std_cwctype.h: Include std_cwchar.h for wint_t.

2001-01-03  Benjamin Kosnik  <bkoz@redhat.com>

	* include/c_std/bits/std_cwctype.h: Include std_cwchar.h for wint_t.
	* testsuite/17_intro/header_cwctype.cc (main): New file.

	* src/Makefile.am (base_headers): Change.
	* include/bits/std_string.h: And here.
	* include/bits/string.tcc: Tweaks, move to...
	* include/bits/basic_string.tcc: ...Here.
	* src/string-inst.cc: Simplify, just instantiate the whole class,
	not member-by-member.

From-SVN: r38679

1 files changed, 0 insertions, 842 deletions

diff --git a/libstdc++-v3/include/bits/string.tcc b/libstdc++-v3/include/bits/string.tcc
deleted file mode 100644
index da43ae1..0000000
--- a/libstdc++-v3/include/bits/string.tcc
+++ /dev/null
@@ -1,842 +0,0 @@
-// Components for manipulating sequences of characters -*- C++ -*-
-
-// Copyright (C) 2000, 1999, 1998, 1997 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.
-
-//
-// ISO C++ 14882: 21  Strings library
-//
-
-// This file is included by <string>.  It is not meant to be included
-// separately.
-
-// Written by Jason Merrill based upon the specification by Takanori Adachi
-// in ANSI X3J16/94-0013R2.  Rewritten by Nathan Myers to ISO-14882.
-
-#ifndef _CPP_BITS_STRING_TCC
-#define _CPP_BITS_STRING_TCC 1
-
-namespace std
-{
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    const _CharT 
-    basic_string<_CharT, _Traits, _Alloc>::
-    _Rep::_S_terminal = _CharT();
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    const typename basic_string<_CharT, _Traits, _Alloc>::size_type 
-    basic_string<_CharT, _Traits, _Alloc>::
-    _Rep::_S_max_size = (((npos - sizeof(_Rep))/sizeof(_CharT)) - 1) / 4;
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    const typename basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::npos;
-
-  // Linker sets _S_empty_rep_storage to all 0s (one reference, empty string)
-  // at static init time (before static ctors are run).
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    typename basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::_S_empty_rep_storage[
-    (sizeof(_Rep) + sizeof(_CharT) + sizeof(size_type) - 1)/sizeof(size_type)];
-
-  // NB: This is the special case for Input Iterators, used in
-  // istreambuf_iterators, etc.
-  // Input Iterators have a cost structure very different from
-  // pointers, calling for a different coding style.
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    template<typename _InIter>
-      _CharT*
-      basic_string<_CharT, _Traits, _Alloc>::
-      _S_construct(_InIter __beg, _InIter __end, const _Alloc& __a,
-		   input_iterator_tag)
-      {
-	if (__beg == __end && __a == _Alloc())
-	  return _S_empty_rep()._M_refcopy();
-	// Avoid reallocation for common case.
-	_CharT __buf[100];
-	size_type __i = 0;
-	while (__beg != __end && __i < sizeof(__buf) / sizeof(_CharT))
-	  { 
-	    __buf[__i++] = *__beg; 
-	    ++__beg; 
-	  }
-	_Rep* __r = _Rep::_S_create(__i, __a);
-	traits_type::copy(__r->_M_refdata(), __buf, __i);
-	__r->_M_length = __i;
-	try {
-	  // NB: this loop looks precisely this way because
-	  // it avoids comparing __beg != __end any more
-	  // than strictly necessary; != might be expensive!
-	  for (;;)
-	    {
-	      _CharT* __p = __r->_M_refdata() + __r->_M_length;
-	      _CharT* __last = __r->_M_refdata() + __r->_M_capacity;
-	      for (;;)
-		{
-		  if (__beg == __end)
-		    {
-		      __r->_M_length = __p - __r->_M_refdata();
-		      *__p = _Rep::_S_terminal;       // grrr.
-		      return __r->_M_refdata();
-		    }
-		  if (__p == __last)
-		    break;
-		  *__p++ = *__beg; 
-		  ++__beg;
-		}
-	      // Allocate more space.
-	      size_type __len = __p - __r->_M_refdata();
-	      _Rep* __another = _Rep::_S_create(__len + 1, __a);
-	      traits_type::copy(__another->_M_refdata(), 
-				__r->_M_refdata(), __len);
-	      __r->_M_destroy(__a);
-	      __r = __another;
-	      __r->_M_length = __len;
-	    }
-	}
-	catch (...) {
-	    __r->_M_destroy(__a); 
-	    throw;
-	}
-	return 0;
-      }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    template <class _InIter>
-      _CharT*
-      basic_string<_CharT,_Traits,_Alloc>::
-      _S_construct(_InIter __beg, _InIter __end, const _Alloc& __a, 
-		   forward_iterator_tag)
-      {
-	size_type __dnew = static_cast<size_type>(distance(__beg, __end));
-
-	if (__beg == __end && __a == _Alloc())
-	  return _S_empty_rep()._M_refcopy();
-
-	// Check for out_of_range and length_error exceptions.
-	_Rep* __r = _Rep::_S_create(__dnew, __a);
-	try { 
-	  _S_copy_chars(__r->_M_refdata(), __beg, __end); 
-	}
-	catch (...) { 
-	  __r->_M_destroy(__a); 
-	  throw; 
-	}
-	__r->_M_length = __dnew;
-
-	__r->_M_refdata()[__dnew] = _Rep::_S_terminal;  // grrr.
-	return __r->_M_refdata();
-      }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    _CharT*
-    basic_string<_CharT,_Traits, _Alloc>::
-    _S_construct(size_type __n, _CharT __c, const _Alloc& __a)
-    {
-      if (__n == 0 && __a == _Alloc())
-	return _S_empty_rep()._M_refcopy();
-
-      // Check for out_of_range and length_error exceptions.
-      _Rep* __r = _Rep::_S_create(__n, __a);
-      try { 
-	if (__n) 
-	  traits_type::assign(__r->_M_refdata(), __n, __c); 
-      }
-      catch (...) { 
-	__r->_M_destroy(__a); 
-	throw; 
-      }
-      __r->_M_length = __n;
-      __r->_M_refdata()[__n] = _Rep::_S_terminal;  // grrr
-      return __r->_M_refdata();
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(const basic_string& __str)
-    : _M_dataplus(__str._M_rep()->_M_grab(_Alloc(), __str.get_allocator()),
-		 __str.get_allocator())
-    { }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(const _Alloc& __a)
-    : _M_dataplus(_S_construct(size_type(), _CharT(), __a), __a)
-    { }
- 
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(const basic_string& __str, size_type __pos, size_type __n)
-    : _M_dataplus(_S_construct(__str._M_check(__pos), 
-			       __str._M_fold(__pos, __n), _Alloc()), _Alloc())
-    { }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(const basic_string& __str, size_type __pos,
-		 size_type __n, const _Alloc& __a)
-    : _M_dataplus(_S_construct(__str._M_check(__pos), 
-			       __str._M_fold(__pos, __n), __a), __a)
-    { }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(const _CharT* __s, size_type __n, const _Alloc& __a)
-    : _M_dataplus(_S_construct(__s, __s + __n, __a), __a)
-    { }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(const _CharT* __s, const _Alloc& __a)
-    : _M_dataplus(_S_construct(__s, __s + traits_type::length(__s), __a), __a)
-    { }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(size_type __n, _CharT __c, const _Alloc& __a)
-    : _M_dataplus(_S_construct(__n, __c, __a), __a)
-    { }
- 
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    template<typename _InputIter>
-    basic_string<_CharT, _Traits, _Alloc>::
-    basic_string(_InputIter __beg, _InputIter __end, const _Alloc& __a)
-    : _M_dataplus(_S_construct(__beg, __end, __a), __a)
-    { }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>&
-    basic_string<_CharT, _Traits, _Alloc>::assign(const basic_string& __str)
-    {
-      if (_M_rep() != __str._M_rep())
-	{
-	  // XXX MT
-	  allocator_type __a = this->get_allocator();
-	  _CharT* __tmp = __str._M_rep()->_M_grab(__a, __str.get_allocator());
-	  _M_rep()->_M_dispose(__a);
-	  _M_data(__tmp);
-	}
-      return *this;
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    void
-    basic_string<_CharT, _Traits, _Alloc>::_Rep::
-    _M_destroy(const _Alloc& __a) throw ()
-    {
-      size_type __size = sizeof(_Rep) + (_M_capacity + 1) * sizeof(_CharT);
-      _Raw_bytes_alloc(__a).deallocate(reinterpret_cast<char*>(this), __size);
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    void
-    basic_string<_CharT, _Traits, _Alloc>::_M_leak_hard()
-    {
-      if (_M_rep()->_M_is_shared()) 
-	_M_mutate(0, 0, 0);
-      _M_rep()->_M_set_leaked();
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    void
-    basic_string<_CharT, _Traits, _Alloc>::
-    _M_mutate(size_type __pos, size_type __len1, size_type __len2)
-    {
-      size_type       __old_size = this->size();
-      const size_type __new_size = __old_size + __len2 - __len1;
-      const _CharT*        __src = _M_data()  + __pos + __len1;
-      const size_type __how_much = __old_size - __pos - __len1;
-      
-      if (_M_rep()->_M_is_shared() || __new_size > capacity())
-	{
-	  // Must reallocate.
-	  allocator_type __a = get_allocator();
-	  _Rep* __r = _Rep::_S_create(__new_size, __a);
-	  try {
-	    if (__pos)
-	      traits_type::copy(__r->_M_refdata(), _M_data(), __pos);
-	    if (__how_much)
-	      traits_type::copy(__r->_M_refdata() + __pos + __len2, 
-				__src, __how_much);
-	  }
-	  catch (...) { 
-	    __r->_M_dispose(get_allocator()); 
-	    throw; 
-	  }
-	  _M_rep()->_M_dispose(__a);
-	  _M_data(__r->_M_refdata());
-      }
-      else if (__how_much && __len1 != __len2)
-	{
-	  // Work in-place
-	  traits_type::move(_M_data() + __pos + __len2, __src, __how_much);
-	}
-      _M_rep()->_M_set_sharable();
-      _M_rep()->_M_length = __new_size;
-      _M_data()[__new_size] = _Rep::_S_terminal; // grrr. (per 21.3.4)
-    // You cannot leave those LWG people alone for a second.
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    void
-    basic_string<_CharT, _Traits, _Alloc>::reserve(size_type __res)
-    {
-      if (__res > this->capacity() || _M_rep()->_M_is_shared())
-        {
-	  __LENGTHERROR(__res > this->max_size());
-	  allocator_type __a = get_allocator();
-	  _CharT* __tmp = _M_rep()->_M_clone(__a, __res - this->size());
-	  _M_rep()->_M_dispose(__a);
-	  _M_data(__tmp);
-        }
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    void basic_string<_CharT, _Traits, _Alloc>::swap(basic_string& __s)
-    {
-      if (_M_rep()->_M_is_leaked()) 
-	_M_rep()->_M_set_sharable();
-      if (__s._M_rep()->_M_is_leaked()) 
-	__s._M_rep()->_M_set_sharable();
-      if (this->get_allocator() == __s.get_allocator())
-	{
-	  _CharT* __tmp = _M_data();
-	  _M_data(__s._M_data());
-	  __s._M_data(__tmp);
-	}
-      // The code below can usually be optimized away.
-      else 
-	{
-	  basic_string __tmp1(_M_ibegin(), _M_iend(), __s.get_allocator());
-	  basic_string __tmp2(__s._M_ibegin(), __s._M_iend(), 
-			      this->get_allocator());
-	  *this = __tmp2;
-	  __s = __tmp1;
-	}
-    }
-
-#ifdef _GLIBCPP_ALLOC_CONTROL
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    bool (*basic_string<_CharT, _Traits, _Alloc>::_Rep::_S_excess_slop) 
-    (size_t, size_t) = 
-    basic_string<_CharT, _Traits, _Alloc>::_Rep::_S_default_excess;
-#endif
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::_Rep*
-    basic_string<_CharT, _Traits, _Alloc>::_Rep::
-    _S_create(size_t __capacity, const _Alloc& __alloc)
-    {
-#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
-      // 83.  String::npos vs. string::max_size()
-      typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
-      __LENGTHERROR(__capacity > _S_max_size);
-#else
-      __LENGTHERROR(__capacity == npos);
-#endif
-
-      // NB: Need an array of char_type[__capacity], plus a
-      // terminating null char_type() element, plus enough for the
-      // _Rep data structure. Whew. Seemingly so needy, yet so elemental.
-      size_t __size = (__capacity + 1) * sizeof(_CharT) + sizeof(_Rep);
-      // NB: Might throw, but no worries about a leak, mate: _Rep()
-      // does not throw.
-      void* __place = _Raw_bytes_alloc(__alloc).allocate(__size);
-      _Rep *__p = new (__place) _Rep;
-      __p->_M_capacity = __capacity;
-      __p->_M_set_sharable();  // one reference
-      __p->_M_length = 0;
-      return __p;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    _CharT*
-    basic_string<_CharT, _Traits, _Alloc>::_Rep::
-    _M_clone(const _Alloc& __alloc, size_type __res)
-    {
-      _Rep* __r = _Rep::_S_create(_M_length + __res, __alloc);
-      if (_M_length)
-	{
-	  try { 
-	    traits_type::copy(__r->_M_refdata(), _M_refdata(), _M_length); 
-	  }
-	  catch (...)  { 
-	    __r->_M_destroy(__alloc); 
-	    throw; 
-	  }
-	}
-      __r->_M_length = _M_length;
-      return __r->_M_refdata();
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-  inline bool
-#ifdef _GLIBCPP_ALLOC_CONTROL
-    basic_string<_CharT, _Traits, _Alloc>::_Rep::
-    _S_default_excess(size_t __s, size_t __r)
-#else
-    basic_string<_CharT, _Traits, _Alloc>::_Rep::
-    _S_excess_slop(size_t __s, size_t __r)
-#endif
-    {
-      return 2 * (__s <= 16 ? 16 : __s) < __r;
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    void
-    basic_string<_CharT, _Traits, _Alloc>::resize(size_type __n, _CharT __c)
-    {
-      __LENGTHERROR(__n > max_size());
-      size_type __size = this->size();
-      if (__size < __n)
-	this->append(__n - __size, __c);
-      else if (__n < __size)
-	this->erase(__n);
-      // else nothing (in particular, avoid calling _M_mutate() unnecessarily.)
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    template<typename _InputIter>
-      basic_string<_CharT, _Traits, _Alloc>&
-      basic_string<_CharT, _Traits, _Alloc>::
-      _M_replace(iterator __i1, iterator __i2, _InputIter __k1, 
-		 _InputIter __k2, input_iterator_tag)
-      {
-	basic_string __s(__k1, __k2);
-	return this->replace(__i1, __i2, __s._M_ibegin(), __s._M_iend());
-      }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    template<typename _ForwardIter>
-      basic_string<_CharT, _Traits, _Alloc>&
-      basic_string<_CharT, _Traits, _Alloc>::
-      _M_replace(iterator __i1, iterator __i2, _ForwardIter __k1, 
-		 _ForwardIter __k2, forward_iterator_tag)
-      {
-	size_type __dold = __i2 - __i1;
-	size_type __dmax = this->max_size();
-	size_type __dnew = static_cast<size_type>(distance(__k1, __k2));
-
-	__LENGTHERROR(__dmax <= __dnew);
-	size_type __off = __i1 - _M_ibegin();
-	_M_mutate(__off, __dold, __dnew);
-	// Invalidated __i1, __i2
-	if (__dnew)
-	  _S_copy_chars(_M_data() + __off, __k1, __k2);
-	
-	return *this;
-      }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>&
-    basic_string<_CharT, _Traits, _Alloc>::
-    replace(size_type __pos1, size_type __n1, const basic_string& __str,
-	    size_type __pos2, size_type __n2)
-    {
-      return this->replace(_M_check(__pos1), _M_fold(__pos1, __n1),
-			   __str._M_check(__pos2), 
-			   __str._M_fold(__pos2, __n2));
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT,_Traits,_Alloc>&
-    basic_string<_CharT,_Traits,_Alloc>::
-    append(const basic_string& __str)
-    {
-      // Iff appending itself, string needs to pre-reserve the
-      // correct size so that _M_mutate does not clobber the
-      // iterators formed here.
-      size_type __size = __str.size();
-      size_type __len = __size + this->size();
-      if (__len > this->capacity())
-	this->reserve(__len);
-      return this->replace(_M_iend(), _M_iend(), __str._M_ibegin(),
-			   __str._M_iend());
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT,_Traits,_Alloc>&
-    basic_string<_CharT,_Traits,_Alloc>::
-    append(const basic_string& __str, size_type __pos, size_type __n)
-    {
-      // Iff appending itself, string needs to pre-reserve the
-      // correct size so that _M_mutate does not clobber the
-      // iterators formed here.
-      size_type __len = min(__str.size() - __pos, __n) + this->size();
-      if (__len > this->capacity())
-	this->reserve(__len);
-      return this->replace(_M_iend(), _M_iend(), __str._M_check(__pos),
-			   __str._M_fold(__pos, __n));
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT,_Traits,_Alloc>&
-    basic_string<_CharT,_Traits,_Alloc>::
-    append(const _CharT* __s, size_type __n)
-    {
-      size_type __len = __n + this->size();
-      if (__len > this->capacity())
-	this->reserve(__len);
-      return this->replace(_M_iend(), _M_iend(), __s, __s + __n);
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT,_Traits,_Alloc>&
-    basic_string<_CharT,_Traits,_Alloc>::
-    append(size_type __n, _CharT __c)
-    {
-      size_type __len = __n + this->size();
-      if (__len > this->capacity())
-	this->reserve(__len);
-       return this->replace(_M_iend(), _M_iend(), __n, __c);
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT,_Traits,_Alloc>
-    operator+(const _CharT* __lhs,
-             const basic_string<_CharT,_Traits,_Alloc>& __rhs)
-    {
-      typedef basic_string<_CharT,_Traits,_Alloc> __string_type;
-      typedef typename __string_type::size_type	  __size_type;
-      __size_type __len = _Traits::length(__lhs);
-      __string_type __str;
-      __str.reserve(__len + __rhs.size());
-      __str.append(__lhs, __lhs + __len);
-      __str.append(__rhs);
-      return __str;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT,_Traits,_Alloc>
-    operator+(_CharT __lhs, const basic_string<_CharT,_Traits,_Alloc>& __rhs)
-    {
-      typedef basic_string<_CharT,_Traits,_Alloc> __string_type;
-      typedef typename __string_type::size_type	  __size_type;
-      __string_type __str;
-      __size_type __len = __rhs.size();
-      __str.reserve(__len + 1);
-      __str.append(__string_type::size_type(1), __lhs);
-      __str.append(__rhs);
-      return __str;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>&
-    basic_string<_CharT, _Traits, _Alloc>::
-    replace(iterator __i1, iterator __i2, size_type __n2, _CharT __c)
-    {
-      size_type __n1 = __i2 - __i1;
-      size_type __off1 = __i1 - _M_ibegin();
-      __LENGTHERROR(max_size() - (this->size() - __n1) <= __n2);
-      _M_mutate (__off1, __n1, __n2);
-      // Invalidated __i1, __i2
-      if (__n2)
-	traits_type::assign(_M_data() + __off1, __n2, __c);
-      return *this;
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    copy(_CharT* __s, size_type __n, size_type __pos) const
-    {
-      __OUTOFRANGE(__pos > this->size());
-      
-      if (__n > this->size() - __pos)
-	__n = this->size() - __pos;
-      
-      traits_type::copy(__s, _M_data() + __pos, __n);
-      // 21.3.5.7 par 3: do not append null.  (good.)
-      return __n;
-    }
-
-  // String operations
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    const _CharT*
-    basic_string<_CharT, _Traits, _Alloc>::
-    _S_find(const _CharT* __beg, const _CharT* __end, _CharT __c)
-    {
-      return find_if(__beg, __end, _Char_traits_match<_CharT, _Traits>(__c));
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find(const _CharT* __s, size_type __pos, size_type __n) const
-    {
-      size_t __xpos = __pos;
-      const _CharT* __data = _M_data();
-      for (; __xpos + __n <= this->size(); ++__xpos)
-	if (traits_type::compare(__data + __xpos, __s, __n) == 0)
-	  return __xpos;
-      return npos;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find(_CharT __c, size_type __pos) const
-    {
-      size_type __size = this->size();
-      size_type __ret = npos;
-      if (__pos < __size)
-	{
-	  const _CharT* __data = _M_data();
-	  const _CharT* __end = __data + __size;
-	  const _CharT* __p = _S_find(__data + __pos, __end, __c);
-	  if (__p != __end)
-	    __ret = __p - __data;
-	}
-      return __ret;
-    }
-
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    rfind(const _CharT* __s, size_type __pos, size_type __n) const
-    {
-      size_type __size = this->size();
-      if (__n <= __size)
-	{
-	  __pos = std::min(__size - __n ,__pos);
-	  const _CharT* __data = _M_data();
-	  do 
-	    {
-	      if (traits_type::compare(__data + __pos, __s, __n) == 0)
-		return __pos;
-	    } 
-	  while (__pos-- > 0);
-	}
-      return npos;
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    rfind(_CharT __c, size_type __pos) const
-    {
-      size_type __size = this->size();
-      if (__size)
-	{
-	  size_t __xpos = __size - 1;
-	  if (__xpos > __pos)
-	    __xpos = __pos;
-      
-	  for (++__xpos; __xpos-- > 0; )
-	    if (traits_type::eq(_M_data()[__xpos], __c))
-	      return __xpos;
-	}
-      return npos;
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find_first_of(const _CharT* __s, size_type __pos, size_type __n) const
-    {
-      const _CharT* __end = __s + __n;
-      for (; __n && __pos < this->size(); ++__pos)
-	{
-	  const _CharT* __p = _S_find(__s, __end, _M_data()[__pos]);
-	  if (__p != __end)
-	    return __pos;
-	}
-      return npos;
-    }
- 
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find_last_of(const _CharT* __s, size_type __pos, size_type __n) const
-    {
-      size_type __size = this->size();
-      if (__size && __n)
-	{ 
-	  if (--__size > __pos) 
-	    __size = __pos;
-	  do
-	    {
-	      const _CharT* __p = _S_find(__s, __s + __n, _M_data()[__size]);
-	      if (__p  != __s + __n)
-		return __size;
-	    } 
-	  while (__size-- != 0);
-	}
-      return npos;
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find_first_not_of(const _CharT* __s, size_type __pos, size_type __n) const
-    {
-      size_t __xpos = __pos;
-      for (; __n && __xpos < this->size(); ++__xpos)
-	if (_S_find(__s, __s + __n, _M_data()[__xpos]) == __s + __n)
-	  return __xpos;
-      return npos;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find_first_not_of(_CharT __c, size_type __pos) const
-    {
-      size_t __xpos = __pos;
-      for (; __xpos < size(); ++__xpos)
-	if (!traits_type::eq(_M_data()[__xpos], __c))
-	  return __xpos;
-      return npos;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find_last_not_of(const _CharT* __s, size_type __pos, size_type __n) const
-    {
-      size_type __size = this->size();
-      if (__size && __n)
-	{ 
-	  if (--__size > __pos) 
-	    __size = __pos;
-	  do
-	    {
-	      if (_S_find(__s, __s + __n, _M_data()[__size]) == __s + __n)
-		return __size;
-	    } 
-	  while (__size--);
-	}
-      return npos;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    basic_string<_CharT, _Traits, _Alloc>::size_type
-    basic_string<_CharT, _Traits, _Alloc>::
-    find_last_not_of(_CharT __c, size_type __pos) const
-    {
-      size_type __size = this->size();
-      if (__size)
-	{ 
-	  if (--__size > __pos) 
-	    __size = __pos;
-	  do
-	    {
-	      if (!traits_type::eq(_M_data()[__size], __c))
-		return __size;
-	    } 
-	  while (__size--);
-	}
-      return npos;
-    }
-  
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    int
-    basic_string<_CharT, _Traits, _Alloc>::
-    compare(size_type __pos, size_type __n, const basic_string& __str) const
-    {
-      size_type __size = this->size();
-      size_type __osize = __str.size();
-      __OUTOFRANGE(__pos > __size);
-      
-      size_type __rsize= min(__size - __pos, __n);
-      size_type __len = min(__rsize, __osize);
-      int __r = traits_type::compare(_M_data() + __pos, __str.data(), __len);
-      if (!__r)
-	__r = __rsize - __osize;
-      return __r;
-    }
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    int
-    basic_string<_CharT, _Traits, _Alloc>::
-    compare(size_type __pos1, size_type __n1, const basic_string& __str,
-	    size_type __pos2, size_type __n2) const
-    {
-      size_type __size = this->size();
-      size_type __osize = __str.size();
-      __OUTOFRANGE(__pos1 > __size);
-      __OUTOFRANGE(__pos2 > __osize);
-      
-      size_type __rsize = min(__size - __pos1, __n1);
-      size_type __rosize = min(__osize - __pos2, __n2);
-      size_type __len = min(__rsize, __rosize);
-      int __r = traits_type::compare(_M_data() + __pos1, 
-				     __str.data() + __pos2, __len);
-      if (!__r)
-	__r = __rsize - __rosize;
-      return __r;
-    }
-
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    int
-    basic_string<_CharT, _Traits, _Alloc>::
-    compare(const _CharT* __s) const
-    {
-      size_type __size = this->size();
-      int __r = traits_type::compare(_M_data(), __s, __size);
-      if (!__r)
-	__r = __size - traits_type::length(__s);
-      return __r;
-    }
-
-
-  template<typename _CharT, typename _Traits, typename _Alloc>
-    int
-    basic_string <_CharT,_Traits,_Alloc>::
-    compare(size_type __pos, size_type __n1, const _CharT* __s, 
-	    size_type __n2) const
-    {
-      size_type __size = this->size();
-      __OUTOFRANGE(__pos > __size);
-      
-      size_type __osize = min(traits_type::length(__s), __n2);
-      size_type __rsize = min(__size - __pos, __n1);
-      size_type __len = min(__rsize, __osize);
-      int __r = traits_type::compare(_M_data() + __pos, __s, __len);
-      if (!__r)
-	__r = __rsize - __osize;
-      return __r;
-    }
-
-  template <class _CharT, class _Traits, class _Alloc>
-    void
-    _S_string_copy(const basic_string<_CharT, _Traits, _Alloc>& __str,
-		   _CharT* __buf, typename _Alloc::size_type __bufsiz)
-    {
-      typedef typename _Alloc::size_type size_type;
-      size_type __strsize = __str.size();
-      size_type __bytes = min(__strsize, __bufsiz - 1);
-      _Traits::copy(__buf, __str.data(), __bytes);
-      __buf[__bytes] = _CharT();
-    }
-
-} // std::
-
-#endif /* _CPP_BITS_STRING_TCC */