precedence

[′pres·əd·əns]

(computer science)

The order in which operators are processed in a programming language.

precedence

operator precedence

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

precedence

The order in which an expression is processed. Mathematical precedence is normally:

1.  unary + and - signs2.  exponentiation3.  multiplication and division4.  addition and subtraction

In order to properly compute the formula that converts Fahrenheit to Celsius, which is fahrenheit-32*5/9, the expression

(fahrenheit-32)*5/9

must be used with parentheses separating the fahrenheit-32 from the multiplication. Since multiplication is evaluated before subtraction, 32 would be multiplied by 5 first, which is not what is wanted.

Logical precedence is normally:

1.  NOT2.  AND3.  OR

In the dBASE query:

list for item = "TIE" .and. color = "GRAY" .or. color = "RED"

all gray ties and anything red will be selected, since ANDs are evaluated before ORs. Grouping the colors in parentheses as in the example below yields only gray and red ties.

(color="GRAY" .or. color="RED")

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References in periodicals archive

Your objection to age precedence is that it interferes with your illusion that you are passing for younger than you are.

Offended by precedence for the aging

To support his opinion, the AG has said there is no precedence where a party was given the LoP position -- the status of a Cabinet minister -- without meeting the criteria of 10 per cent seats since the days of first Lok Sabha when G.

AG says Congress doesn't have a case for LoP post

The Federal National Council (FNC) decried in a statement today the planned trip to UAE three islands - Abu Musa and the Greater and Lesser Tunbs - as a provocative step, dangerous precedence, and it violates the UAE sovereignty and contradicts all efforts aimed at finding a peaceful settlement to end the Iranian occupation of the UAE islands.

UAE condemns visit by Iran's Shura Council members to its occupied islands as 'provocative and dangerous precedence'

Those buying property should be aware that a contract of sale will only be granted precedence over a pre-existing mortgage if the mortgage lender is paid the amount of the mortgaged debt attributable to the property they are purchasing.

Warning over 'contract of sale'

The lack of official clarification of warrant officer precedence in Army regulations sets a stage for inconsistent treatment of warrant officers from one installation to the next.

Charging toward an even brighter future

Critics said the switch would enable Coun Whitby to take precedence over the Lord Mayor at almost any event, although the claim was hotly denied by the council leader.

PEACE PLAN IN LEADER v MAYOR ROW

OKI Printing Solutions and its UAE distributor Utmost Electronics have signed an agreement to make Precedence Infotech the preferred partner for OKI XF products targeting the UAECOs thriving high end graphics market.

OKI picks Precedence Infotech as partner

In recent years, a question that has plagued both contracting officials and small businesses is how to interpret the Federal Acquisition Regulation with regard to determining the order of precedence for contract awards to small businesses, HUBZone small businesses, service-disabled veteran-owned small businesses (SDVOSB) and small businesses participating in the 8(a) Business Development Program.

Legal issues: parity for 8(a), SDV, HUBZone firms

Order relations between phases reflect technologically, real development of the process and are called relation of precedence. Mathematically, they form an acyclic digraph (James, 2000).

Approaching of balancing problem through simulation