487 lines
12 KiB
C++
487 lines
12 KiB
C++
// -*- C++ -*-
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// Utility subroutines for the C++ library testsuite.
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//
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// Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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//
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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#include <testsuite_hooks.h>
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#ifdef _GLIBCXX_RES_LIMITS
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#include <unistd.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#endif
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#include <list>
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#include <string>
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#include <stdexcept>
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#include <clocale>
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#include <locale>
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#include <cxxabi.h>
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// If we have <sys/types.h>, <sys/ipc.h>, and <sys/sem.h>, then assume
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// that System V semaphores are available.
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#if defined(_GLIBCXX_HAVE_SYS_TYPES_H) \
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&& defined(_GLIBCXX_HAVE_SYS_IPC_H) \
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&& defined(_GLIBCXX_HAVE_SYS_SEM_H)
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#define _GLIBCXX_SYSV_SEM
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#endif
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#ifdef _GLIBCXX_SYSV_SEM
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/sem.h>
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#endif
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namespace __gnu_test
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{
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#ifdef _GLIBCXX_RES_LIMITS
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void
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set_memory_limits(float size)
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{
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struct rlimit r;
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// Cater to the absence of rlim_t.
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__typeof__ (r.rlim_cur) limit = (__typeof__ (r.rlim_cur))(size * 1048576);
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// Heap size, seems to be common.
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#if _GLIBCXX_HAVE_LIMIT_DATA
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getrlimit(RLIMIT_DATA, &r);
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r.rlim_cur = limit;
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setrlimit(RLIMIT_DATA, &r);
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#endif
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// Resident set size.
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#if _GLIBCXX_HAVE_LIMIT_RSS
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getrlimit(RLIMIT_RSS, &r);
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r.rlim_cur = limit;
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setrlimit(RLIMIT_RSS, &r);
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#endif
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// Mapped memory (brk + mmap).
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#if _GLIBCXX_HAVE_LIMIT_VMEM
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getrlimit(RLIMIT_VMEM, &r);
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r.rlim_cur = limit;
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setrlimit(RLIMIT_VMEM, &r);
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#endif
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// Virtual memory.
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// On HP-UX 11.23, a trivial C++ program that sets RLIMIT_AS to
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// anything less than 128MB cannot "malloc" even 1K of memory.
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// Therefore, we skip RLIMIT_AS on HP-UX.
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#if _GLIBCXX_HAVE_LIMIT_AS && !defined(__hpux__)
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getrlimit(RLIMIT_AS, &r);
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r.rlim_cur = limit;
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setrlimit(RLIMIT_AS, &r);
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#endif
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}
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#else
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void
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set_memory_limits(float) { }
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#endif
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#ifdef _GLIBCXX_RES_LIMITS
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void
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set_file_limit(unsigned long size)
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{
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#if _GLIBCXX_HAVE_LIMIT_FSIZE
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struct rlimit r;
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// Cater to the absence of rlim_t.
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__typeof__ (r.rlim_cur) limit = (__typeof__ (r.rlim_cur))(size);
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getrlimit(RLIMIT_FSIZE, &r);
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r.rlim_cur = limit;
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setrlimit(RLIMIT_FSIZE, &r);
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#endif
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}
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#else
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void
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set_file_limit(unsigned long) { }
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#endif
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void
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verify_demangle(const char* mangled, const char* wanted)
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{
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int status = 0;
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const char* s = abi::__cxa_demangle(mangled, 0, 0, &status);
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if (!s)
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{
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switch (status)
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{
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case 0:
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s = "error code = 0: success";
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break;
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case -1:
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s = "error code = -1: memory allocation failure";
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break;
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case -2:
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s = "error code = -2: invalid mangled name";
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break;
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case -3:
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s = "error code = -3: invalid arguments";
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break;
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default:
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s = "error code unknown - who knows what happened";
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}
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}
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std::string w(wanted);
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if (w != s)
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std::__throw_runtime_error(s);
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}
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void
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run_tests_wrapped_locale(const char* name, const func_callback& l)
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{
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using namespace std;
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bool test = true;
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// Set the global locale.
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locale loc_name = try_named_locale(name);
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locale orig = locale::global(loc_name);
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const char* res = setlocale(LC_ALL, name);
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if (res != NULL)
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{
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string preLC_ALL = res;
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const func_callback::test_type* tests = l.tests();
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for (int i = 0; i < l.size(); ++i)
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(*tests[i])();
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string postLC_ALL= setlocale(LC_ALL, NULL);
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VERIFY( preLC_ALL == postLC_ALL );
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}
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else
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{
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string s("LC_ALL for ");
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s += name;
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__throw_runtime_error(s.c_str());
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}
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}
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void
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run_tests_wrapped_env(const char* name, const char* env,
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const func_callback& l)
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{
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using namespace std;
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bool test = true;
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#ifdef _GLIBCXX_HAVE_SETENV
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// Set the global locale.
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locale loc_name = try_named_locale(name);
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locale orig = locale::global(loc_name);
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// Set environment variable env to value in name.
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const char* oldENV = getenv(env);
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if (!setenv(env, name, 1))
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{
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const func_callback::test_type* tests = l.tests();
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for (int i = 0; i < l.size(); ++i)
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(*tests[i])();
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setenv(env, oldENV ? oldENV : "", 1);
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}
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else
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{
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string s(env);
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s += string(" to ");
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s += string(name);
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__throw_runtime_error(s.c_str());
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}
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#endif
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}
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std::locale
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try_named_locale(const char* name)
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{
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try
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{
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return std::locale(name);
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}
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#ifdef __EXCEPTIONS
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catch (std::runtime_error& ex)
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{
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// Thrown by generic and gnu implemenation if named locale fails.
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if (std::strstr(ex.what(), "name not valid"))
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exit(0);
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else
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throw;
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}
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#endif
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}
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int
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try_mkfifo (const char* filename, mode_t mode)
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{
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#if defined (_NEWLIB_VERSION) || defined (__MINGW32_VERSION)
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/* Newlib and MinGW32 do not have mkfifo. */
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exit(0);
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#else
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return mkfifo(filename, mode);
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#endif
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}
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counter::size_type counter::count = 0;
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unsigned int copy_constructor::count_ = 0;
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unsigned int copy_constructor::throw_on_ = 0;
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unsigned int assignment_operator::count_ = 0;
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unsigned int assignment_operator::throw_on_ = 0;
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unsigned int destructor::_M_count = 0;
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int copy_tracker::next_id_ = 0;
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#ifdef _GLIBCXX_SYSV_SEM
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// This union is not declared in system headers. Instead, it must
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// be defined by user programs.
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union semun
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{
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int val;
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struct semid_ds *buf;
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unsigned short *array;
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};
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#endif
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semaphore::semaphore()
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{
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#ifdef _GLIBCXX_SYSV_SEM
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// Remeber the PID for the process that created the semaphore set
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// so that only one process will destroy the set.
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pid_ = getpid();
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// GLIBC does not define SEM_R and SEM_A.
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#ifndef SEM_R
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#define SEM_R 0400
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#endif
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#ifndef SEM_A
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#define SEM_A 0200
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#endif
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// Get a semaphore set with one semaphore.
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sem_set_ = semget(IPC_PRIVATE, 1, SEM_R | SEM_A);
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if (sem_set_ == -1)
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std::__throw_runtime_error("could not obtain semaphore set");
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// Initialize the semaphore.
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union semun val;
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val.val = 0;
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if (semctl(sem_set_, 0, SETVAL, val) == -1)
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std::__throw_runtime_error("could not initialize semaphore");
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#else
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// There are no semaphores on this system. We have no way to mark
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// a test as "unsupported" at runtime, so we just exit, pretending
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// that the test passed.
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exit(0);
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#endif
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}
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semaphore::~semaphore()
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{
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#ifdef _GLIBCXX_SYSV_SEM
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union semun val;
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// Destroy the semaphore set only in the process that created it.
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if (pid_ == getpid())
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semctl(sem_set_, 0, IPC_RMID, val);
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#endif
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}
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void
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semaphore::signal()
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{
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#ifdef _GLIBCXX_SYSV_SEM
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struct sembuf op[1] =
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{
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{ 0, 1, 0 }
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};
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if (semop(sem_set_, op, 1) == -1)
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std::__throw_runtime_error("could not signal semaphore");
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#endif
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}
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void
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semaphore::wait()
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{
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#ifdef _GLIBCXX_SYSV_SEM
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struct sembuf op[1] =
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{
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{ 0, -1, SEM_UNDO }
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};
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if (semop(sem_set_, op, 1) == -1)
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std::__throw_runtime_error("could not wait for semaphore");
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#endif
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}
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}; // namespace __gnu_test
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namespace std
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{
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// Member specializations for the existing facet classes.
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// NB: This isn't especially portable. Perhaps a better way would be
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// to just specialize all of numpunct and ctype.
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using __gnu_test::int_type;
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using __gnu_test::value_type;
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using __gnu_test::pod_type;
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template<>
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bool
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ctype<pod_type>::
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do_is(mask, char_type) const { return true; }
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template<>
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const pod_type*
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ctype<pod_type>::
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do_is(const char_type* __lo, const char_type*, mask*) const
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{ return __lo; }
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template<>
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const pod_type*
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ctype<pod_type>::
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do_scan_is(mask, const char_type* __lo, const char_type*) const
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{ return __lo; }
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template<>
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const pod_type*
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ctype<pod_type>::
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do_scan_not(mask, const char_type* __lo, const char_type*) const
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{ return __lo; }
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template<>
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pod_type
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ctype<pod_type>::
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do_toupper(char_type __c) const
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{ return __c; }
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template<>
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const pod_type*
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ctype<pod_type>::
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do_toupper(char_type*, const char_type* __hi) const
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{ return __hi; }
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template<>
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pod_type
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ctype<pod_type>::
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do_tolower(char_type __c) const
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{ return __c; }
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template<>
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const pod_type*
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ctype<pod_type>::
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do_tolower(char_type*, const char_type* __hi) const
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{ return __hi; }
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template<>
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pod_type
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ctype<pod_type>::
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do_widen(char __c) const
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{
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char_type ret = { value_type(__c) };
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return ret;
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}
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template<>
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const char*
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ctype<pod_type>::
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do_widen(const char* __lo, const char* __hi, char_type* __dest) const
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{
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while (__lo < __hi)
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{
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*__dest = this->do_widen(*__lo);
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++__lo;
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++__dest;
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}
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return __hi;
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}
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template<>
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char
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ctype<pod_type>::
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do_narrow(char_type __wc, char) const
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{ return static_cast<char>(__wc.value); }
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template<>
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const pod_type*
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ctype<pod_type>::
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do_narrow(const pod_type* __lo, const pod_type* __hi,
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char, char* __dest) const
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{
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while (__lo < __hi)
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{
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*__dest = this->do_narrow(*__lo, char());
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++__lo;
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++__dest;
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}
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return __hi;
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}
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template<>
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ctype<pod_type>::~ctype() { }
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template<>
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void
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numpunct<pod_type>::_M_initialize_numpunct(__c_locale)
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{
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if (!_M_data)
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_M_data = new __numpunct_cache<pod_type>;
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_M_data->_M_grouping = "";
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_M_data->_M_use_grouping = false;
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_M_data->_M_decimal_point.value = value_type('.');
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_M_data->_M_thousands_sep.value = value_type(',');
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for (size_t i = 0; i < __num_base::_S_oend; ++i)
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{
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value_type v = __num_base::_S_atoms_out[i];
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_M_data->_M_atoms_out[i].value = v;
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}
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_M_data->_M_atoms_out[__num_base::_S_oend] = pod_type();
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for (size_t j = 0; j < __num_base::_S_iend; ++j)
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_M_data->_M_atoms_in[j].value = value_type(__num_base::_S_atoms_in[j]);
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_M_data->_M_atoms_in[__num_base::_S_iend] = pod_type();
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// "true"
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pod_type* __truename = new pod_type[4 + 1];
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__truename[0].value = value_type('t');
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__truename[1].value = value_type('r');
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__truename[2].value = value_type('u');
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__truename[3].value = value_type('e');
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__truename[4] = pod_type();
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_M_data->_M_truename = __truename;
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// "false"
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pod_type* __falsename = new pod_type[5 + 1];
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__falsename[0].value = value_type('f');
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__falsename[1].value = value_type('a');
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__falsename[2].value = value_type('l');
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__falsename[3].value = value_type('s');
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__falsename[4].value = value_type('e');
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__falsename[5] = pod_type();
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_M_data->_M_falsename = __falsename;
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}
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template<>
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numpunct<pod_type>::~numpunct()
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{ delete _M_data; }
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} // namespace std
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