QA·C Help - 0514

	0514	[C] Relational operator used to compare a pointer with an incompatible operand.

Constraint violations		REFERENCE - ISO:C90-6.3.8 Relational Operators - Constraints

This is a constraint error

A relational operator is being used to compare an operand which points to an object or incomplete type with an operand which is not a pointer to object or incomplete type. A relational operator can only be used when:

Both operands are of arithmetic type, or
Both operands are pointers to qualified or unqualified versions of compatible object types, or
Both operands are pointers to qualified or unqualified versions of compatible incomplete types

For example:


/*PRQA S 490,3120,3227,3408,3602,3625 ++*/

int  *pi;

void foo(unsigned long un)
{
    if (pi < un)            /* Message 0514 */
    {
    }

    if (pi >= 0x8F00U)      /* Message 0514 */
    {
    }
}

See also:

0513 [C] Relational operator used to compare pointers to incompatible types.
0515 [C] Equality operator used to compare a pointer with an incompatible operand.

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