two-version loop

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• Loop inversion — is a compiler optimization, a loop transformation, which replaces a while loop by an if block containing a do..while loop. Example in C int i, a [100] ; i = 0; while (i < 100) { a [i] = 0; i++; }is equivalent to: int i, a [100] ; i = 0; if (i …   Wikipedia

• Loop unswitching — is a compiler optimization. It moves a conditional inside a loop outside of it by duplicating the loop s body, and placing a version of it inside each of the if and else clauses of the conditional. This can improve the parallelization of the loop …   Wikipedia

• Loop-erased random walk — In mathematics, loop erased random walk is a model for a random simple path with important applications in combinatorics and, in physics, quantum field theory. It is intimately connected to the uniform spanning tree, a model for a random tree.… …   Wikipedia

• Two-stroke engine — Brons two stroke V8 Diesel engine driving a Heemaf generator. A two stroke engine is an internal combustion engine that completes the process cycle in one revolution of the crankshaft (an up stroke and a down stroke of the piston, compared to… …   Wikipedia

• Loop device — In Unix like operating systems, a loop device, vnd (vnode disk), or lofi (loopback file interface) is a pseudo device that makes a file accessible as a block device.Before use, a loop device must be connected to an existing file in the filesystem …   Wikipedia

• Loop optimization — In compiler theory, loop optimization plays an important role in improving cache performance, making effective use of parallel processing capabilities, and reducing overheads associated with executing loops. Most execution time of a scientific… …   Wikipedia

• Loop space — In mathematics, the space of loops or (free) loop space of a topological space X is the space of loops from the unit circle S 1 to X together with the compact open topology. :Omega X = mathcal{C}(S^1, X).That is, a particular function space. In… …   Wikipedia

• Loop (music) — In electroacoustic music, a loop is a repeating section of sound material. Short sections of material can be repeated to create ostinato patterns. A loop can be created using a wide range of music technologies including digital samplers,… …   Wikipedia

• Loop-O-Plane — The Loop O Plane is an amusement park ride that originated in America. It was invented by the Eyerly Aircraft company of Oregon in 1929.The ride has two arms, each with an enclosed car at one end and a counterweight at the other. Each car holds… …   Wikipedia

• Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… …   Wikipedia

• For loop — In computer science a for loop is a programming language statement which allows code to be repeatedly executed. A for loop is classified as an iteration statement.Unlike many other kinds of loops, such as the while loop, the for loop is often… …   Wikipedia