[previous] 0624 [next] Function '%s' is declared using typedefs which are different to those in a previous declaration.
Declarations and Definitions REFERENCE - ISO:C90-6.1.2.6 Compatible Type and Composite Type

This function has been declared in a slightly different way in an earlier declaration. The declarations are "type compatible" but not "typedef" compatible.

This is not recommended practice although it is permitted in the C standard.

For example: 


/*PRQA S 2017,2213,3210,3211,3447,3448,3603 ++*/

typedef int INT;
typedef int XXX;

extern int foo1(void);
extern INT foo1(void) { return 1; }     /* Message 0624 */

extern int foo2(void);
extern INT foo2(void);                  /* Message 0624 */

extern INT foo3(void);
extern XXX foo3(void);                  /* Message 0624 */

extern void foo4(int x);
extern void foo4(XXX x);                /* Message 0624 */

MISRA C:2012 Rules applicable to message 0624:

Rule-8.3  (Required) All declarations of an object or function shall use the same names and type qualifiers

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