Ch (computer programming)
| Developer(s) | SoftIntegration, Inc. |
|---|---|
| Initial release | Oct 01, 2001 |
| Stable release | 7.0 / February 2, 2012 |
| Written in | C |
| Operating system | Microsoft Windows, Mac OS X, Linux, AIX, HP-UX, Solaris (SPARC and X86), QNX, FreeBSD |
| Available in | English |
| Type | Integrated development environment |
| License | Proprietary software Standard edition: Freeware Student edition: Freeware for Students Professioanl edition: Trialware for 30 days |
| Website | www.softintegration.com |
Ch (
/ˌsiːˈeɪtʃ/) 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. ChIDE provides quick code navigation and step-by-step debug features. It is based on embedded Ch, Scite and Scintilla.[1]
Ch can also be run as an interactive shell to execute C statements and scripts. Unix commands can run in Unix Ch shell, and Windows commands can run in Windows Ch Shell.[2]
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.[3][4][5][6] An article published by CRN named Ch as notable among C-based virtual machines for its functionality and the availability of third-party libraries.[7]
Ch is now used and integrated into curriculum by many universities and high schools for learning computing and programming in C/C++.[8][9][10][11][12][13]
Contents |
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.[14] 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.[15][16][17]
Ch has a built-in string type (string_t) for automatic memory allocation and de-allocation. It supports shell aliases, history, piping, etc.[18][19]
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.[20]
See also
References
- ^ Ch IDE
- ^ Wang, Gary (2002). Ch Solves Portability Headaches. IEEE Spectrum. http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1049264.
- ^ Cheng, Harry (1993). "Handling of Complex Numbers in the Ch Programming Language". Scientific Programming: 76–106. http://iospress.metapress.com/content/xml874m51x1w42w0/.
- ^ Cheng, Harry (1993). Scientific Computing in the Ch Programming Language. Scientific Programming. pp. 49–75. http://iospress.metapress.com/content/f225771541203807/.
- ^ Cheng, Harry (1995). Extending C and FORTRAN for Design Automation. ASME Trans., Journal of Mechanical Design. pp. 390–395. http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JMDEDB000117000003000390000001&idtype=cvips&gifs=yes&ref=no.
- ^ Cheng, Harry (1995). "Extending C with arrays of variable length". Computer Standards & Interfaces (Computer Standards & Interfaces) 17 (4): 375–406. doi:10.1016/0920-5489(95)00007-H. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TYV-3Y6PCHF-V&_user=10&_coverDate=09%2F15%2F1995&_alid=1737140035&_rdoc=1&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5628&_sort=r&_st=13&_docanchor=&view=c&_ct=1&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=1369ffa56fdef3033135fa8fc1eb4c15&searchtype=a.
- ^ Morejon, Mario (2006). Ch Language Rivals Java Functionality. CRN. http://www.crn.com/reviews/applications-os/175804126/ch-language-rivals-java-functionality.htm.
- ^ Cheng, Harry (2009). C for the Course. ASME Mechanical Engineering Magazine. pp. 50–52. http://memagazine.asme.org/Articles/2009/september/C_Course.cfm.
- ^ Huber, Tom (2010). "An Introduction to C and Ch: Your One-Stop Shop for Scientific Computing". Computing in Science & Engineering (IEEE Computing in Science and Engineering) 12 (4): 7. doi:10.1109/MCSE.2010.82. http://www.computer.org/portal/web/csdl/doi/10.1109/MCSE.2010.82.
- ^ Liu, Li; Wang, Zhaoqing; Jiang, Xusheng (2010). Anchor-based programming teaching embedded with Ch platform. Mechatronics and Embedded Systems and Applications (MESA), IEEE/ASME International Conference. pp. 49–52. http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5552033.
- ^ Furman, B.; Wertz, E. (2010). A first course in computer programming for mechanical engineers. Mechatronics and Embedded Systems and Applications (MESA), IEEE/ASME International Conference. pp. 70–75. http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?reload=true&arnumber=5552091.
- ^ ZHUANG, Hong; WANG, Zhao-qing (2009). Experience of Using Ch for Teaching Computer Programming in C. Computer Education. pp. TP311.11–4. doi:CKNI:SUN:JYJS.0.2009-07-016. http://en.cnki.com.cn/Article_en/CJFDTOTAL-JYJS200907016.htm.
- ^ WANG, RONG (2009). Study of C Language Programming Teaching Method on platform Ch. Journal of Weinan Teachers University. pp. TP312.1–4. doi:CNKI:SUN:WOLF.0.2009-05-018. http://en.cnki.com.cn/Article_en/CJFDTOTAL-WOLF200905018.htm.
- ^ Wilson, Matthew (2004). Open-RJ and Ch. Dr. Dobb's Journal. http://drdobbs.com/184401877?queryText=ChSDK.
- ^ Cheng, Harry (2009). Speeding-Up Software Development Using Embedded Scripting. Dr. Dobb's Journal. pp. 8–8. http://drdobbs.com/architecture-and-design/212201774.
- ^ Wang, Li-rong; Bo, Yo; Hagiwara, I. Mobile-C based agent management for collaborative visualization of distributed mesh model. Computer-Aided Industrial Design & Conceptual Design, 2009. CAID & CD 2009. IEEE 10th International Conference. http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5375178&queryText%3DMobile-C%26openedRefinements%3D*%26searchField%3DSearch+All.
- ^ Wang, Li-rong; Bo, Yo; Hagiwara, Ichiro (2009). An agent based collaborative simplification of 3D mesh model. CDVE'09 Proceedings of the 6th international conference on cooperative design, visualization, and engineering. http://dl.acm.org/citation.cfm?id=1813032.
- ^ Campbell, Matt (2003). Ch, A C/C++ Interpreter – New possibilities for people who like C and Unix. MACTECH, the journal of Apple technology. http://www.mactech.com/articles/mactech/Vol.19/19.09/CInterpreter/index.html.
- ^ Cheng, Harry (2010). The Ch Language Environment (6.3 ed.). Davis, CA: SoftIntegration , Inc..
- ^ Glassborow, Francis (2001). The Ch Language Environment Version 2.0. C Vu Magazine. pp. 36–37. http://www.softintegration.com/company/pub/accu.html.
Further reading
- Heller, Martin (2001). The Ch Language Environment. Byte Magazine. http://replay.waybackmachine.org/20011116220556/http://www.byte.com/documents/s=1776/byt20011031s0002/1105_heller.html.
- Cheng, Harry (2002). C99 & Numeric Computing. Dr. Dobb's Journal. pp. 28–34. http://drdobbs.com/cpp/184404993.
- Cheng, Harry (2006). Ch: A C/C++ Interpreter for Script Computing. Dr. Dobb's Journal. pp. 6–12. http://drdobbs.com/184402054.
- Cheng, Harry (2009). C For Engineers & Scientists, An Interpretive Approach. McGraw-Hill. ISBN 978-0-07-729046-7. http://highered.mcgraw-hill.com/sites/0073376051/.
- Cheng, Harry (2011). C For Engineers & Scientists (Chinese Edition). Higher Education Press. ISBN 978-0-07-729046-7. http://www.amazon.cn/C%E8%AF%AD%E8%A8%80%E7%A8%8B%E5%BA%8F%E8%AE%BE%E8%AE%A1%E6%95%99%E7%A8%8B-%E7%A8%8B%E8%BE%89/dp/B005JR8IW6/ref=sr_1_1?s=books&ie=UTF8&qid=1325463722&sr=1-1.
