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In software engineering, double-checked locking (also known as "double-checked locking optimization" [1]) is a software design pattern used to reduce the overhead of acquiring a lock by testing the locking criterion (the "lock hint") before acquiring the lock.
Spring Boot is a convention-over-configuration extension for the Spring Java platform intended to help minimize configuration concerns while creating Spring-based applications. [ 4 ] [ 5 ] The application can still be adjusted for specific needs, but the initial Spring Boot project provides a preconfigured "opinionated view" of the best ...
The C++ Standard Library provides several generic containers, functions to use and manipulate these containers, function objects, generic strings and streams (including interactive and file I/O), support for some language features, and functions for common tasks such as finding the square root of a number.
Hence it is the original receiver entity that is the start of method lookup even though it has passed on control to some other object (through a delegation link, not an object reference). Delegation has the advantage that it can take place at run time and affect only a subset of entities of some type and can even be removed at run time.
Andrew Richard Koenig (IPA: [ˈkøːnɪç]; born June 1952) is a former AT&T and Bell Labs researcher and programmer. [2] He is the author of C Traps and Pitfalls and co-author (with Barbara Moo) of Accelerated C++ and Ruminations on C++, and his name is associated with argument-dependent name lookup, also known as "Koenig lookup", [3] though he is not its inventor. [4]
The cached method is initialized with the most common target method (or just the cache miss handler), based on the method selector. When the method call site is reached during execution, it just calls the address in the cache. (In a dynamic code generator, this call is a direct call as the direct address is back patched by cache miss logic.)
The NAG Library has C++ API; NTL is a C++ library for number theory. OpenFOAM is an open-source C++ library for solving partial differential equations in computational fluid dynamics (CFD). SU2 code is an open-source library for solving partial differential equations with the finite volume or finite element method.
A common example is the iostream library in C++, which uses the << or >> operators for the message passing, sending multiple data to the same object and allowing "manipulators" for other method calls. Other early examples include the Garnet system (from 1988 in Lisp) and the Amulet system (from 1994 in C++) which used this style for object ...