QA·C Help - 0344

	0344	Using function prototype syntax.

K+R compatibility		REFERENCE - ISO:C90-6.5.4.3 Function Declarators (Including Prototypes)

Function prototype syntax is being used. Function prototypes were not supported in early versions of the C language.

Be aware that message 0344 is only generated when the "-k+r p" option is enabled. Notice also that when this option is enabled, messages which identify old style function syntax are no longer generated (i.e. messages 1303, 3001, 1304 and 3002).

For example:


/*PRQA S 553,2017,2115,3206,3408,3447 ++*/
/*****************************
 * OPTIONS: -k+r p
 ****************************/

extern int f1(short a, long b);                   /* Message 0344 */
extern int f2();                                  /*              */

extern int f1(short a, long b)                    /* Message 0344 */
{
    return 1;
}

extern int f2(a, b)
short a;
long  b;
{
    return 1;
}

See also:

1303 An empty parameter list in a function type has a different meaning in C++.
1304 Old style definition of function '%s()' is not portable to C++.
3001 Function has been declared with an empty parameter list.
3002 Defining '%s()' with an identifier list and separate parameter declarations is an obsolescent feature.

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