QA·C Help - 4604

	4604	The object/function '%1s' is being declared with the same name as an ordinary identifier defined in '<%2s>'.

Identifiers		REFERENCE - ISO:C90-7.1.2.1 Reserved Identifiers, ISO:C99-7.1.3 Reserved Identifiers

This is a reserved identifier. It is the same as another ordinary identifier declared in the specified library header file.

This is dangerous if the declarations are not consistent. Even if they are, it may still be wiser to declare the identifier using the relevant library header file.

For example:


/*PRQA S 553,2017,3210,3447,3625 ++*/

extern void printf(char *buf);     /* Message 4604 - "printf" is declared as a function in <stdio.h>  */

extern int asin;                   /* Message 4604 - "asin"   is declared as a function in <math.h>   */

extern int div_t(void);            /* Message 4604 - "div_t"  is declared as a typedef  in <stdlib.h> */

MISRA-C:2004 Rules applicable to message 4604:

Rule 20.2 (Required)

The names of standard library macros, objects and functions shall not be reused.

See also:

4600 The macro '%1s' is also defined in '<%2s>'.
4601 The macro '%1s' is the name of an identifier in '<%2s>'.
4602 The identifier '%1s' is declared as a macro in '<%2s>'.
4603 The object/function '%1s'is being defined with the same name as an ordinary identifier defined in '<%2s>'.
4605 The typedef '%1s' is also defined in '<%2s>'.
4606 The typedef '%1s' has the same name as another ordinary identifier in '<%2s>'.
4607 The enum constant '%1s' has the same name as another ordinary identifier in '<%2s>'.
4608 The tag '%1s' is also defined in '<%2s>'.

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MISRA-C:2004 Compliance Module 3.2
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