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In object-oriented programming, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance. It is one of the well-known "Gang of Four" design patterns , which describe how to solve recurring problems in object-oriented software. [ 1 ]
In coding theory, the Singleton bound, named after Richard Collom Singleton, is a relatively crude upper bound on the size of an arbitrary block code with block length , size and minimum distance . It is also known as the Joshibound [ 1 ] proved by Joshi (1958) and even earlier by Komamiya (1953) .
In software engineering, a software design pattern or design pattern is a general, reusable solution to a commonly occurring problem in many contexts in software design. [1] A design pattern is not a rigid structure that can be transplanted directly into source code. Rather, it is a description or a template for solving a particular type of ...
The book includes examples in C++ and Smalltalk. It has been influential to the field of software engineering and is regarded as an important source for object-oriented design theory and practice. More than 500,000 copies have been sold in English and in 13 other languages. [ 1 ]
Then the decoding algorithm is a two-step process: Use the MLD of the inner code C in to reconstruct a set of inner code words y' = (y' 1, ..., y' N), with y' i = MLD C in (y i), 1 ≤ i ≤ N. Run the unique decoding algorithm for C out on y'. Now, the time complexity of the first step is O(N⋅exp(n)), where n = O(log(N)) is the inner block ...
In software engineering, the initialization-on-demand holder (design pattern) idiom is a lazy-loaded singleton. In all versions of Java, the idiom enables a safe, highly concurrent lazy initialization of static fields with good performance. [1] [2]
A snippet of C code which prints "Hello, World!". The syntax of the C programming language is the set of rules governing writing of software in C. It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.
In the thread-safe C++ example the single instance is allocated with new. I do not see how the destructor would ever be called. Shouldn't the example us an auto_ptr or equivilant? —The preceding JohnCFemiani 15:45, 7 December 2006 (UTC) Done; thanks for catching that. I'm thinking that perhaps we should get rid of the C++ examples altogether.