1367SN/A<?xml version="1.0" encoding="UTF-8" standalone="no"?> 2462SN/A<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title></title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part��III.�� Extensions" /><link rel="prev" href="extensions.html" title="Part��III.�� Extensions" /><link rel="next" href="ext_compile_checks.html" title="Chapter��16.��Compile Time Checks" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="extensions.html">Prev</a>��</td><th width="60%" align="center">Part��III.�� 3367SN/A Extensions 4367SN/A 5367SN/A</th><td width="20%" align="right">��<a accesskey="n" href="ext_compile_checks.html">Next</a></td></tr></table><hr /></div><div class="preface"><div class="titlepage"><div><div><h1 class="title"><a id="manual.ext.preface"></a></h1></div></div></div><p> 6367SN/A Here we will make an attempt at describing the non-Standard 7367SN/A extensions to the library. Some of these are from older versions of 8367SN/A standard library components, namely SGI's STL, and some of these are 9367SN/A GNU's. 10367SN/A</p><p><span class="emphasis"><em>Before</em></span> you leap in and use any of these 11367SN/Aextensions, be aware of two things: 12367SN/A</p><div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><p> 13367SN/A Non-Standard means exactly that. 14367SN/A </p><p> 15367SN/A The behavior, and the very 16367SN/A existence, of these extensions may change with little or no 17367SN/A warning. (Ideally, the really good ones will appear in the next 18367SN/A revision of C++.) Also, other platforms, other compilers, other 19367SN/A versions of g++ or libstdc++ may not recognize these names, or 20367SN/A treat them differently, or... 21367SN/A </p></li><li class="listitem"><p> 22367SN/A You should know how to access these headers properly. 23367SN/A </p></li></ol></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="extensions.html">Prev</a>��</td><td width="20%" align="center"><a accesskey="u" href="extensions.html">Up</a></td><td width="40%" align="right">��<a accesskey="n" href="ext_compile_checks.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Part��III.�� 24367SN/A Extensions 25367SN/A 26367SN/A��</td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top">��Chapter��16.��Compile Time Checks</td></tr></table></div></body></html>