gcc/libstdc++-v3/include/profile/impl/profiler_algos.h
Silvius Rus 1f0622b42d re PR libstdc++/43259 (ext/profile/all.cc fails on Solaris)
2010-05-11  Silvius Rus  <silvius.rus@gmail.com>

	PR libstdc++/43259
	* include/profile/impl/profiler_algos.h: New.
	* include/Makefile.am: Add.
	* include/Makefile.in: Regenerate.
	* include/profile/impl/profiler.h
	(_GLIBCXX_PROFILE_DEFINE_UNINIT_DATA): Add.
	* include/profile/impl/profiler_trace.h
	(__mutex_t, __lock, __unlock): Remove.
	(__lock_object_table, __lock_stack_table): Remove. Replace uses with
	calls to __gnu_cxx::__mutex::lock.
	(__unlock_object_table, __unlock_stack_table): Remove. Replace uses
	with calls to __gnu_cxx::__mutex::unlock.
	(__warn, __cost_factor_writer, __cost_factor_setter): Add.
	* testsuite/ext/profile/profiler_algos.cc: New.

From-SVN: r159268
2010-05-11 10:22:18 +00:00

119 lines
3.8 KiB
C++

// -*- C++ -*-
//
// Copyright (C) 2010 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the terms
// of the GNU General Public License as published by the Free Software
// Foundation; either version 2, or (at your option) any later
// version.
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this library; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.
// As a special exception, you may use this file as part of a free
// software library without restriction. Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to
// produce an executable, this file does not by itself cause the
// resulting executable to be covered by the GNU General Public
// License. This exception does not however invalidate any other
// reasons why the executable file might be covered by the GNU General
// Public License.
/** @file profile/impl/profiler_algos.h
* @brief Algorithms used by the profile extension.
*
* This file is needed to avoid including <algorithm> or <bits/stl_algo.h>.
* Including those files would result in recursive includes.
* These implementations are oversimplified. In general, efficiency may be
* sacrificed to minimize maintenance overhead.
*/
#ifndef _GLIBCXX_PROFILE_PROFILER_ALGOS_H
#define _GLIBCXX_PROFILE_PROFILER_ALGOS_H 1
namespace __gnu_profile
{
/* Helper for __top_n. Insert in sorted vector, but not beyond Nth elem. */
template<typename _Container>
void
__insert_top_n(_Container& __output,
const typename _Container::value_type& __value,
typename _Container::size_type __n)
{
typename _Container::iterator __it = __output.begin();
typename _Container::size_type __count = 0;
// Skip up to N - 1 elements larger than VALUE.
// XXX: Could do binary search for random iterators.
while (true)
{
if (__count >= __n)
// VALUE is not in top N.
return;
if (__it == __output.end())
break;
if (*__it < __value)
break;
++__it;
++__count;
}
__output.insert(__it, __value);
}
/* Copy the top N elements in INPUT, sorted in reverse order, to OUTPUT. */
template<typename _Container>
void
__top_n(const _Container& __input, _Container& __output,
typename _Container::size_type __n)
{
__output.clear();
typename _Container::const_iterator __it;
for (__it = __input.begin(); __it != __input.end(); ++__it)
__insert_top_n(__output, *__it, __n);
}
/* Simplified clone of std::for_each. */
template<typename _InputIterator, typename _Function>
_Function
__for_each(_InputIterator __first, _InputIterator __last, _Function __f)
{
for (; __first != __last; ++__first)
__f(*__first);
return __f;
}
/* Simplified clone of std::remove. */
template<typename _ForwardIterator, typename _Tp>
_ForwardIterator
__remove(_ForwardIterator __first, _ForwardIterator __last,
const _Tp& __value)
{
if(__first == __last)
return __first;
_ForwardIterator __result = __first;
++__first;
for(; __first != __last; ++__first)
if(!(*__first == __value))
{
*__result = *__first;
++__result;
}
return __result;
}
} // namespace __gnu_profile
#endif /* _GLIBCXX_PROFILE_PROFILER_ALGOS_H */