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diff --git a/gcc-4.8.1/libstdc++-v3/doc/html/manual/concept_checking.html b/gcc-4.8.1/libstdc++-v3/doc/html/manual/concept_checking.html deleted file mode 100644 index e115a5e19..000000000 --- a/gcc-4.8.1/libstdc++-v3/doc/html/manual/concept_checking.html +++ /dev/null @@ -1,49 +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>Concept Checking</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="diagnostics.html" title="Chapter 5. Diagnostics" /><link rel="prev" href="diagnostics.html" title="Chapter 5. Diagnostics" /><link rel="next" href="utilities.html" title="Chapter 6. Utilities" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Concept Checking</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="diagnostics.html">Prev</a> </td><th width="60%" align="center">Chapter 5. - Diagnostics - -</th><td width="20%" align="right"> <a accesskey="n" href="utilities.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.diagnostics.concept_checking"></a>Concept Checking</h2></div></div></div><p> - In 1999, SGI added <span class="quote">“<span class="quote">concept checkers</span>”</span> to their - implementation of the STL: code which checked the template - parameters of instantiated pieces of the STL, in order to insure - that the parameters being used met the requirements of the - standard. For example, the Standard requires that types passed as - template parameters to <code class="classname">vector</code> be - "Assignable" (which means what you think it means). The - checking was done during compilation, and none of the code was - executed at runtime. - </p><p> - Unfortunately, the size of the compiler files grew significantly - as a result. The checking code itself was cumbersome. And bugs - were found in it on more than one occasion. - </p><p> - The primary author of the checking code, Jeremy Siek, had already - started work on a replacement implementation. The new code was - formally reviewed and accepted into - <a class="link" href="http://www.boost.org/libs/concept_check/concept_check.htm" target="_top">the - Boost libraries</a>, and we are pleased to incorporate it into the - GNU C++ library. - </p><p> - The new version imposes a much smaller space overhead on the generated - object file. The checks are also cleaner and easier to read and - understand. - </p><p> - They are off by default for all versions of GCC. - They can be enabled at configure time with - <a class="link" href="configure.html" title="Configure"><code class="literal">--enable-concept-checks</code></a>. - You can enable them on a per-translation-unit basis with - <code class="literal">-D_GLIBCXX_CONCEPT_CHECKS</code>. - </p><p> - Please note that the checks are based on the requirements in the original - C++ standard, some of which have changed in the new C++11 revision. - Additionally, some correct code might be rejected by the concept checks, - for example template argument types may need to be complete when used in - a template definition, rather than at the point of instantiation. - There are no plans to address these shortcomings. - </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="diagnostics.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="diagnostics.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="utilities.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 5. - Diagnostics - - </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 6. - Utilities - -</td></tr></table></div></body></html>
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