QA·C Help - 4606

	4606	The typedef '%1s' has the same name as another ordinary identifier in '<%2s>'.

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

This typedef name is a reserved identifier. It is the same as another ordinary identifier (not a typedef), declared in the specified library header file.

This is most unwise; if the library header file is ever included in this code, there will certainly be a conflict.

For example:


/*PRQA S 553,2017,3205,3602,3625 ++*/

typedef signed char acos;      /* Message 4606 - "acos" is the name of a function declared in <math.h> */

typedef int stdin;             /* Message 4606 - "stdin" is the name of an object declared in <stdio.h> */

MISRA-C:2004 Rules applicable to message 4606:

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>'.
4604 The object/function '%1s' is being declared with the same name as an ordinary identifier defined in '<%2s>'.
4605 The typedef '%1s' is also defined 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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