; Constant folding and propagation: replacing expressions consisting of constants ( e. g., ) with their final value () at compile time, rather than doing the calculation in run-time.

Constant folding and constant propagation are related compiler optimizations used by many modern compilers.

Constant folding is the process of simplifying constant expressions at compile time.

Constant folding can be done in a compiler's front end on the IR tree that represents the high-level source language, before it is translated into three-address code, or in the back end, as an adjunct to constant propagation.

# REDIRECT Constant folding

Constant propagation is the process of substituting the values of known constants in expressions at compile time.

Constant propagation is implemented in compilers using reaching definition analysis results.

Constant propagation can also cause conditional branches to simplify to one or more unconditional statements, when the conditional expression can be evaluated to true or false at compile time to determine the only possible outcome.

It had been pointed out previously by J. J. Thomson in his series of lectures at Yale University in May 1903 that the dynamic equilibrium between the velocity generated by a concentration gradient given by Fick's law and the velocity due to the variation of the partial pressure caused when ions are set in motion " gives us a method of determining Avogadro's Constant which is independent of any hypothesis as to the shape or size of molecules, or of the way in which they act upon each other ".

* Constant populations: Some Occitan-speaking peoples are descended from people living in the region since prehistory ( Bec, 1963 ).

Constant false alarm rate and digital terrain model processing are also used in clutter environments.

Recent English-language spy films are The Bourne Identity ( 2002 ), Mission: Impossible ( 1996 ); Munich ( 2005 ), Syriana ( 2005 ), The Constant Gardener ( 2005 ) and Casino Royale ( 2006 ), a relaunching of the James Bond series.

Constant binary 1 and 0 levels are shown, as well as transitions from 0 to 1, 1 to 0, 0 to 1 to 0, and 1 to 0 to 1.

Constant current power supplies are most often used for manual welding processes such as gas tungsten arc welding and shielded metal arc welding, because they maintain a relatively constant current even as the voltage varies.

Constant voltage power supplies hold the voltage constant and vary the current, and as a result, are most often used for automated welding processes such as gas metal arc welding, flux cored arc welding, and submerged arc welding.

Inside the church are the tombs of Luther and Philipp Melanchthon, and of the electors Frederick the Wise ( by Peter Vischer the Younger, 1527 ) and John the Constant ( by Hans Vischer ), and portraits of the reformers by Lucas Cranach the Younger.

Nairn's claims are confirmed in part by revelations of Emmanuel Constant regarding the ties of his FRAPH organization to the CIA before and during the coup government.

Constant real value non-monetary items are non-monetary items with constant real values over time whose values within an entity are not generally determined in a market on a daily basis.

All constant real value non-monetary items are always and everywhere measured in units of constant purchasing power at all levels of inflation and deflation under CIPPA in terms of a Daily CPI or daily rate under the Capital Maintenance in Units of Constant Purchasing Power paradigm.

Historic and current period monetary items are required to be inflation-adjusted on a daily basis in terms of a daily index or rate under the Capital Maintenance in Units of Constant Purchasing Power paradigm.

Current period variable real value non-monetary items are required to be measured on a daily basis in terms of IFRS excluding the stable measuring unit assumption and the cost model in the valuation of property, plant, equipment and investment property after recognition under the Capital Maintenance in Units of Constant Purchasing Power paradigm.

: Revenues and expenses are measured in nominal monetary units under the Historical Cost Accounting model and in units of constant purchasing power ( inflation-adjusted ) under the Units of Constant Purchasing Power model.

Under the Units of Constant Purchasing Power model, all constant real value non-monetary items are inflation-adjusted during low inflation and deflation ; i. e. all items in the Statement of Comprehensive Income, all items in shareholders ´ equity, Accounts Receivables, Accounts Payables, all non-monetary payables, all non-monetary receivables, provisions, etc.

The following are listed on the National Register of Historic Places: Constant Riley W. Bixby House, Amzi Bradley Farmstead, District # 10 Schoolhouse, Harrington Cobblestone Farmhouse and Barn Complex, and Philo Newton Cobblestone House.

* Constant weight fluctuations are common

Two previously unreleased songs, " Situations " and " Constant Static ," are also featured on the album.

Constant rain and other weather influences are slowly dissolving the entire range.

Constant and repeated movement creates a risk of repetitive stress injury ; pain must often be worked through to hold a job in a market with constant turnover ; and the days are filled with degrading and uninteresting tasks ( e. g. toilet-cleaning and mopping ).

The only named Vogons in the stories are Jeltz ( see below ), Kwaltz ( who appears in the film ), Zarniwoop, revealed to be a Vogon in the Quintessential Phase, and Jeltz's son Constant Mown.

The polo-cities are: Benjamin Constant, Tefé, Lábrea, Eirunepe, Manicoré, Barcelos, Manacapuru, Itacoatiara and Parintins.

Constant fast aperture zooms ( usually 2. 8 or 2. 0 ) are typically restricted to this zoom range.

The other nine units in ENIAC were the Initiating Unit ( which started and stopped the machine ), the Cycling Unit ( used for synchronizing the other units ), the Master Programmer ( which controlled " loop " sequencing ), the Reader ( which controlled an IBM punched card reader ), the Printer ( which controlled an IBM punched card punch ), the Constant Transmitter, and three Function Tables.

According to Karl Mannheim's historical reconstruction of the shifts in the meaning of ideology, the modern meaning of the word was born when Napoleon Bonaparte ( as a politician ) used it in an abusive way against " the ideologues " ( a group which included Cabanis, Condorcet, Constant, Daunou, Say, Madame de Staël, and Tracy ), to express the pettiness of his ( liberal republican ) political opponents.

Distilled water is also used in Constant Positive Airway Pressure ( CPAP ) machines.

Some claim that it was invented by the philosopher Victor Cousin, although Angela Leighton in the publication On Form: Poetry, Aestheticism and the Legacy of a Word ( 2007 ) notes that the phrase was used by Benjamin Constant as early as 1804.

Constant voltage welding power supplies are most commonly used ; however, constant current systems in combination with a voltage sensing wire-feeder are available.

Constant bitrate ( CBR ) is a term used in telecommunications, relating to the quality of service.

* Constant Pressure System, a technology used in some Super Soakers

Constant current power supplies are most often used for manual welding processes such as gas tungsten arc welding and shielded metal arc welding, because they maintain a relatively constant current even as the voltage varies.

Constant voltage power supplies hold the voltage constant and vary the current, and as a result, are most often used for automated welding processes such as gas metal arc welding, flux cored arc welding, and submerged arc welding.

Constant voltage, direct current power source is most commonly used with GMAW, but constant current alternating current are used as well.

* Constant voltage transformer, a type of saturating transformer used as an AC voltage stabilizer

Expressionism was also exhibited in the Latemse School, where adherents like Constant Permeke and Hubert Malfait used brushwork in painting and loose form in sculpture to show a mystic reality behind nature.

Constant capital ( c ), is a concept created by Karl Marx and used in Marxian political economy.

Constant capital has both fixed and circulating components: for example, the fixed constant capital would include a factory and the machinery in it, while the circulating constant capital would include the raw matericals used and the intermediate inputs produced by the factory.

* MICAWBER ( Missile In Constant Altitude While BEam Riding ), similar to CASWTD, but with a terminal low-level glide phase so that the Mark 2 variant could be used against ships.

* It is often used in the sugar refining industry for decolorizing ( a process patented by Louis Constant in 1812 ).

Constant Angular Acceleration ( CAA ) is a variant of CLV that was used on the Laserdisc format.

This can be used to constrain fundamental constants like the Gravitational Constant or possibly to detect Gravitational Waves.