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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libstdc++-v3/doc/html/manual/debug_mode.html | |
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Diffstat (limited to 'libstdc++-v3/doc/html/manual/debug_mode.html')
| -rw-r--r-- | libstdc++-v3/doc/html/manual/debug_mode.html | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libstdc++-v3/doc/html/manual/debug_mode.html b/libstdc++-v3/doc/html/manual/debug_mode.html new file mode 100644 index 000000000..f35960b53 --- /dev/null +++ b/libstdc++-v3/doc/html/manual/debug_mode.html @@ -0,0 +1,37 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Chapter 17. Debug Mode</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.76.1"/><meta name="keywords" content=" C++ , library , debug "/><meta name="keywords" content=" ISO C++ , library "/><link rel="home" href="../spine.html" title="The GNU C++ Library"/><link rel="up" href="extensions.html" title="Part III. Extensions"/><link rel="prev" href="ext_compile_checks.html" title="Chapter 16. Compile Time Checks"/><link rel="next" href="bk01pt03ch17s02.html" title="Semantics"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 17. Debug Mode</th></tr><tr><td align="left"><a accesskey="p" href="ext_compile_checks.html">Prev</a> </td><th width="60%" align="center">Part III. + Extensions + +</th><td align="right"> <a accesskey="n" href="bk01pt03ch17s02.html">Next</a></td></tr></table><hr/></div><div class="chapter" title="Chapter 17. Debug Mode"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.debug_mode"/>Chapter 17. Debug Mode</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="debug_mode.html#manual.ext.debug_mode.intro">Intro</a></span></dt><dt><span class="section"><a href="bk01pt03ch17s02.html">Semantics</a></span></dt><dt><span class="section"><a href="bk01pt03ch17s03.html">Using</a></span></dt><dd><dl><dt><span class="section"><a href="bk01pt03ch17s03.html#debug_mode.using.mode">Using the Debug Mode</a></span></dt><dt><span class="section"><a href="bk01pt03ch17s03.html#debug_mode.using.specific">Using a Specific Debug Container</a></span></dt></dl></dd><dt><span class="section"><a href="bk01pt03ch17s04.html">Design</a></span></dt><dd><dl><dt><span class="section"><a href="bk01pt03ch17s04.html#debug_mode.design.goals">Goals</a></span></dt><dt><span class="section"><a href="bk01pt03ch17s04.html#debug_mode.design.methods">Methods</a></span></dt><dt><span class="section"><a href="bk01pt03ch17s04.html#debug_mode.design.other">Other Implementations</a></span></dt></dl></dd></dl></div><div class="section" title="Intro"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.debug_mode.intro"/>Intro</h2></div></div></div><p> + By default, libstdc++ is built with efficiency in mind, and + therefore performs little or no error checking that is not + required by the C++ standard. This means that programs that + incorrectly use the C++ standard library will exhibit behavior + that is not portable and may not even be predictable, because they + tread into implementation-specific or undefined behavior. To + detect some of these errors before they can become problematic, + libstdc++ offers a debug mode that provides additional checking of + library facilities, and will report errors in the use of libstdc++ + as soon as they can be detected by emitting a description of the + problem to standard error and aborting the program. This debug + mode is available with GCC 3.4.0 and later versions. + </p><p> + The libstdc++ debug mode performs checking for many areas of the + C++ standard, but the focus is on checking interactions among + standard iterators, containers, and algorithms, including: + </p><div class="itemizedlist"><ul class="itemizedlist"><li class="listitem"><p><span class="emphasis"><em>Safe iterators</em></span>: Iterators keep track of the + container whose elements they reference, so errors such as + incrementing a past-the-end iterator or dereferencing an iterator + that points to a container that has been destructed are diagnosed + immediately.</p></li><li class="listitem"><p><span class="emphasis"><em>Algorithm preconditions</em></span>: Algorithms attempt to + validate their input parameters to detect errors as early as + possible. For instance, the <code class="code">set_intersection</code> + algorithm requires that its iterator + parameters <code class="code">first1</code> and <code class="code">last1</code> form a valid + iterator range, and that the sequence + [<code class="code">first1</code>, <code class="code">last1</code>) is sorted according to + the same predicate that was passed + to <code class="code">set_intersection</code>; the libstdc++ debug mode will + detect an error if the sequence is not sorted or was sorted by a + different predicate.</p></li></ul></div></div></div><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td align="left"><a accesskey="p" href="ext_compile_checks.html">Prev</a> </td><td align="center"><a accesskey="u" href="extensions.html">Up</a></td><td align="right"> <a accesskey="n" href="bk01pt03ch17s02.html">Next</a></td></tr><tr><td align="left" valign="top">Chapter 16. Compile Time Checks </td><td align="center"><a accesskey="h" href="../spine.html">Home</a></td><td align="right" valign="top"> Semantics</td></tr></table></div></body></html> |