basic_string.h

openRisc2000编译链接器等,用于i386 cygwin

	{
	  typedef typename _Is_integer<_InIterator>::_Integral _Integral;
	  return _S_construct_aux(__beg, __end, __a, _Integral());
        }

      // For Input Iterators, used in istreambuf_iterators, etc.
      template<class _InIterator>
        static _CharT*
         _S_construct(_InIterator __beg, _InIterator __end, const _Alloc& __a,
		      input_iterator_tag);

      // For forward_iterators up to random_access_iterators, used for
      // string::iterator, _CharT*, etc.
      template<class _FwdIterator>
        static _CharT*
        _S_construct(_FwdIterator __beg, _FwdIterator __end, const _Alloc& __a,
		     forward_iterator_tag);

      static _CharT*
      _S_construct(size_type __req, _CharT __c, const _Alloc& __a);

    public:

      /**
       *  @brief  Copy substring into C string.
       *  @param s  C string to copy value into.
       *  @param n  Number of characters to copy.
       *  @param pos  Index of first character to copy.
       *  @return  Number of characters actually copied
       *  @throw  std::out_of_range  If pos > size().
       *
       *  Copies up to @a n characters starting at @a pos into the C string @a
       *  s.  If @a pos is greater than size(), out_of_range is thrown.
      */
      size_type
      copy(_CharT* __s, size_type __n, size_type __pos = 0) const;

      /**
       *  @brief  Swap contents with another string.
       *  @param s  String to swap with.
       *
       *  Exchanges the contents of this string with that of @a s in constant
       *  time.
      */
      void
      swap(basic_string& __s);

      // String operations:
      /**
       *  @brief  Return const pointer to null-terminated contents.
       *
       *  This is a handle to internal data.  Do not modify or dire things may
       *  happen.
      */
      const _CharT*
      c_str() const { return _M_data(); }

      /**
       *  @brief  Return const pointer to contents.
       *
       *  This is a handle to internal data.  Do not modify or dire things may
       *  happen.
      */
      const _CharT*
      data() const { return _M_data(); }

      /**
       *  @brief  Return copy of allocator used to construct this string.
      */
      allocator_type
      get_allocator() const { return _M_dataplus; }

      /**
       *  @brief  Find position of a C substring.
       *  @param s  C string to locate.
       *  @param pos  Index of character to search from.
       *  @param n  Number of characters from @a s to search for.
       *  @return  Index of start of first occurrence.
       *
       *  Starting from @a pos, searches forward for the first @a n characters
       *  in @a s within this string.  If found, returns the index where it
       *  begins.  If not found, returns npos.
      */
      size_type
      find(const _CharT* __s, size_type __pos, size_type __n) const;

      /**
       *  @brief  Find position of a string.
       *  @param str  String to locate.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of start of first occurrence.
       *
       *  Starting from @a pos, searches forward for value of @a str within
       *  this string.  If found, returns the index where it begins.  If not
       *  found, returns npos.
      */
      size_type
      find(const basic_string& __str, size_type __pos = 0) const
      { return this->find(__str.data(), __pos, __str.size()); }

      /**
       *  @brief  Find position of a C string.
       *  @param s  C string to locate.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of start of first occurrence.
       *
       *  Starting from @a pos, searches forward for the value of @a s within
       *  this string.  If found, returns the index where it begins.  If not
       *  found, returns npos.
      */
      size_type
      find(const _CharT* __s, size_type __pos = 0) const
      {
	__glibcxx_requires_string(__s);
	return this->find(__s, __pos, traits_type::length(__s));
      }

      /**
       *  @brief  Find position of a character.
       *  @param c  Character to locate.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for @a c within this string.
       *  If found, returns the index where it was found.  If not found,
       *  returns npos.
      */
      size_type
      find(_CharT __c, size_type __pos = 0) const;

      /**
       *  @brief  Find last position of a string.
       *  @param str  String to locate.
       *  @param pos  Index of character to search back from (default end).
       *  @return  Index of start of last occurrence.
       *
       *  Starting from @a pos, searches backward for value of @a str within
       *  this string.  If found, returns the index where it begins.  If not
       *  found, returns npos.
      */
      size_type
      rfind(const basic_string& __str, size_type __pos = npos) const
      { return this->rfind(__str.data(), __pos, __str.size()); }

      /**
       *  @brief  Find last position of a C substring.
       *  @param s  C string to locate.
       *  @param pos  Index of character to search back from.
       *  @param n  Number of characters from s to search for.
       *  @return  Index of start of last occurrence.
       *
       *  Starting from @a pos, searches backward for the first @a n
       *  characters in @a s within this string.  If found, returns the index
       *  where it begins.  If not found, returns npos.
      */
      size_type
      rfind(const _CharT* __s, size_type __pos, size_type __n) const;

      /**
       *  @brief  Find last position of a C string.
       *  @param s  C string to locate.
       *  @param pos  Index of character to start search at (default 0).
       *  @return  Index of start of  last occurrence.
       *
       *  Starting from @a pos, searches backward for the value of @a s within
       *  this string.  If found, returns the index where it begins.  If not
       *  found, returns npos.
      */
      size_type
      rfind(const _CharT* __s, size_type __pos = npos) const
      {
	__glibcxx_requires_string(__s);
	return this->rfind(__s, __pos, traits_type::length(__s));
      }

      /**
       *  @brief  Find last position of a character.
       *  @param c  Character to locate.
       *  @param pos  Index of character to search back from (default 0).
       *  @return  Index of last occurrence.
       *
       *  Starting from @a pos, searches backward for @a c within this string.
       *  If found, returns the index where it was found.  If not found,
       *  returns npos.
      */
      size_type
      rfind(_CharT __c, size_type __pos = npos) const;

      /**
       *  @brief  Find position of a character of string.
       *  @param str  String containing characters to locate.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for one of the characters of
       *  @a str within this string.  If found, returns the index where it was
       *  found.  If not found, returns npos.
      */
      size_type
      find_first_of(const basic_string& __str, size_type __pos = 0) const
      { return this->find_first_of(__str.data(), __pos, __str.size()); }

      /**
       *  @brief  Find position of a character of C substring.
       *  @param s  String containing characters to locate.
       *  @param pos  Index of character to search from (default 0).
       *  @param n  Number of characters from s to search for.
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for one of the first @a n
       *  characters of @a s within this string.  If found, returns the index
       *  where it was found.  If not found, returns npos.
      */
      size_type
      find_first_of(const _CharT* __s, size_type __pos, size_type __n) const;

      /**
       *  @brief  Find position of a character of C string.
       *  @param s  String containing characters to locate.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for one of the characters of
       *  @a s within this string.  If found, returns the index where it was
       *  found.  If not found, returns npos.
      */
      size_type
      find_first_of(const _CharT* __s, size_type __pos = 0) const
      {
	__glibcxx_requires_string(__s);
	return this->find_first_of(__s, __pos, traits_type::length(__s));
      }

      /**
       *  @brief  Find position of a character.
       *  @param c  Character to locate.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for the character @a c within
       *  this string.  If found, returns the index where it was found.  If
       *  not found, returns npos.
       *
       *  Note: equivalent to find(c, pos).
      */
      size_type
      find_first_of(_CharT __c, size_type __pos = 0) const
      { return this->find(__c, __pos); }

      /**
       *  @brief  Find last position of a character of string.
       *  @param str  String containing characters to locate.
       *  @param pos  Index of character to search back from (default end).
       *  @return  Index of last occurrence.
       *
       *  Starting from @a pos, searches backward for one of the characters of
       *  @a str within this string.  If found, returns the index where it was
       *  found.  If not found, returns npos.
      */
      size_type
      find_last_of(const basic_string& __str, size_type __pos = npos) const
      { return this->find_last_of(__str.data(), __pos, __str.size()); }

      /**
       *  @brief  Find last position of a character of C substring.
       *  @param s  C string containing characters to locate.
       *  @param pos  Index of character to search back from (default end).
       *  @param n  Number of characters from s to search for.
       *  @return  Index of last occurrence.
       *
       *  Starting from @a pos, searches backward for one of the first @a n
       *  characters of @a s within this string.  If found, returns the index
       *  where it was found.  If not found, returns npos.
      */
      size_type
      find_last_of(const _CharT* __s, size_type __pos, size_type __n) const;

      /**
       *  @brief  Find last position of a character of C string.
       *  @param s  C string containing characters to locate.
       *  @param pos  Index of character to search back from (default end).
       *  @return  Index of last occurrence.
       *
       *  Starting from @a pos, searches backward for one of the characters of
       *  @a s within this string.  If found, returns the index where it was
       *  found.  If not found, returns npos.
      */
      size_type
      find_last_of(const _CharT* __s, size_type __pos = npos) const
      {
	__glibcxx_requires_string(__s);
	return this->find_last_of(__s, __pos, traits_type::length(__s));
      }

      /**
       *  @brief  Find last position of a character.
       *  @param c  Character to locate.
       *  @param pos  Index of character to search back from (default 0).
       *  @return  Index of last occurrence.
       *
       *  Starting from @a pos, searches backward for @a c within this string.
       *  If found, returns the index where it was found.  If not found,
       *  returns npos.
       *
       *  Note: equivalent to rfind(c, pos).
      */
      size_type
      find_last_of(_CharT __c, size_type __pos = npos) const
      { return this->rfind(__c, __pos); }

      /**
       *  @brief  Find position of a character not in string.
       *  @param str  String containing characters to avoid.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for a character not contained
       *  in @a str within this string.  If found, returns the index where it
       *  was found.  If not found, returns npos.
      */
      size_type
      find_first_not_of(const basic_string& __str, size_type __pos = 0) const
      { return this->find_first_not_of(__str.data(), __pos, __str.size()); }

      /**
       *  @brief  Find position of a character not in C substring.
       *  @param s  C string containing characters to avoid.
       *  @param pos  Index of character to search from (default 0).
       *  @param n  Number of characters from s to consider.
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for a character not contained
       *  in the first @a n characters of @a s within this string.  If found,
       *  returns the index where it was found.  If not found, returns npos.
      */
      size_type
      find_first_not_of(const _CharT* __s, size_type __pos,
			size_type __n) const;

      /**
       *  @brief  Find position of a character not in C string.
       *  @param s  C string containing characters to avoid.
       *  @param pos  Index of character to search from (default 0).
       *  @return  Index of first occurrence.
       *
       *  Starting from @a pos, searches forward for a character not contained
       *  in @a s within this string.  If found, returns the index where it
       *  was found.