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<title>Introduction (The Red Hat newlib C Library)</title>

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<a name="Introduction-1"></a>
<h2 class="chapter">1 Introduction</h2>

<p>This reference manual describes the functions provided by the Red Hat
&ldquo;newlib&rdquo; version of the standard ANSI C library.  This document is not
intended as an overview or a tutorial for the C library.  Each library
function is listed with a synopsis of its use, a brief description,
return values (including error handling), and portability issues.
</p>
<p>Some of the library functions depend on support from the underlying
operating system and may not be available on every platform.  For
embedded systems in particular, many of these underlying operating
system services may not be available or may not be fully functional.
The specific operating system subroutines required for a particular
library function are listed in the &ldquo;Portability&rdquo; section of the
function description.  See <a href="Syscalls.html#Syscalls">Syscalls</a>, for a description of the
relevant operating system calls.
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