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diff --git a/gcc-4.8.1/libstdc++-v3/doc/html/manual/ext_demangling.html b/gcc-4.8.1/libstdc++-v3/doc/html/manual/ext_demangling.html deleted file mode 100644 index 84e40e33f..000000000 --- a/gcc-4.8.1/libstdc++-v3/doc/html/manual/ext_demangling.html +++ /dev/null @@ -1,73 +0,0 @@ -<?xml version="1.0" encoding="UTF-8" standalone="no"?> -<!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>Chapter 29. Demangling</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.77.1" /><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="ext_io.html" title="Chapter 28. Input and Output" /><link rel="next" href="ext_concurrency.html" title="Chapter 30. Concurrency" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 29. Demangling</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_io.html">Prev</a> </td><th width="60%" align="center">Part III. - Extensions - -</th><td width="20%" align="right"> <a accesskey="n" href="ext_concurrency.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.demangle"></a>Chapter 29. Demangling</h2></div></div></div><p> - Transforming C++ ABI identifiers (like RTTI symbols) into the - original C++ source identifiers is called - <span class="quote">“<span class="quote">demangling.</span>”</span> - </p><p> - If you have read the <a class="link" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01115.html" target="_top">source - documentation for <code class="code">namespace abi</code></a> then you are - aware of the cross-vendor C++ ABI in use by GCC. One of the - exposed functions is used for demangling, - <code class="code">abi::__cxa_demangle</code>. - </p><p> - In programs like <span class="command"><strong>c++filt</strong></span>, the linker, and other tools - have the ability to decode C++ ABI names, and now so can you. - </p><p> - (The function itself might use different demanglers, but that's the - whole point of abstract interfaces. If we change the implementation, - you won't notice.) - </p><p> - Probably the only times you'll be interested in demangling at runtime - are when you're seeing <code class="code">typeid</code> strings in RTTI, or when - you're handling the runtime-support exception classes. For example: - </p><pre class="programlisting"> -#include <exception> -#include <iostream> -#include <cxxabi.h> - -struct empty { }; - -template <typename T, int N> - struct bar { }; - - -int main() -{ - int status; - char *realname; - - // exception classes not in <stdexcept>, thrown by the implementation - // instead of the user - std::bad_exception e; - realname = abi::__cxa_demangle(e.what(), 0, 0, &status); - std::cout << e.what() << "\t=> " << realname << "\t: " << status << '\n'; - free(realname); - - - // typeid - bar<empty,17> u; - const std::type_info &ti = typeid(u); - - realname = abi::__cxa_demangle(ti.name(), 0, 0, &status); - std::cout << ti.name() << "\t=> " << realname << "\t: " << status << '\n'; - free(realname); - - return 0; -} - </pre><p> - This prints - </p><pre class="screen"> - <code class="computeroutput"> - St13bad_exception => std::bad_exception : 0 - 3barI5emptyLi17EE => bar<empty, 17> : 0 - </code> - </pre><p> - The demangler interface is described in the source documentation - linked to above. It is actually written in C, so you don't need to - be writing C++ in order to demangle C++. (That also means we have to - use crummy memory management facilities, so don't forget to free() - the returned char array.) - </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ext_io.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_concurrency.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 28. Input and Output </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 30. Concurrency</td></tr></table></div></body></html>
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