_string.h

stl的源码

    erase(begin() + __pos, begin() + __pos + (min) (__n, size() - __pos));
    return *this;
  }

  iterator erase(iterator __pos) {
    // The move includes the terminating _CharT().
    _Traits::move(__pos, __pos + 1, this->_M_Finish() - __pos);
    --this->_M_finish;
    return __pos;
  }

  iterator erase(iterator __first, iterator __last) {
    if (__first != __last) {
      // The move includes the terminating _CharT().
      traits_type::move(__first, __last, (this->_M_Finish() - __last) + 1);
      this->_M_finish = this->_M_Finish() - (__last - __first);
    }
    return __first;
  }

public:                         // Replace.  (Conceptually equivalent
                                // to erase followed by insert.)
  _Self& replace(size_type __pos, size_type __n, const _Self& __s) {
    const size_type __size = size();
    if (__pos > __size)
      this->_M_throw_out_of_range();
    const size_type __len = (min) (__n, __size - __pos);
    if (__s.size() > max_size() - (__size - __len))
      this->_M_throw_length_error();
    return _M_replace(begin() + __pos, begin() + __pos + __len,
                      __s._M_Start(), __s._M_Finish(), &__s == this);
  }

  _Self& replace(size_type __pos1, size_type __n1, const _Self& __s,
                 size_type __pos2, size_type __n2) {
    const size_type __size1 = size();
    const size_type __size2 = __s.size();
    if (__pos1 > __size1 || __pos2 > __size2)
      this->_M_throw_out_of_range();
    const size_type __len1 = (min) (__n1, __size1 - __pos1);
    const size_type __len2 = (min) (__n2, __size2 - __pos2);
    if (__len2 > max_size() - (__size1 - __len1))
      this->_M_throw_length_error();
    return _M_replace(begin() + __pos1, begin() + __pos1 + __len1,
                      __s._M_Start() + __pos2, __s._M_Start() + __pos2 + __len2, &__s == this);
  }

  _Self& replace(size_type __pos, size_type __n1,
                 const _CharT* __s, size_type __n2) {
    _STLP_FIX_LITERAL_BUG(__s)
    const size_type __size = size();
    if (__pos > __size)
      this->_M_throw_out_of_range();
    const size_type __len = (min) (__n1, __size - __pos);
    if (__n2 > max_size() - (__size - __len))
      this->_M_throw_length_error();
    return _M_replace(begin() + __pos, begin() + __pos + __len,
                      __s, __s + __n2, _M_inside(__s));
  }

  _Self& replace(size_type __pos, size_type __n1, const _CharT* __s) {
    _STLP_FIX_LITERAL_BUG(__s)
    return replace(__pos, __n1, __s, _Traits::length(__s));
  }

  _Self& replace(size_type __pos, size_type __n1,
                 size_type __n2, _CharT __c) {
    const size_type __size = size();
    if (__pos > __size)
      this->_M_throw_out_of_range();
    const size_type __len = (min) (__n1, __size - __pos);
    if (__n2 > max_size() - (__size - __len))
      this->_M_throw_length_error();
    return replace(begin() + __pos, begin() + __pos + __len, __n2, __c);
  }

  _Self& replace(iterator __first, iterator __last, const _Self& __s) {
    _STLP_FIX_LITERAL_BUG(__first)_STLP_FIX_LITERAL_BUG(__last)
    return _M_replace(__first, __last, __s._M_Start(), __s._M_Finish(), &__s == this);
  }

  _Self& replace(iterator __first, iterator __last,
                 const _CharT* __s, size_type __n) {
    _STLP_FIX_LITERAL_BUG(__first)_STLP_FIX_LITERAL_BUG(__last)
    _STLP_FIX_LITERAL_BUG(__s)
    return _M_replace(__first, __last, __s, __s + __n, _M_inside(__s));
  }

  _Self& replace(iterator __first, iterator __last,
                 const _CharT* __s) {
    _STLP_FIX_LITERAL_BUG(__first)_STLP_FIX_LITERAL_BUG(__last)
    _STLP_FIX_LITERAL_BUG(__s)
    return _M_replace(__first, __last, __s, __s + _Traits::length(__s), _M_inside(__s));
  }

  _Self& replace(iterator __first, iterator __last, size_type __n, _CharT __c);

_STLP_PRIVATE:                        // Helper functions for replace.
  _Self& _M_replace(iterator __first, iterator __last,
                    const _CharT* __f, const _CharT* __l, bool __self_ref);

#if defined (_STLP_MEMBER_TEMPLATES) && !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
  template <class _Integer>
  _Self& _M_replace_dispatch(iterator __first, iterator __last,
                             _Integer __n, _Integer __x, const __true_type& /*IsIntegral*/) {
    _STLP_FIX_LITERAL_BUG(__first) _STLP_FIX_LITERAL_BUG(__last)
    return replace(__first, __last, (size_type) __n, (_CharT) __x);
  }

  template <class _InputIter>
  _Self& _M_replace_dispatch(iterator __first, iterator __last,
                             _InputIter __f, _InputIter __l, const __false_type& /*IsIntegral*/) {
    _STLP_FIX_LITERAL_BUG(__first) _STLP_FIX_LITERAL_BUG(__last)
    /* We are forced to do a temporary string to avoid the self referencing issue. */
    const _Self __self(__f, __l, get_allocator());
    return _M_replace(__first, __last, __self._M_Start(), __self._M_Finish(), false);
  }

public:
  // Check to see if _InputIter is an integer type.  If so, then
  // it can't be an iterator.
  template <class _InputIter>
  _Self& replace(iterator __first, iterator __last,
                 _InputIter __f, _InputIter __l) {
    _STLP_FIX_LITERAL_BUG(__first)_STLP_FIX_LITERAL_BUG(__last)
    typedef typename _IsIntegral<_InputIter>::_Ret _Integral;
    return _M_replace_dispatch(__first, __last, __f, __l,  _Integral());
  }
#endif

#if !defined (_STLP_MEMBER_TEMPLATES) || !defined (_STLP_NO_METHOD_SPECIALIZATION)
public:
  _Self& replace(iterator __first, iterator __last,
                 const _CharT* __f, const _CharT* __l) {
    _STLP_FIX_LITERAL_BUG(__first)_STLP_FIX_LITERAL_BUG(__last)
    _STLP_FIX_LITERAL_BUG(__f) _STLP_FIX_LITERAL_BUG(__l)
    return _M_replace(__first, __last, __f, __l, _M_inside(__f));
  }
#endif

public:                         // Other modifier member functions.

  size_type copy(_CharT* __s, size_type __n, size_type __pos = 0) const {
    _STLP_FIX_LITERAL_BUG(__s)
    if (__pos > size())
      this->_M_throw_out_of_range();
    const size_type __len = (min) (__n, size() - __pos);
    _Traits::copy(__s, this->_M_Start() + __pos, __len);
    return __len;
  }

  void swap(_Self& __s) { this->_M_swap(__s); }
#if defined (_STLP_USE_PARTIAL_SPEC_WORKAROUND) && !defined (_STLP_FUNCTION_TMPL_PARTIAL_ORDER)
  void _M_swap_workaround(_Self& __x) { swap(__x); }
#endif

public:                         // Conversion to C string.

  const _CharT* c_str() const { return this->_M_Start(); }
  const _CharT* data()  const { return this->_M_Start(); }

public: // find.
  size_type find(const _Self& __s, size_type __pos = 0) const
  { return find(__s._M_Start(), __pos, __s.size()); }

  size_type find(const _CharT* __s, size_type __pos = 0) const
  { _STLP_FIX_LITERAL_BUG(__s) return find(__s, __pos, _Traits::length(__s)); }

  size_type find(const _CharT* __s, size_type __pos, size_type __n) const;

  // WIE: Versant schema compiler 5.2.2 ICE workaround
  size_type find(_CharT __c) const { return find(__c, 0); }
  size_type find(_CharT __c, size_type __pos /* = 0 */) const;

public: // rfind.
  size_type rfind(const _Self& __s, size_type __pos = npos) const
  { return rfind(__s._M_Start(), __pos, __s.size()); }

  size_type rfind(const _CharT* __s, size_type __pos = npos) const
  { _STLP_FIX_LITERAL_BUG(__s) return rfind(__s, __pos, _Traits::length(__s)); }

  size_type rfind(const _CharT* __s, size_type __pos, size_type __n) const;
  size_type rfind(_CharT __c, size_type __pos = npos) const;

public: // find_first_of
  size_type find_first_of(const _Self& __s, size_type __pos = 0) const
  { return find_first_of(__s._M_Start(), __pos, __s.size()); }

  size_type find_first_of(const _CharT* __s, size_type __pos = 0) const
  { _STLP_FIX_LITERAL_BUG(__s) return find_first_of(__s, __pos, _Traits::length(__s)); }

  size_type find_first_of(const _CharT* __s, size_type __pos, size_type __n) const;

  size_type find_first_of(_CharT __c, size_type __pos = 0) const
  { return find(__c, __pos); }

public: // find_last_of
  size_type find_last_of(const _Self& __s, size_type __pos = npos) const
  { return find_last_of(__s._M_Start(), __pos, __s.size()); }

  size_type find_last_of(const _CharT* __s, size_type __pos = npos) const
  { _STLP_FIX_LITERAL_BUG(__s) return find_last_of(__s, __pos, _Traits::length(__s)); }

  size_type find_last_of(const _CharT* __s, size_type __pos, size_type __n) const;

  size_type find_last_of(_CharT __c, size_type __pos = npos) const
  { return rfind(__c, __pos); }

public: // find_first_not_of
  size_type find_first_not_of(const _Self& __s, size_type __pos = 0) const
  { return find_first_not_of(__s._M_Start(), __pos, __s.size()); }

  size_type find_first_not_of(const _CharT* __s, size_type __pos = 0) const
  { _STLP_FIX_LITERAL_BUG(__s) return find_first_not_of(__s, __pos, _Traits::length(__s)); }

  size_type find_first_not_of(const _CharT* __s, size_type __pos, size_type __n) const;

  size_type find_first_not_of(_CharT __c, size_type __pos = 0) const;

public: // find_last_not_of
  size_type find_last_not_of(const _Self& __s, size_type __pos = npos) const
  { return find_last_not_of(__s._M_Start(), __pos, __s.size()); }

  size_type find_last_not_of(const _CharT* __s, size_type __pos = npos) const
  { _STLP_FIX_LITERAL_BUG(__s) return find_last_not_of(__s, __pos, _Traits::length(__s)); }

  size_type find_last_not_of(const _CharT* __s, size_type __pos, size_type __n) const;

  size_type find_last_not_of(_CharT __c, size_type __pos = npos) const;

public: // Substring.
  _Self substr(size_type __pos = 0, size_type __n = npos) const
  { return _Self(*this, __pos, __n, get_allocator()); }

public: // Compare
  int compare(const _Self& __s) const
  { return _M_compare(this->_M_Start(), this->_M_Finish(), __s._M_Start(), __s._M_Finish()); }

  int compare(size_type __pos1, size_type __n1, const _Self& __s) const {
    if (__pos1 > size())
      this->_M_throw_out_of_range();
    return _M_compare(this->_M_Start() + __pos1,
                      this->_M_Start() + __pos1 + (min) (__n1, size() - __pos1),
                      __s._M_Start(), __s._M_Finish());
  }

  int compare(size_type __pos1, size_type __n1, const _Self& __s,
              size_type __pos2, size_type __n2) const {
    if (__pos1 > size() || __pos2 > __s.size())
      this->_M_throw_out_of_range();
    return _M_compare(this->_M_Start() + __pos1,
                      this->_M_Start() + __pos1 + (min) (__n1, size() - __pos1),
                      __s._M_Start() + __pos2,
                      __s._M_Start() + __pos2 + (min) (__n2, __s.size() - __pos2));
  }

  int compare(const _CharT* __s) const {
    _STLP_FIX_LITERAL_BUG(__s)
    return _M_compare(this->_M_Start(), this->_M_Finish(), __s, __s + _Traits::length(__s));
  }

  int compare(size_type __pos1, size_type __n1, const _CharT* __s) const {
    _STLP_FIX_LITERAL_BUG(__s)
    if (__pos1 > size())
      this->_M_throw_out_of_range();
    return _M_compare(this->_M_Start() + __pos1,
                      this->_M_Start() + __pos1 + (min) (__n1, size() - __pos1),
                      __s, __s + _Traits::length(__s));
  }

  int compare(size_type __pos1, size_type __n1, const _CharT* __s, size_type __n2) const {
    _STLP_FIX_LITERAL_BUG(__s)
    if (__pos1 > size())
      this->_M_throw_out_of_range();
    return _M_compare(this->_M_Start() + __pos1,
                      this->_M_Start() + __pos1 + (min) (__n1, size() - __pos1),
                      __s, __s + __n2);
  }

public: // Helper functions for compare.
  static int _STLP_CALL _M_compare(const _CharT* __f1, const _CharT* __l1,
                                   const _CharT* __f2, const _CharT* __l2) {
    const ptrdiff_t __n1 = __l1 - __f1;
    const ptrdiff_t __n2 = __l2 - __f2;
    const int cmp = _Traits::compare(__f1, __f2, (min) (__n1, __n2));
    return cmp != 0 ? cmp : (__n1 < __n2 ? -1 : (__n1 > __n2 ? 1 : 0));
  }
#if defined (_STLP_USE_TEMPLATE_EXPRESSION) && !defined (_STLP_DEBUG) && !defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
#  define _STLP_STRING_SUM_BASE(__reserve, __size, __alloc) _STLP_PRIV _String_base<_CharT,_Alloc>(__alloc, __size + 1)
#  include <stl/_string_sum_methods.h>
#  undef _STLP_STRING_SUM_BASE
#endif
};

#undef _STLP_PRIVATE

#if defined (__GNUC__) && (__GNUC__ == 2) && (__GNUC_MINOR__ == 96)
template <class _CharT, class _Traits, class _Alloc>
const size_t basic_string<_CharT, _Traits, _Alloc>::npos = ~(size_t) 0;
#endif

#if defined (_STLP_USE_TEMPLATE_EXPORT)
_STLP_EXPORT_TEMPLATE_CLASS basic_string<char, char_traits<char>, allocator<char> >;
#  if defined (_STLP_HAS_WCHAR_T)
_STLP_EXPORT_TEMPLATE_CLASS basic_string<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
#  endif
#endif /* _STLP_USE_TEMPLATE_EXPORT */

#if defined (basic_string)
_STLP_MOVE_TO_STD_NAMESPACE
#  undef basic_string
#endif

_STLP_END_NAMESPACE

#if defined (_STLP_USE_MSVC6_MEM_T_BUG_WORKAROUND)
#  include <stl/_string_workaround.h>
#endif

#if defined (_STLP_DEBUG)
#  include <stl/debug/_string.h>
#endif

_STLP_BEGIN_NAMESPACE

// ------------------------------------------------------------
// Non-member functions.
// Swap.
#if defined (_STLP_FUNCTION_TMPL_PARTIAL_ORDER)
template <class _CharT, class _Traits, class _Alloc>
inline void _STLP_CALL
swap(basic_string<_CharT,_Traits,_Alloc>& __x,
     basic_string<_CharT,_Traits,_Alloc>& __y)
{ __x.swap(__y); }
#else
inline void _STLP_CALL swap(string& __x, string& __y)
{ __x.swap(__y); }
#  if defined (_STLP_HAS_WCHAR_T)
inline void _STLP_CALL swap(wstring& __x, wstring& __y)
{ __x.swap(__y); }
#  endif
#endif

#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION) && !defined (_STLP_NO_MOVE_SEMANTIC)
template <class _CharT, class _Traits, class _Alloc>
struct __move_traits<basic_string<_CharT, _Traits, _Alloc> > {
  typedef __true_type implemented;
  //Completness depends on the allocator:
  typedef typename __move_traits<_Alloc>::complete complete;
};
/*#else
 * There is no need to specialize for string and wstring in this case
 * as the default __move_traits will already tell that string is movable
 * but not complete. We cannot define it as complete as nothing guaranty
 * that the STLport user hasn't specialized std::allocator for char or
 * wchar_t.
 */
#endif

_STLP_MOVE_TO_PRIV_NAMESPACE

template <class _CharT, class _Traits, class _Alloc>
void _STLP_CALL _S_string_copy(const basic_string<_CharT,_Traits,_Alloc>& __s,
                               _CharT* __buf, size_t __n);

#if defined(_STLP_USE_WIDE_INTERFACE)
// A couple of functions to transfer between ASCII/Unicode
wstring __ASCIIToWide(const char *ascii);
string __WideToASCII(const wchar_t *wide);
#endif

inline const char* _STLP_CALL
__get_c_string(const string& __str) { return __str.c_str(); }

_STLP_MOVE_TO_STD_NAMESPACE

_STLP_END_NAMESPACE

#include <stl/_string_operators.h>

#if defined(_STLP_USE_NO_IOSTREAMS) || \
    (defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION))
#  include <stl/_string.c>
#endif

#endif /* _STLP_INTERNAL_STRING_H */

/*
 * Local Variables:
 * mode:C++
 * End:
 */