Arrays cannot be constructed from incomplete types.

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MISRA C:2012 Compliance Module 1.0
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