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Auto Ptr
auto_ptr is a class template that was available in previous versions of the C++ standard library (declared in the header file), which provides some basic RAII features for C++ raw pointers. It has been replaced by the unique_ptr class. The auto_ptr template class describes an object that stores a pointer to a single allocated object that ensures that the object to which it points gets destroyed automatically when control leaves a scope. The C++11 standard made auto_ptr deprecated, replacing it with the unique_ptr class template. auto_ptr was fully removed in C++17. For shared ownership, the shared_ptr template class can be used. shared_ptr was defined in C++11 and is also available in the Boost library for use with previous C++ versions. Declaration The auto_ptr class is declared in ISO/IEC 14882, section 20.4.5 as: namespace std Semantics The auto_ptr has semantics of strict ownership, meaning that the auto_ptr instance is the sole entity responsible for the object's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Template (programming)
Templates are a feature of the C++ programming language that allows functions and classes to operate with generic types. This allows a function or class to work on many different data types without being rewritten for each one. The C++ Standard Library provides many useful functions within a framework of connected templates. Major inspirations for C++ templates were the parameterized modules provided by CLU and the generics provided by Ada. Technical overview There are three kinds of templates: ''function templates'', ''class templates'' and, since C++14, ''variable templates''. Since C++11, templates may be either variadic or non-variadic; in earlier versions of C++ they are always non-variadic. Function templates A ''function template'' behaves like a function except that the template can have arguments of many different types (see example). In other words, a function template represents a family of functions. The format for declaring function templates with type para ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Null Pointer
In computing, a null pointer or null reference is a value saved for indicating that the pointer or reference does not refer to a valid object. Programs routinely use null pointers to represent conditions such as the end of a list of unknown length or the failure to perform some action; this use of null pointers can be compared to nullable types and to the ''Nothing'' value in an option type. A null pointer should not be confused with an uninitialized pointer: a null pointer is guaranteed to compare unequal to any pointer that points to a valid object. However, depending on the language and implementation, an uninitialized pointer may not have any such guarantee. It might compare equal to other, valid pointers; or it might compare equal to null pointers. It might do both at different times; or the comparison might be undefined behaviour. C In C, two null pointers of any type are guaranteed to compare equal. The preprocessor macro NULL is defined as an implementation-defined n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Articles With Example C++ Code
Article often refers to: * Article (grammar), a grammatical element used to indicate definiteness or indefiniteness * Article (publishing), a piece of nonfictional prose that is an independent part of a publication Article may also refer to: Government and law * Article (European Union), articles of treaties of the European Union * Articles of association, the regulations governing a company, used in India, the UK and other countries * Articles of clerkship, the contract accepted to become an articled clerk * Articles of Confederation, the predecessor to the current United States Constitution *Articles of Impeachment, Article of Impeachment, a formal document and charge used for impeachment in the United States * Articles of incorporation, for corporations, U.S. equivalent of articles of association * Articles of organization, for limited liability organizations, a U.S. equivalent of articles of association Other uses * Article, an HTML element, delimited by the tags and * Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scott Meyers
Scott Douglas Meyers (born April 9, 1959) is an American author and software consultant, specializing in the C++ computer programming language. He is known for his ''Effective C++'' book series. During his career, he was a frequent speaker at conferences and trade shows. Biography He holds a Ph.D. in computer science from Brown University and an M.S. in computer science from Stanford University. He conceived and, with Herb Sutter, Andrei Alexandrescu, Dan Saks, and Steve Dewhurst, co-organized and presented the boutique (limited-attendance) conference, ''The C++ Seminar'', which took place three times in 2001-2002. He also conceived and, with Sutter and Alexandrescu, co-organized and presented another boutique conference, ''C++ and Beyond'' annually in 2010-2014. Meyers has expressed opposition to asking programmers to solve design or programming problems during job interviews:"I hate anything that asks me to design on the spot. That's asking to demonstrate a skill rarely requir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeeshan Amjad
Zeeshan (Zişan) or Zeshan (Zeşan) is a Turkish given name, derived from words "Zee" ''(possessor of,'' from Arabic ''ذو)'' and "Shan" ''(high status'' or ''splendor,'' from Arabic شأن'')'', sometimes simply translated as "princely" or "Moon". This word is also used in Persian, Urdu and sometimes in Turkish poetry as an adjective. In South Asia, this name is mostly used for males; however, the name is neutral in gender and can also be used for females (mostly in Turkey) with meanings "Moon", "magnificent" and "brilliant". Variant forms and similar names The diminutive or nickname for Zeeshan is Shaan or "Shani". Jishan is a Bihari and Indian cognate for the same word, so written due to the lack of a native 'Z' sound in Sanskrit-derived languages. Notable people with this name * Zeshan Zaffar (born July 04, 1990), Pakistani Lecturer of International Relations *Zeeshan Abbasi (born 1982), Pakistani blind cricketer *Zeeshan Ali (born 1970), Indian tennis player *Zees ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danny Kalev
Danny is a masculine given name. It is related to the male name Daniel. It may refer to: People *Danny Altmann, British immunologist *Danny Antonucci, Canadian animator, director, producer, and writer *Danny Baker (born 1957), English journalist, radio and TV presenter * Danny Barnes (other), several people *Danny Bonaduce (born 1959), American radio/television personality, comedian *Danny Brown (born 1981), American rapper *Danny Joe Brown (1951–2005), American singer, Molly Hatchet *Danny Burawa (born 1988), American baseball player *Danny Carey (born 1961), American drummer, Tool *Danny Clark (other), several people *Danny Collins (footballer) (born 1980), Welsh footballer *Danny Boy Collins (born 1967), English wrestler * Danny Coulombe (born 1989), American baseball player *Danny Cox (other), several people *Danny Denzongpa (born 1948), Indian actor *Danny DeVito (born 1944), Italian-American actor, comedian, producer and director *Danny Donnelly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Generic Programming
Generic programming is a style of computer programming in which algorithms are written in terms of types ''to-be-specified-later'' that are then ''instantiated'' when needed for specific types provided as parameters. This approach, pioneered by the ML programming language in 1973, permits writing common functions or types that differ only in the set of types on which they operate when used, thus reducing duplication. Such software entities are known as ''generics'' in Ada, C#, Delphi, Eiffel, F#, Java, Nim, Python, Go, Rust, Swift, TypeScript and Visual Basic .NET. They are known as '' parametric polymorphism'' in ML, Scala, Julia, and Haskell (the Haskell community also uses the term "generic" for a related but somewhat different concept); ''templates'' in C++ and D; and ''parameterized types'' in the influential 1994 book ''Design Patterns''. The term "generic programming" was originally coined by David Musser and Alexander Stepanov in a more specific se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New (C++)
In the C++ programming language, and are a pair of language constructs that perform dynamic memory allocation, object construction and object destruction. Overview Except for a form called the "placement new", the operator denotes a request for memory allocation on a process's heap. If sufficient memory is available, initialises the memory, calling object constructors if necessary, and returns the address to the newly allocated and initialised memory. A request, in its simplest form, looks as follows: p = new T; where is a previously declared pointer of type (or some other type to which a pointer can be assigned, such as a superclass of ). The default constructor for , if any, is called to construct a instance in the allocated memory buffer. If not enough memory is available in the free store for an object of type , the request indicates failure by throwing an exception of type . This removes the need to explicitly check the result of an allocation. The deallocat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malloc
C dynamic memory allocation refers to performing manual memory management for dynamic memory allocation in the C programming language via a group of functions in the C standard library, namely , , , and . The C++ programming language includes these functions; however, the operators and provide similar functionality and are recommended by that language's authors. Still, there are several situations in which using new/delete is not applicable, such as garbage collection code or performance-sensitive code, and a combination of malloc and placement new may be required instead of the higher-level new operator. Many different implementations of the actual memory allocation mechanism, used by , are available. Their performance varies in both execution time and required memory. Rationale The C programming language manages memory statically, automatically, or dynamically. Static-duration variables are allocated in main memory, usually along with the executable code of the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 14882
C++ (pronounced "C plus plus") is a high-level general-purpose programming language created by Danish computer scientist Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significantly over time, and modern C++ now has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation. It is almost always implemented as a compiled language, and many vendors provide C++ compilers, including the Free Software Foundation, LLVM, Microsoft, Intel, Embarcadero, Oracle, and IBM, so it is available on many platforms. C++ was designed with systems programming and embedded, resource-constrained software and large systems in mind, with performance, efficiency, and flexibility of use as its design highlights. C++ has also been found useful in many other contexts, with key strengths being software infrastructure and resource-constrained applications, including desktop applications ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C++ Standard Library
The C standard library or libc is the standard library for the C programming language, as specified in the ISO C standard.ISO/IEC (2018). '' ISO/IEC 9899:2018(E): Programming Languages - C §7'' Starting from the original ANSI C standard, it was developed at the same time as the C library POSIX specification, which is a superset of it. Since ANSI C was adopted by the International Organization for Standardization, the C standard library is also called the ISO C library. The C standard library provides macros, type definitions and functions for tasks such as string handling, mathematical computations, input/output processing, memory management, and several other operating system services. Application programming interface Header files The application programming interface (API) of the C standard library is declared in a number of header files. Each header file contains one or more function declarations, data type definitions, and macros. After a long period of stabil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boost Library
Boost is a set of libraries for the C++ programming language that provides support for tasks and structures such as linear algebra, pseudorandom number generation, multithreading, image processing, regular expressions, and unit testing. It contains 164 individual libraries (as of version 1.76). All of the Boost libraries are licensed under the Boost Software License, designed to allow Boost to be used with both free and proprietary software projects. Many of Boost's founders are on the C++ standards committee, and several Boost libraries have been accepted for incorporation into the C++ Technical Report 1, the C++11 standard (e.g. smart pointers, thread, regex, random, ratio, tuple) and the C++17 standard (e.g. filesystem, any, optional, variant, string_view). The Boost community emerged around 1998, when the first version of the standard was released. It has grown continuously since then and now plays a big role in the standardization of C++. Even though there is no formal re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
