string.tcc

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    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;
    }
  
  // 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 _Alloc::size_type
    basic_string<_CharT, _Traits, _Alloc>::_S_empty_rep_storage[
    (sizeof(_Rep) + sizeof(_CharT) + sizeof(size_type) - 1)/sizeof(size_type)];

  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 __j1, 
		 _InputIter __j2, input_iterator_tag)
      {
	basic_string __s(__j1, __j2);
	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 __j1, 
		 _ForwardIter __j2, forward_iterator_tag)
      {
	size_type __dold = __i2 - __i1;
	size_type __dmax = this->max_size();
	size_type __dnew = static_cast<size_type>(distance(__j1, __j2));

	__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, __j1, __j2);
	
	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>::
    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
  // NB: This is specialized for the standard char_traits<char>
  // specialization to use the same optimizations as strchr.
  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));
    }

  // Specialization for char, definitions in src/string-inst.cc.
  template<>
    const char* 
    string::_S_find(const char* __beg, const char* __end, char __c);

  // Specialization for wchar_t.
  template<>
    const wchar_t* 
    wstring::_S_find(const wchar_t* __beg, const wchar_t* __end, wchar_t __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::eq(__data[__xpos], *__s)
	    && 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 __retval = 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)
	    __retval = __p - __data;
	}
      return __retval;
    }


  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)
	{
	  size_t __xpos = __size - __n;
	  if (__xpos > __pos)
	    __xpos = __pos;
      
	  for (++__xpos; __xpos-- > 0; )
	    if (traits_type::eq(_M_data()[__xpos], *__s)
		&& traits_type::compare(_M_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>::
    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 */

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// mode:c++
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