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The C programming language provides many standard library functions for file input and output.These functions make up the bulk of the C standard library header <stdio.h>. [1] The functionality descends from a "portable I/O package" written by Mike Lesk at Bell Labs in the early 1970s, [2] and officially became part of the Unix operating system in Version 7.
Some compilers (for example, GCC [8]) provide built-in versions of many of the functions in the C standard library; that is, the implementations of the functions are written into the compiled object file, and the program calls the built-in versions instead of the functions in the C library shared object file.
C--C--language source Sphinx C-- C: C language source. Note that on case-sensitive platforms like Unix and with the gcc compiler the uppercase .C extension indicates a C++ source file. [31] Watcom C/C++, Borland C/C++, gcc and other C compilers C: Unix file archive COMPACT C++: C++ language source CPP: C++ language source Config Configuration ...
Without such precautions, most programs may compile only on a certain platform or with a particular compiler, due, for example, to the use of non-standard libraries, such as GUI libraries, or to the reliance on compiler- or platform-specific attributes such as the exact size of certain data types and byte endianness.
The PDP-11 used 3-bit fields for addressing modes (0-7) so there were (electronically) 8 addressing modes. An additional 3-bit field specified the registers (R0–R5, SP, PC). Immediate and absolute address operands applying the two autoincrement modes to the Program Counter (R7), provided a total of 10 conceptual addressing modes.
C17, formally ISO/IEC 9899:2018, [1] is an open standard for the C programming language, prepared in 2017 and published in July 2018. It replaced C11 (standard ISO/IEC 9899:2011), [2] and is superseded by C23 (ISO/IEC 9899:2024) since October 2024. [3]
the original BASIC version. It was a compiler. Later versions included MAT statements for matrix operations. See also True BASIC. Data General Business Basic (Data General Nova and later DG minicomputers) Data/BASIC See: Pick/BASIC for use on the Pick Operating System Databasic See: Pick/BASIC for use on the Pick Operating System DBASIC
English: Printable pdf version of C Programming Wikibook. This file was created with MediaWiki to LaTeX . The LaTeX source code is attached to the PDF file (see imprint).