--- /dev/null
+/*
+ * Copyright (c) 1999
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1999
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ */
+// WARNING: This is an internal header file, included by other C++
+// standard library headers. You should not attempt to use this header
+// file directly.
+
+
+#ifndef _STLP_INTERNAL_ISTREAMBUF_ITERATOR_H
+#define _STLP_INTERNAL_ISTREAMBUF_ITERATOR_H
+
+#ifndef _STLP_INTERNAL_ITERATOR_BASE_H
+# include <stl/_iterator_base.h>
+#endif
+
+#ifndef _STLP_INTERNAL_STREAMBUF
+# include <stl/_streambuf.h>
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+// defined in _istream.h
+template <class _CharT, class _Traits>
+extern basic_streambuf<_CharT, _Traits>* _STLP_CALL _M_get_istreambuf(basic_istream<_CharT, _Traits>& ) ;
+
+// We do not read any characters until operator* is called. operator* calls sgetc
+// unless the iterator is unchanged from the last call in which case a cached value is
+// used. Calls to operator++ use sbumpc.
+
+template<class _CharT, class _Traits>
+class istreambuf_iterator :
+ public iterator<input_iterator_tag, _CharT, typename _Traits::off_type, _CharT*, _CharT&>
+{
+public:
+ typedef _CharT char_type;
+ typedef _Traits traits_type;
+ typedef typename _Traits::int_type int_type;
+ typedef basic_streambuf<_CharT, _Traits> streambuf_type;
+ typedef basic_istream<_CharT, _Traits> istream_type;
+
+ typedef input_iterator_tag iterator_category;
+ typedef _CharT value_type;
+ typedef typename _Traits::off_type difference_type;
+ typedef const _CharT* pointer;
+ typedef const _CharT& reference;
+
+public:
+ istreambuf_iterator(streambuf_type* __p = 0) { this->_M_init(__p); }
+ // istreambuf_iterator(basic_istream<_CharT, _Traits>& __is) { this->_M_init(_M_get_istreambuf(__is)); }
+ inline istreambuf_iterator(basic_istream<_CharT, _Traits>& __is);
+
+ char_type operator*() const { this->_M_getc(); return _M_c; }
+ istreambuf_iterator<_CharT, _Traits>& operator++()
+ {
+ _M_buf->sbumpc();
+ _M_have_c = false;
+ return *this;
+ }
+ istreambuf_iterator<_CharT, _Traits> operator++(int);
+
+ bool equal(const istreambuf_iterator<_CharT, _Traits>& __i) const {
+ if (this->_M_buf)
+ this->_M_getc();
+ if (__i._M_buf)
+ __i._M_getc();
+ return this->_M_eof == __i._M_eof;
+ }
+
+private:
+ void _M_init(streambuf_type* __p) {
+ _M_buf = __p;
+ _M_eof = (__p == 0);
+ _M_have_c = false;
+ }
+
+ void _M_getc() const {
+ if (_M_have_c)
+ return;
+ int_type __c = _M_buf->sgetc();
+# if !defined (_STLP_NEED_MUTABLE) /* && ! defined (__SUNPRO_CC) */
+ _M_c = traits_type::to_char_type(__c);
+ _M_eof = traits_type::eq_int_type(__c, traits_type::eof());
+ _M_have_c = true;
+# else
+ typedef istreambuf_iterator<_CharT,_Traits> _Self;
+ _Self* __that = __CONST_CAST(_Self*, this);
+ __that->_M_c = __STATIC_CAST(_CharT, traits_type::to_char_type(__c));
+ __that->_M_eof = traits_type::eq_int_type(__c, traits_type::eof());
+ __that->_M_have_c = true;
+# endif
+ }
+
+private:
+ streambuf_type* _M_buf;
+ mutable _CharT _M_c;
+ mutable bool _M_eof;
+ mutable bool _M_have_c;
+};
+
+template<class _CharT, class _Traits>
+inline istreambuf_iterator<_CharT, _Traits>::istreambuf_iterator(basic_istream<_CharT, _Traits>& __is)
+{ this->_M_init(_M_get_istreambuf(__is)); }
+
+template<class _CharT, class _Traits>
+inline bool _STLP_CALL operator==(const istreambuf_iterator<_CharT, _Traits>& __x,
+ const istreambuf_iterator<_CharT, _Traits>& __y) {
+ return __x.equal(__y);
+}
+
+#ifdef _STLP_USE_SEPARATE_RELOPS_NAMESPACE
+
+template<class _CharT, class _Traits>
+inline bool _STLP_CALL operator!=(const istreambuf_iterator<_CharT, _Traits>& __x,
+ const istreambuf_iterator<_CharT, _Traits>& __y) {
+ return !__x.equal(__y);
+}
+
+#endif /* _STLP_USE_SEPARATE_RELOPS_NAMESPACE */
+
+# if defined (_STLP_USE_TEMPLATE_EXPORT)
+_STLP_EXPORT_TEMPLATE_CLASS istreambuf_iterator<char, char_traits<char> >;
+# if defined (INSTANTIATE_WIDE_STREAMS)
+_STLP_EXPORT_TEMPLATE_CLASS istreambuf_iterator<wchar_t, char_traits<wchar_t> >;
+# endif
+# endif /* _STLP_USE_TEMPLATE_EXPORT */
+
+# ifdef _STLP_USE_OLD_HP_ITERATOR_QUERIES
+template <class _CharT, class _Traits>
+inline input_iterator_tag _STLP_CALL iterator_category(const istreambuf_iterator<_CharT, _Traits>&) { return input_iterator_tag(); }
+template <class _CharT, class _Traits>
+inline streamoff* _STLP_CALL
+distance_type(const istreambuf_iterator<_CharT, _Traits>&) { return (streamoff*)0; }
+template <class _CharT, class _Traits>
+inline _CharT* _STLP_CALL value_type(const istreambuf_iterator<_CharT, _Traits>&) { return (_CharT*)0; }
+# endif
+
+template <class _CharT, class _Traits>
+istreambuf_iterator<_CharT, _Traits>
+istreambuf_iterator<_CharT, _Traits>::operator++(int) {
+ _M_getc(); // __tmp should avoid any future actions under
+ // underlined buffer---during call of operator *()
+ // (due to buffer for *this and __tmp are the same).
+ istreambuf_iterator<_CharT, _Traits> __tmp = *this;
+ _M_buf->sbumpc();
+ _M_have_c = false;
+ return __tmp;
+}
+
+_STLP_END_NAMESPACE
+
+#endif /* _STLP_INTERNAL_ISTREAMBUF_ITERATOR_H */
+
+// Local Variables:
+// mode:C++
+// End:
+
projects / polintos / scott / priv.git / blobdiff