xHarbour Reference Documentation > Operator Reference

.NOT.

Logical NOT operator (unary).

Syntax

! <lCondition>
.NOT. <lCondition>

Arguments

<lCondition>

<lCondition> is a logical expression to logically negate.

Description

The .NOT. operator (alternatively "!" as an abbreviation) is a unary logical operator that negates the value of its operand. This yields the logical inverse of <lCondition>.

Info

See also:	.AND., .OR.
Category:	Logical operators , Operators
LIB:	xhb.lib
DLL:	xhbdll.dll

Example

// The example shows the logical inverse of the operands:

   PROCEDURE Main
      ? .NOT. (.T.)                    // result: .F.
      ? .NOT. (.F.)                    // result: .T.

      ? ! 1 > 2                        // result: .T.
  RETURN