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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 ...
Signature is "Microsoft C/C++ program database 2.00\r\n\032JG\0\0"(44 bytes). Remainder of the header consists of: Page size, 4 bytes. Start page, 2 bytes. Number of file pages, 2 bytes. Root stream size, 4 bytes. reserved, 4 bytes. Root stream page number list, 2 bytes per page, enough to cover the above Root stream size.
C++20 replaced the prior version of the C++ standard, called C++17, and was later replaced by C++23. [1] The standard was technically finalized [ 2 ] by WG21 at the meeting in Prague in February 2020, [ 3 ] had its final draft version announced in March 2020, [ 4 ] was approved on 4 September 2020, [ 5 ] [ 6 ] and published in December 2020.
C++ inherits most of C's syntax. A hello world program that conforms to the C standard is also a valid C++ hello world program. The following is Bjarne Stroustrup's version of the Hello world program that uses the C++ Standard Library stream facility to write a message to standard output: [69] [70] [note 2]
Its small file size (about 100 KB for the x86 TCC executable) and memory footprint allow it to be used directly from a single 1.44 M floppy disk, such as a rescue disk. TCC is intended to produce native x86, x86-64 and ARM code very quickly; according to Bellard, it compiles, assembles and links about nine times faster than GCC does. [ 4 ]
Regarding language version support for C++ and C, since GCC 11.1 the default target is gnu++17, a superset of C++17, and gnu11, a superset of C11, with strict standard support also available. GCC also provides experimental support for C++20 and C++23 .
To create such a library, the exported functions/procedures and other objects variables must be specified for external linkage (i.e. by not using the C static keyword). Static library filenames usually have ".a" extension on Unix-like systems [1] and ".lib" extension on Microsoft Windows.
MessagePack is more compact than JSON, but imposes limitations on array and integer sizes.On the other hand, it allows binary data and non-UTF-8 encoded strings. In JSON, map keys have to be strings, but in MessagePack there is no such limitation and any type can be a map key, including types like maps and arrays, and, like YAML, numbers.