Differences

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--- posix_ansi_iso_c [2024-05-13] – hanez
+++ posix_ansi_iso_c [2025-03-18] (current) – [MFC] fnord
@@ Line 1: / Line 1: @@
 ====== POSIX / ANSI / ISO C ======
-===== [[http://en.wikipedia.org/wiki/ANSI_C|ANSI / ISO C ]] =====
+===== ANSI / ISO C =====
 ANSI C / ISO C are standards designed to support an incredibly broad array of different systems and allow compiling legacy code from ages past. We can call this "standard C". Because C is standardized, there are many implementations.
@@ Line 7: / Line 7: @@
 Half of the C standard refers to the language itself, which includes specific guarantees about what types are available, what syntax you can use, et cetera. These guarantees are sometimes too broad to work with comfortably. For example, in standard C, it is guaranteed that at least the following types exist:
- * Unordered List Itemshort int, which represents at least -32767..+32767
+ * <color #ed1c24>short int</color>, which represents at least -32767..+32767
- * int, which represents at least -32767..+32767
+ * <color #ed1c24>int</color>, which represents at least -32767..+32767
- * long int, which represents at least -2147483647..+2147483647
+ * <color #ed1c24>long int</color>, which represents at least -2147483647..+2147483647
 Each type in the list must be wider than the last, but there is a lot of leeway for systems to choose different sizes. For example, on a DSP or an old supercomputer all of the types might be exactly the same size. There is also no guarantee that a byte has 8 bits (maybe it has more than 8 bits).
@@ Line 19: / Line 19: @@
 There are several versions of standard C. The most common ones are C89/C90, C99, and C11. It is not uncommon to find systems which only support C90 (for example, MSVC).
-===== [[http://en.wikipedia.org/wiki/POSIX|POSIX]] =====
+[[http://en.wikipedia.org/wiki/ANSI_C]]
+===== POSIX =====
 POSIX is a much larger and more comprehensive standard which includes standard C as a part of it. POSIX also specifies parts of the operating system. Because POSIX is standardized, there are many implementations.
@@ Line 41: / Line 43: @@
 There are several versions of POSIX.
-===== [[http://en.wikipedia.org/wiki/GNU_C_Library|GLibc]] =====
+[[http://en.wikipedia.org/wiki/POSIX]]
+===== GLibc =====
 GLibc is the GNU C library. It implements the standard C library, POSIX extensions to the C library, and some extra functionality. GLibc is not standardized and there is only one implementation.
@@ Line 49: / Line 53: @@
 Programs that use GLibc extensions are not generally portable, although certain extensions are also available on BSD systems.
-===== [[http://en.wikipedia.org/wiki/Windows_API|Win32]] =====
+[[http://en.wikipedia.org/wiki/GNU_C_Library]]
+===== Win32 =====
 Win32 is an API specific to Windows. The API provides functions not available in standard C, such as functions for creating a graphical user interface. Win32 is not standardized and there are only two implementations (Windows and WINE). Win32 provides a large set of interfaces, such as:
@@ Line 62: / Line 68: @@
 Programs written for Win32 will generally only run on Windows and possibly WINE.
-===== [[http://en.wikipedia.org/wiki/Microsoft_Foundation_Class_Library|MFC]] =====
+[[http://en.wikipedia.org/wiki/Windows_API]]
+==== MFC ====
 MFC is a library provided by Microsoft which makes it easier to write Win32 applications. It is effectively obsolete and should not be used for new projects. MFC is not standardized and there is only one implementation.
+[[http://en.wikipedia.org/wiki/Microsoft_Foundation_Class_Library]]
 Source: [[https://stackoverflow.com/questions/19697152/what-is-posix-any-other-interface-standards-which-can-replace-it]]