C Programming Language with Reference Specifications
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A classic C programming language with reference for iPad and iPhone. Programming language is a perfect tool for complex math calculation,...
A classic C programming language with reference for iPad and iPhone. Programming language is a perfect tool for complex math calculation, entertainment and many useful tasks.The main features:- compile and run your program;- online language reference;- use example programs;- save/open source code;- send source code by email;- work with text input/output;We will add soon:- syntax highlighting;- enhanced source code editor;- additional symbols keyboard;Internet connection is required. Look to the screenshots for more information. Thanks for using the application! ========================================C (pronounced like the letter C) is a general-purpose computer programming language developed between 1969 and 1973 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.Although C was designed for implementing system software, it is also widely used for developing portable application software.C is one of the most widely used programming languages of all time and there are very few computer architectures for which a C compiler does not exist. C has greatly influenced many other popular programming languages, most notably C++, which began as an extension to C.C is an imperative (procedural) systems implementation language. It was designed to be compiled using a relatively straightforward compiler, to provide low-level access to memory, to provide language constructs that map efficiently to machine instructions, and to require minimal run-time support. C was therefore useful for many applications that had formerly been coded in assembly language.Despite its low-level capabilities, the language was designed to encourage cross-platform programming. A standards-compliant and portably written C program can be compiled for a very wide variety of computer platforms and operating systems with few changes to its source code. The language has become available on a very wide range of platforms, from embedded microcontrollers to supercomputers.The initial development of C occurred at Bell Labs between 1969 and 1973; according to Ritchie, the most creative period occurred in 1972. It was named "C" because its features were derived from an earlier language called "B", which according to Ken Thompson was a stripped-down version of the BCPL programming language.The origin of C is closely tied to the development of the Unix operating system, originally implemented in assembly language on a PDP-7 by Ritchie and Thompson, incorporating several ideas from colleagues. Eventually they decided to port the operating system to a PDP-11.The original PDP-11 version of the Unix system was developed in assembly language. By 1973, with the addition of struct types, the C language had become powerful enough that most of the Unix kernel was rewritten in C. This was one of the first operating system kernels implemented in a language other than assembly. (Earlier instances include the Multics system (written in PL/I), and MCP (Master Control Program) for the Burroughs B5000 written in ALGOL in 1961.)In 1978, Brian Kernighan and Dennis Ritchie published the first edition of The C Programming Language. This book, known to C programmers as "K&R;", served for many years as an informal specification of the language. The version of C that it describes is commonly referred to as K&R; C. The second edition of the book covers the later ANSI C standard.Even after the publication of the 1989 C standard, for many years K&R; C was still considered the "lowest common denominator" to which C programmers restricted themselves when maximum portability was desired, since many older compilers were still in use, and because carefully written K&R; C code can be legal Standard C as well.
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