QA·C Help - 3007

	3007	"void" has been omitted when defining a function with no parameters.

Functions		REFERENCE - ISO:C90-6.5.4.3 Function Declarators (Including Prototypes) - Semantics, ISO:C90-6.7.1 Function Definitions - Constraints

A function is being defined with an empty parameter-list.

Functions can be defined with no parameters using either an empty parameter-list or a list consisting of the single keyword "void". There is no semantic difference and the choice is a matter of style. However, when declaring a function with no parameters, the use of "void" is important.

Message 3007 is generated for a function definition which has an empty parameter-list
Message 3001 is generated for a function declaration which has an empty parameter-list

For example:


/*PRQA S 1303,2017,3408 ++*/

extern int f1()
{                                       /* Message 3007 */
    return 1;
}

extern int f2(void)
{
    return 1;
}

MISRA C:2012 Rules applicable to message 3007:

Rule-8.2 (Required)

Function types shall be in prototype form with named parameters

See also:

3001 Function has been declared with an empty parameter list.

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MISRA C:2012 Compliance Module 1.0
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