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Jonathan Wakely 544be2beb1 Remove Profile Mode, deprecated since GCC 7.1 
The Profile Mode extension is not used by anybody, nor maintained by
anybody. The containers do not support the full API specified in recent
standards, and so enabling Profile Mode is not source compatible with
much modern C++ code. The heuristics that would check the profile
information and make useful suggestions never materialized, so it isn't
useful.

It should be removed.

	Remove Profile Mode, deprecated since 7.1.0
	* doc/Makefile.am: Remove XML file for profile mode docs.
	* doc/Makefile.in: Regenerate.
	* doc/xml/authors.xml: Remove authors of profile mode docs.
	* doc/xml/manual/appendix_contributing.xml: Remove mention of profile
	mode.
	* doc/xml/manual/debug.xml: Likewise.
	* doc/xml/manual/evolution.xml: Document removal of profile mode.
	* doc/xml/manual/profile_mode.xml: Remove profile mode docs.
	* doc/xml/manual/spine.xml: Remove profile mode author credit.
	* doc/xml/manual/test.xml: Remove docs for dg-require-profile-mode
	directive.
	* doc/xml/manual/using.xml: Remove docs for profile mode headers and
	macro.
	* doc/html/*: Regenerate.
	* include/Makefile.am: Remove profile mode headers.
	* include/Makefile.in: Regenerate.
	* include/bits/c++config (std::__profile): Remove namespace.
	[_GLIBCXX_PROFILE]: Remove checks for macro.
	* include/profile/array: Remove.
	* include/profile/base.h: Remove.
	* include/profile/bitset: Remove.
	* include/profile/deque: Remove.
	* include/profile/forward_list: Remove.
	* include/profile/impl/profiler.h: Remove.
	* include/profile/impl/profiler_algos.h: Remove.
	* include/profile/impl/profiler_container_size.h: Remove.
	* include/profile/impl/profiler_hash_func.h: Remove.
	* include/profile/impl/profiler_hashtable_size.h: Remove.
	* include/profile/impl/profiler_list_to_slist.h: Remove.
	* include/profile/impl/profiler_list_to_vector.h: Remove.
	* include/profile/impl/profiler_map_to_unordered_map.h: Remove.
	* include/profile/impl/profiler_node.h: Remove.
	* include/profile/impl/profiler_state.h: Remove.
	* include/profile/impl/profiler_trace.h: Remove.
	* include/profile/impl/profiler_vector_size.h: Remove.
	* include/profile/impl/profiler_vector_to_list.h: Remove.
	* include/profile/iterator_tracker.h: Remove.
	* include/profile/list: Remove.
	* include/profile/map: Remove.
	* include/profile/map.h: Remove.
	* include/profile/multimap.h: Remove.
	* include/profile/multiset.h: Remove.
	* include/profile/ordered_base.h: Remove.
	* include/profile/set: Remove.
	* include/profile/set.h: Remove.
	* include/profile/unordered_base.h: Remove.
	* include/profile/unordered_map: Remove.
	* include/profile/unordered_set: Remove.
	* include/profile/vector: Remove.
	* scripts/run_doxygen: Do not process profile mode headers.
	* testsuite/23_containers/array/element_access/60497.cc: Don't use
	profile mode type.
	* testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc:
	Remove dg-skip-if for profile mode.
	* testsuite/23_containers/forward_list/capacity/1.cc: Remove
	preprocessor check for profile mode.
	* testsuite/23_containers/list/capacity/29134.cc: Likewise.
	* testsuite/23_containers/map/modifiers/extract.cc: Remove dg-skip-if
	for profile mode.
	* testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
	Likewise.
	* testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
	* testsuite/23_containers/multimap/modifiers/extract.cc: Likewise.
	* testsuite/23_containers/multiset/modifiers/extract.cc: Likewise.
	* testsuite/23_containers/set/modifiers/extract.cc: Likewise.
	* testsuite/23_containers/unordered_map/modifiers/extract.cc:
	Likewise.
	* testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
	Likewise.
	* testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
	Likewise.
	* testsuite/23_containers/unordered_set/modifiers/extract.cc:
	Likewise.
	* testsuite/23_containers/vector/bool/capacity/29134.cc: Remove
	preprocessor check for profile mode.
	* testsuite/23_containers/vector/bool/modifiers/insert/31370.cc:
	Likewise.
	* testsuite/23_containers/vector/modifiers/insert_vs_emplace.cc:
	Remove dg-skip-if for profile mode.
	* testsuite/25_algorithms/binary_search/partitioned.cc: Likewise.
	* testsuite/25_algorithms/equal_range/partitioned.cc: Likewise.
	* testsuite/25_algorithms/lexicographical_compare/71545.cc: Likewise.
	* testsuite/25_algorithms/lower_bound/partitioned.cc: Likewise.
	* testsuite/25_algorithms/upper_bound/partitioned.cc: Likewise.
	* testsuite/Makefile.am: Remove profile_flags variable and
	* testsuite/Makefile.am: Remove profile_flags variable and
	check-profile target.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/ext/profile/all.cc: Remove.
	* testsuite/ext/profile/mutex_extensions_neg.cc: Remove.
	* testsuite/ext/profile/profiler_algos.cc: Remove.
	* testsuite/ext/profile/replace_new.cc: Remove.
	* testsuite/ext/throw_allocator/deallocate_global.cc: Remove
	preprocessor check for profile mode.
	* testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
	* testsuite/lib/libstdc++.exp (check_v3_target_profile_mode): Remove.
	(check_v3_target_normal_mode): Do not check for profile mode macro.
	* testsuite/libstdc++-prettyprinters/80276.cc: Remove dg-skip-if for
	profile mode.
	* testsuite/libstdc++-prettyprinters/compat.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/debug.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/whatis2.cc: Likewise.

From-SVN: r271120
2019-05-13 11:50:21 +01:00

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<?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>Deprecated</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="ext_containers.html" title="Chapter 22. HP/SGI Extensions" /><link rel="prev" href="ext_containers.html" title="Chapter 22. HP/SGI Extensions" /><link rel="next" href="ext_utilities.html" title="Chapter 23. Utilities" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Deprecated</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_containers.html">Prev</a> </td><th width="60%" align="center">Chapter 22. HP/SGI Extensions</th><td width="20%" align="right"> <a accesskey="n" href="ext_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="manual.ext.containers.deprecated_sgi"></a>Deprecated</h2></div></div></div><p>
The SGI hashing classes <code class="classname">hash_set</code> and
<code class="classname">hash_set</code> have been deprecated by the
unordered_set, unordered_multiset, unordered_map,
unordered_multimap containers in TR1 and C++11, and
may be removed in future releases.
</p><p>The SGI headers</p><pre class="programlisting">
&lt;hash_map&gt;
&lt;hash_set&gt;
&lt;rope&gt;
&lt;slist&gt;
&lt;rb_tree&gt;
</pre><p>are all here;
<code class="filename">&lt;backwards/hash_map&gt;</code> and
<code class="filename">&lt;backwards/hash_set&gt;</code>
are deprecated but available as backwards-compatible extensions,
as discussed further below.
<code class="filename">&lt;ext/rope&gt;</code> is the SGI
specialization for large strings ("rope," "large strings," get it? Love
that geeky humor.)
<code class="filename">&lt;ext/slist&gt;</code> (superseded in
C++11 by <code class="filename">&lt;forward_list&gt;</code>)
is a singly-linked list, for when the doubly-linked <code class="code">list&lt;&gt;</code>
is too much space overhead, and
<code class="filename">&lt;ext/rb_tree&gt;</code> exposes the
red-black tree classes used in the implementation of the standard maps
and sets.
</p><p>Each of the associative containers map, multimap, set, and multiset
have a counterpart which uses a
<a class="link" href="https://web.archive.org/web/20171225062613/http://www.sgi.com/tech/stl/HashFunction.html" target="_top">hashing
function</a> to do the arranging, instead of a strict weak ordering
function. The classes take as one of their template parameters a
function object that will return the hash value; by default, an
instantiation of
<a class="link" href="https://web.archive.org/web/20171225062613/http://www.sgi.com/tech/stl/hash.html" target="_top">hash</a>.
You should specialize this functor for your class, or define your own,
before trying to use one of the hashing classes.
</p><p>The hashing classes support all the usual associative container
functions, as well as some extra constructors specifying the number
of buckets, etc.
</p><p>Why would you want to use a hashing class instead of the
<span class="quote">“<span class="quote">normal</span>”</span>implementations? Matt Austern writes:
</p><div class="blockquote"><blockquote class="blockquote"><p>
<span class="emphasis"><em>[W]ith a well chosen hash function, hash tables
generally provide much better average-case performance than
binary search trees, and much worse worst-case performance. So
if your implementation has hash_map, if you don't mind using
nonstandard components, and if you aren't scared about the
possibility of pathological cases, you'll probably get better
performance from hash_map.
</em></span>
</p></blockquote></div><p>
The deprecated hash tables are superseded by the standard unordered
associative containers defined in the ISO C++ 2011 standard in the
headers <code class="filename">&lt;unordered_map&gt;</code>
and <code class="filename">&lt;unordered_set&gt;</code>.
</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ext_containers.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ext_containers.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ext_utilities.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 22. HP/SGI Extensions </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 23. Utilities</td></tr></table></div></body></html>
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