Search results
Results From The WOW.Com Content Network
Include directive. Many programming languages and other computer files have a directive, often called include, import, or copy, that causes the contents of the specified file to be inserted into the original file. These included files are called header files or copybooks. They are often used to define the physical layout of program data, pieces ...
Overview. 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.
Header-only. In the context of the C or C++ programming languages, a library is called header-only if the full definitions of all macros, functions and classes comprising the library are visible to the compiler in a header file form. [ 1] Header-only libraries do not need to be separately compiled, packaged and installed in order to be used.
C++ classes. A class in C++ is a user-defined type or data structure declared with any of the keywords class, struct or union (the first two are collectively referred to as non-union classes) that has data and functions (also called member variables and member functions) as its members whose access is governed by the three access specifiers ...
A notable difference between C++ and Objective-C when making use of these implementation files is the extensions used at the end of the files. In C++ it will be .cpp [14] and in Objective-C it will be .m , [15] but both will use the same .h extension for their header file(s) [16] [17] as shown in the example below.
In the context of the programming language C++, functional refers to a header file that is part of the C++ Standard Library and provides a set of predefined class templates for function objects, including operations for arithmetic, comparisons, and logic. Instances of these class templates are C++ classes that define a function call operator ...
include guard. In the C and C++ programming languages, an #include guard, sometimes called a macro guard, header guard or file guard, is a particular construct used to avoid the problem of double inclusion when dealing with the include directive. The C preprocessor processes directives of the form #include <file> in a source file by locating ...
In the C++ programming language, input/output library refers to a family of class templates and supporting functions in the C++ Standard Library that implement stream-based input/output capabilities. [ 1][ 2] It is an object-oriented alternative to C's FILE -based streams from the C standard library. [ 3][ 4]