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operator +=


law

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I'm attempting with no success to use operator += in expression $V{totNom}+= $F{NOMGEQ}.

The error is "The left-hand side of an assignment must be a variable"

pointing to $V{totNom}

 

totNom is a variable. Could anyone please tell me how to get this operator to function? ... I'm computing here a sum of the field NOMGEQ.

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