Ch (computer programming): Difference between revisions

Revision as of 17:10, 23 May 2012

Revision as of 08:41, 1 July 2012

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{{Multiple issues|COI = May 2011|confusing = June 2011|copy edit = June 2011}}

{{Infobox software

| name = C/C++ Interpreter Ch

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}}

In [[computing]], '''Ch''' ({{IPAc-en|icon|ˌ|s|iː|ˈ|eɪ|tʃ}}) is a proprietary [[cross-platform]] [[C (programming language)|C]] and [[C++]] [[Interpreter (computing)|interpreter]] originally designed by Harry H. Cheng as a scripting language for beginners to learn mathmaths, computing, numericsnumericals, and programming in C/C++. Ch is now developed and marketed by SoftIntegration, Inc. A student edition is freely available.

Ch is written in C and runs under [[Microsoft Windows]], [[Linux]], [[Mac OS X]], [[FreeBSD]], [[AIX]], [[Solaris (operating system)|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|variable-length array]] features were supported in Ch before they became part of the [[C99]] standard.<ref>{{cite journal | last = Cheng | first = Harry | year = 1993 | title = Handling of Complex Numbers in the Ch Programming Language | pages = 76–106 | url = http://iospress.metapress.com/content/xml874m51x1w42w0/|journal=Scientific Programming}}</ref><ref>{{cite journal | last = Cheng | first = Harry | year = 1993 | title = Scientific Computing in the Ch Programming Language | pages = 49–75 | url = http://iospress.metapress.com/content/f225771541203807/ | publisher = Scientific Programming}}</ref><ref>{{cite journal | last = Cheng | first = Harry | year = 1995 | title = Extending C and FORTRAN for Design Automation | pages = 390–395 | url = http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JMDEDB000117000003000390000001&idtype=cvips&gifs=yes&ref=no | publisher = ASME Trans., Journal of Mechanical Design}}</ref><ref>{{cite journal | last = Cheng | first = Harry | year = 1995 | title = Extending C with arrays of variable length | pages = 375–406 | url = 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 | publisher = Computer Standards & Interfaces | doi=10.1016/0920-5489(95)00007-H}}</ref> An article published by [[CRN Magazine|CRN]] named Ch as notable among C-based virtual machines for its functionality and the availability of third-party libraries.<ref>{{cite journal | last= Morejon | first=Mario| year = 2006 |title= Ch Language Rivals Java Functionality | url= http://www.crn.com/reviews/applications-os/175804126/ch-language-rivals-java-functionality.htm | publisher = CRN}}</ref>

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* Member functions

* Mixed code and declaration

* The thisThis-> pointer

* Reference type and pass-by-reference

* Function-style type conversion

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* Passing member function to argument of pointer-to-function type of functions

Ch can interfaceinteract with existing C/C++ libraries and call C/C++ functions from Ch script.<ref>{{cite journal | last = Wilson | first = Matthew | year = 2004 | title = Open-RJ and Ch | url = http://drdobbs.com/184401877?queryText=ChSDK | publisher = Dr. Dobb's Journal}}</ref>

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.<ref>{{cite journal | last = Cheng | first = Harry | year = 2009 | title = Speeding-Up Software Development Using Embedded Scripting | pages = 8-8 | url = http://drdobbs.com/architecture-and-design/212201774 | publisher = Dr. Dobb's Journal}}</ref><ref>{{cite journal|last1=Wang|first1=Li-rong | last2 = Bo | first2 = Yo|last3=Hagiwara | first3 = I | title = Mobile-C based agent management for collaborative visualization of distributed mesh model | url = http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5375178&queryText%3DMobile-C%26openedRefinements%3D*%26searchField%3DSearch+All | publisher = Computer-Aided Industrial Design & Conceptual Design, 2009. CAID & CD 2009. IEEE 10th International Conference }}</ref>

<ref>{{cite journal|last1=Wang|first1=Li-rong | last2 = Bo | first2 = Yo|last3=Hagiwara | first3 = Ichiro | title = An agent based collaborative simplification of 3D mesh model | url = http://dl.acm.org/citation.cfm?id=1813032 | year=2009 | publisher = CDVE'09 Proceedings of the 6th international conference on cooperative design, visualization, and engineering }}</ref>