Ch is a proprietary

cross-platform In computing, cross-platform software (also called multi-platform software, platform-agnostic software, or platform-independent software) is computer software that is designed to work in several computing platforms. Some cross-platform software ...

C and

C++ 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 significan ...

interpreter and scripting language environment, originally designed by Harry H. Cheng as a scripting language for beginners to learn mathematics, computing,

numerical analysis Numerical analysis is the study of algorithms that use numerical approximation (as opposed to symbolic manipulations) for the problems of mathematical analysis (as distinguished from discrete mathematics). It is the study of numerical methods ...

(numeric methods), and programming in C/C++. Ch is now developed and marketed by SoftIntegration, Inc. A student edition is freely available. Ch Professional Edition for Raspberry Pi is free for non-commercial use. Ch can be embedded in 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. ChIDE provides quick code navigation and symbolic debugging. It is based on embedded Ch, Scite and Scintilla. Ch is written in C and runs on

Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for ser ...

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, w ...

macOS macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and lapt ...

, FreeBSD,

AIX Aix or AIX may refer to: Computing * AIX, a line of IBM computer operating systems *An Alternate Index, for a Virtual Storage Access Method Key Sequenced Data Set * Athens Internet Exchange, a European Internet exchange point Places Belgi ...

, Solaris,

QNX QNX ( or ) is a commercial Unix-like real-time operating system, aimed primarily at the embedded systems market. QNX was one of the first commercially successful microkernel operating systems. The product was originally developed in the early ...

, 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 In computer programming, a variable-length array (VLA), also called variable-sized or runtime-sized, is an array data structure whose length is determined at run time (instead of at compile time). In C, the VLA is said to have a variably modified t ...

features were supported in Ch before they became part of the

C99 C99 (previously known as C9X) is an informal name for ISO/IEC 9899:1999, a past version of the C programming language standard. It extends the previous version ( C90) with new features for the language and the standard library, and helps impl ...

standard. An article published by ''Computer Reseller News'' ( CRN) named Ch as notable among C-based virtual machines for its functionality and the availability of third-party libraries. Ch has many tool kits that extend its functions. For example, Ch Mechanism Toolkit is used for design and analysis of commonly used mechanisms such as four-bar linkage, five-bar linkage, six-bar linkage, crank-slider mechanism, and cam-follower system. Ch Control System Toolkit is used for modeling, design, and analysis of continuous-time or discrete-time linear time invariant (LTI) control systems. Both tool kits includes the source code. Ch is now used and integrated into curriculum by many high schools and universities to teach computing and programming in C/C++. Ch has been integrated into free C-STEM Studio, a platform for learning computing, science, technology, engineering, and mathematics (C-STEM) with robotics. C-STEM Studio is developed by UC Davis Center for Integrated Computing and STEM Education (C-STEM). It offers the curriculum for K-12 students. Ch supports LEGO Mindstorms NXT and EV3, Arduino, Linkbot, Finch Robot, RoboTalk and Raspberry Pi, Pi Zero, and ARM for robot programming and learning. It can also be embedded into the

LabVIEW Laboratory Virtual Instrument Engineering Workbench (LabVIEW) is a system-design platform and development environment for a visual programming language from National Instruments. The graphical language is named "G"; not to be confused with G-c ...

system-design platform and development environment.

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. C++ features available in Ch include: * Member functions * Mixed code and declaration * The ''

this This may refer to: * ''This'', the singular proximal demonstrative pronoun Places * This, or ''Thinis'', an ancient city in Upper Egypt * This, Ardennes, a commune in France People with the surname * Hervé This, French culinary chemist Arts, ...

'' -> 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 function In mathematics and in computer programming, a variadic function is a function of indefinite arity, i.e., one which accepts a variable number of arguments. Support for variadic functions differs widely among programming languages. The term ''vari ...

s are optional Ch supports classes in C++ with added abilities, including: * 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 An array is a systematic arrangement of similar objects, usually in rows and columns. Things called an array include: {{TOC right Music * In twelve-tone and serial composition, the presentation of simultaneous twelve-tone sets such that the ...

for numerical computing. A 2D linear equation of the form ''b = A*x'' can be written verbatim in Ch.

References

External links

* , SoftIntegration
Mobile-C: a Multi-Agent Platform for Mobile C/C++ Agents Home Page

C-STEM Studio
{{DEFAULTSORT:Ch Interpreter C programming language family Educational programming languages Interpreters (computing) Pedagogic integrated development environments

Features

See also

References

Further reading

External links