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diff --git a/doc/info/chap/introduction.texinfo b/doc/info/chap/introduction.texinfo new file mode 100644 index 0000000..e846bda --- /dev/null +++ b/doc/info/chap/introduction.texinfo @@ -0,0 +1,42 @@ +@node Introduction +@chapter Introduction + +@cpindex Hosted environment +@cpindex Unhosted environment +The C programming language does not provide +an built-in functions or constant values. +It only, provides a few basic numerical +data types. In fact, it does not even call +the function @code{main}. All of these +facilities are provided by the C standard +library. A C environment with a C standard +library is called a hosted environment; one +without it is called an unhosted environment. +Almost all software written in C are written +in hosted C. There are practically only two +types of software not written in an unhosted +environment, the C standard library (commonly +called @command{libc}) implementations +themself, and operating system kernels and +programs started before it. + +The Stockholm C Standard Library, or simply +@command{slibc}, described in this document, +is an implementaton of a C standard library for +@sc{POSIX} systems. It is aimed at supporting +@sc{C99} and newer dialects of @sc{ISO}@tie{}C, +and no other programming languages. @command{slibc} +is not aimed to replace an existing @command{libc} +implementation or suiting a particular niche. +Rather, @command{slibc} is intended as a learning +experiences for its developer. It does however, +add extensions (features) that are not defined +by the standards it covers or even existing +@command{libc} implementations. + +@command{slibc}'s header files document all +features it implements. This manual is intended +as a more extensive documentation. It is written +with the assumption that you are familiar with +the C programming language. + |