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Ch is a proprietary cross-platform C and C++ interpreter originally designed by Harry H. Cheng as a scripting language for beginners to learn mathematics, computing, numeric methods, and programming in C/C++. Ch is now developed and marketed by SoftIntegration, Inc. A student edition is freely available. Ch can be embedded into the C/C++ application programs. It has numerical computing and graphical plotting features. Ch is a combined shell and IDE. Ch shell combines the features of common shell and C language.〔(Ch Shell )〕 ChIDE provides quick code navigation and symbolic debugging. It is based on embedded Ch, Scite and Scintilla.〔(Ch IDE )〕 Ch is written in C and runs under Microsoft Windows, Linux, Mac OS X, FreeBSD, AIX, Solaris, QNX, and HP-UX. It supports C90 and major C99 features, but it does not support the full set of C++ features. C99 complex number, IEEE-754 floating-point arithmetic, and variable-length array features were supported in Ch before they became part of the C99 standard. An article published by CRN named Ch as notable among C-based virtual machines for its functionality and the availability of third-party libraries. Ch is now used and integrated into curriculum by many universities and high schools for learning computing and programming in C/C++. == Features == Ch supports the 1999 ISO C Standard (C99) and C++ classes. It is a superset of C with C++ classes. Several major features of C99 are supported, such as complex numbers, variable length arrays (VLAs), IEEE-754 floating-point arithmetic, and generic mathematical functions. The specification for wide characters in Addendum 1 for C90 is also supported. The following C++ features are available in Ch: * Member functions * Mixed code and declaration * The ''this'' -> pointer * Reference type and pass-by-reference * Function-style type conversion * Classes * Private/public data and functions in classes. Ch is compatible with C++ in that by default, members of a class definition are assumed to be private until a 'public' declaration is given * Static member of class/struct/union * Const member functions * The new and delete operators * Constructors and destructors * Polymorphic functions * The scope resolution operator :: * The I/O functions cout, cerr, and cin with endl * Arguments for variadic functions are optional Ch supports classes in C++ with the following additional capabilities: * Classes inside member functions * Nested functions with classes * Passing member function to argument of pointer-to-function type of functions Ch can interact with existing C/C++ libraries and call C/C++ functions from Ch script. As a C/C++ interpreter, Ch can be used as a scripting engine and extension language for applications. Pointers to arrays or variables can be passed and shared in both C-compiled and Ch scripting contexts. One example of an embedded Ch scripting application is Mobile-C, which has been used for collaborative visualization of distributed mesh model. Ch has a built-in string type (string_t) for automatic memory allocation and de-allocation. It supports shell aliases, history, piping, etc. Ch has built-in 2D/3D graphical plotting features and computational arrays for numerical computing. A 2D linear equation of the form ''b = A *x'' can be written verbatim in Ch. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ch (computer programming)」の詳細全文を読む スポンサード リンク
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