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re PR libstdc++/14078 (Manipulators are slow) 

2004-02-10  Paolo Carlini  <pcarlini@suse.de>
	    Petur Runolfsson  <peturr02@ru.is>

	PR libstdc++/14078
	* include/std/std_istream.h (operator>>(__istream_type& (*)
	(__istream_type&)), operator>>(__ios_type& (*)(__ios_type&)),
	operator>>(ios_base& (*)(ios_base&))): Declare inline.
	* include/std/std_ostream.h (operator<<(__ostream_type& (*)
	(__ostream_type&)), operator<<(__ios_type& (*)(__ios_type&)),
	operator<<(ios_base& (*) (ios_base&))): Likewise.
	* testsuite/performance/27_io/fmtflags_manipulators.cc: New.

Co-Authored-By: Petur Runolfsson <peturr02@ru.is>

From-SVN: r77650
This commit is contained in:
Paolo Carlini 2004-02-11 12:08:23 +00:00 committed by Paolo Carlini
parent ed045bef20
commit a2af66c186
4 changed files with 87 additions and 6 deletions
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12
libstdc++-v3/ChangeLog
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@ -1,3 +1,15 @@
2004-02-11 Paolo Carlini <pcarlini@suse.de>
Petur Runolfsson <peturr02@ru.is>
PR libstdc++/14078
* include/std/std_istream.h (operator>>(__istream_type& (*)
(__istream_type&)), operator>>(__ios_type& (*)(__ios_type&)),
operator>>(ios_base& (*)(ios_base&))): Declare inline.
* include/std/std_ostream.h (operator<<(__ostream_type& (*)
(__ostream_type&)), operator<<(__ios_type& (*)(__ios_type&)),
operator<<(ios_base& (*) (ios_base&))): Likewise.
* testsuite/performance/27_io/fmtflags_manipulators.cc: New.
2004-02-10 Loren J. Rittle <ljrittle@acm.org>
PR libstdc++/14098

6
libstdc++-v3/include/std/std_istream.h
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@ -128,13 +128,13 @@ namespace std
* functions in constructs like "std::cin >> std::ws". For more
* information, see the iomanip header.
*/
__istream_type&
inline __istream_type&
operator>>(__istream_type& (*__pf)(__istream_type&));
__istream_type&
inline __istream_type&
operator>>(__ios_type& (*__pf)(__ios_type&));
__istream_type&
inline __istream_type&
operator>>(ios_base& (*__pf)(ios_base&));
//@}

6
libstdc++-v3/include/std/std_ostream.h
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@ -127,13 +127,13 @@ namespace std
* functions in constructs like "std::cout << std::endl". For more
* information, see the iomanip header.
*/
__ostream_type&
inline __ostream_type&
operator<<(__ostream_type& (*__pf)(__ostream_type&));
__ostream_type&
inline __ostream_type&
operator<<(__ios_type& (*__pf)(__ios_type&));
__ostream_type&
inline __ostream_type&
operator<<(ios_base& (*__pf) (ios_base&));
//@}

69
libstdc++-v3/testsuite/performance/27_io/fmtflags_manipulators.cc Normal file
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@ -0,0 +1,69 @@
// Copyright (C) 2004 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.
#include <cstdlib>
#include <sstream>
#include <testsuite_performance.h>
// libstdc++/14078
int main(int argc, char** argv)
{
using namespace std;
using namespace __gnu_test;
time_counter time;
resource_counter resource;
int iters = 50000000;
if (argc > 1)
iters = atoi(argv[1]);
ostringstream os_s, os_m;
// setf
start_counters(time, resource);
for (int i = 0; i < iters; ++i)
{
os_s.setf(ios_base::uppercase);
os_s.unsetf(ios_base::uppercase);
}
stop_counters(time, resource);
report_performance(__FILE__, "setf", time, resource);
clear_counters(time, resource);
// manipulator
start_counters(time, resource);
for (int i = 0; i < iters; ++i)
{
os_m << uppercase;
os_m << nouppercase;
}
stop_counters(time, resource);
report_performance(__FILE__, "manipulator", time, resource);
return 0;
}