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Qu'est-ce (qui) est lookup - définition

ARRAY DATA STRUCTURE THAT REPLACES RUNTIME COMPUTATION WITH A SIMPLER ARRAY INDEXING OPERATION

Look-up table; Look up table; Look-up; Lookup; VLOOKUP; Table (computing); Table lookup; XLOOKUP

lookup

¦ noun [usu. as modifier] systematic electronic information retrieval.

Lookup table

In computer science, a lookup table (LUT) is an array that replaces runtime computation with a simpler array indexing operation. The process is termed as "direct addressing" and LUTs differ from hash tables in a way that, to retrieve a value v with key k, a hash table would store the value v in the slot h(k) where h is a hash function i.

https://en.wikipedia.org/wiki/Lookup_table

Argument-dependent name lookup

C++ BEHAVIOR

Koenig Lookup; Argument dependent lookup; Koenig lookup; Argument dependent name lookup; Argument-dependent lookup

In the C++ programming language, argument-dependent lookup (ADL), or argument-dependent name lookup, applies to the lookup of an unqualified function name depending on the types of the arguments given to the function call. This behavior is also known as Koenig lookup, as it is often attributed to Andrew Koenig, though he is not its inventor.

https://en.wikipedia.org/wiki/Argument-dependent_name_lookup

Wikipédia

Lookup table

In computer science, a lookup table (LUT) is an array that replaces runtime computation with a simpler array indexing operation. The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive" computation or input/output operation. The tables may be precalculated and stored in static program storage, calculated (or "pre-fetched") as part of a program's initialization phase (memoization), or even stored in hardware in application-specific platforms. Lookup tables are also used extensively to validate input values by matching against a list of valid (or invalid) items in an array and, in some programming languages, may include pointer functions (or offsets to labels) to process the matching input. FPGAs also make extensive use of reconfigurable, hardware-implemented, lookup tables to provide programmable hardware functionality.

https://en.wikipedia.org/wiki/Lookup table

Exemples du corpus de texte pour lookup

1. Company Lookup helps to search for existing companies operating in Dubai and gain information on their contact details and business activities.

2. Text÷ June Jobs Reports Floyd Norris÷ Who Cares About Inflation? • Market Update÷ U.S. | World • View Your Personal Portfolio Stock Quotes÷ Symbol Lookup The unemployment rate dipped another notch, to 5 percent, the lowest level in nearly four years.

3. Skip to next paragraph The Markets React Attacks in Central London • Market Update÷ U.S. | World • View Your Personal Portfolio Stock Quotes÷ Symbol Lookup RECENT RESEARCH The Economic and Financial Impacts of Terrorism (rgemonitor.com) Terrorism and the World Economy (harvard.edu) Calculating Tragedy÷ Assessing the Costs of Terrorism (http÷//opus.zbw–kiel.de) Fear and the Response to Terrorism÷ An Economic Analysis (cornell.edu) The Economic Consequences of Terror÷ A Brief Survey (hicn.org) The Effects of Terrorism on Global Capital Markets (harvard.edu) European stock markets cut their early losses by more than half, while stocks in the United States crossed into positive territory in the last hour of trading in New York.