MISRA C:2012  Rule-8.4:  (Required)			A compatible declaration shall be visible when an object or function with external linkage is defined

Amplification:

A compatible declaration is one which declares a compatible type for the object or function being defined.

Example Code:

#pragma PRQA_MESSAGES_OFF 2017

#include "misra.h"
#include "m3cmex.h"

int16_t obj0804 = 1;                    /* 3408 */

extern int16_t rule_0804(void)
{
    return 1;
}

QAC messages that encompass this guideline:

3408	'%s' has external linkage and is being defined without any previous declaration.

(c) The Motor Industry Research Association, 2012

QA C Source Code Analyser 8.1.2 MISRA C:2012 Compliance Module 1.0 © 2013 Programming Research www.programmingresearch.com

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