+++ /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.
- *
- */
-#ifndef _STLP_INTERNAL_ISTREAM
-#define _STLP_INTERNAL_ISTREAM
-
-// this block is included by _ostream.h, we include it here to lower #include level
-#if defined (_STLP_HAS_WCHAR_T) && !defined (_STLP_INTERNAL_CWCHAR)
-# include <stl/_cwchar.h>
-#endif
-
-#ifndef _STLP_INTERNAL_IOS_H
-# include <stl/_ios.h> // For basic_ios<>. Includes <iosfwd>.
-#endif
-
-#ifndef _STLP_INTERNAL_OSTREAM_H
-# include <stl/_ostream.h> // Needed as a base class of basic_iostream.
-#endif
-
-#ifndef _STLP_INTERNAL_ISTREAMBUF_ITERATOR_H
-# include <stl/_istreambuf_iterator.h>
-#endif
-
-#include <stl/_ctraits_fns.h> // Helper functions that allow char traits
- // to be used as function objects.
-_STLP_BEGIN_NAMESPACE
-
-#if defined (_STLP_USE_TEMPLATE_EXPORT)
-template <class _CharT, class _Traits>
-class _Isentry;
-#endif
-
-struct _No_Skip_WS {}; // Dummy class used by sentry.
-
-template <class _CharT, class _Traits>
-bool _M_init_skip(basic_istream<_CharT, _Traits>& __istr);
-template <class _CharT, class _Traits>
-bool _M_init_noskip(basic_istream<_CharT, _Traits>& __istr);
-
-//----------------------------------------------------------------------
-// Class basic_istream, a class that performs formatted input through
-// a stream buffer.
-
-// The second template parameter, _Traits, defaults to char_traits<_CharT>.
-// The default is declared in header <iosfwd>, and it isn't declared here
-// because C++ language rules do not allow it to be declared twice.
-
-template <class _CharT, class _Traits>
-class basic_istream : virtual public basic_ios<_CharT, _Traits> {
- typedef basic_istream<_CharT, _Traits> _Self;
-
-#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
- //explicitely defined as private to avoid warnings:
- basic_istream(_Self const&);
- _Self& operator = (_Self const&);
-#endif
-
-public:
- // Types
- typedef _CharT char_type;
- typedef typename _Traits::int_type int_type;
- typedef typename _Traits::pos_type pos_type;
- typedef typename _Traits::off_type off_type;
- typedef _Traits traits_type;
- typedef basic_ios<_CharT, _Traits> _Basic_ios;
-
- typedef basic_ios<_CharT, _Traits>& (_STLP_CALL *__ios_fn)(basic_ios<_CharT, _Traits>&);
- typedef ios_base& (_STLP_CALL *__ios_base_fn)(ios_base&);
- typedef _Self& (_STLP_CALL *__istream_fn)(_Self&);
-
-public: // Constructor and destructor.
- explicit basic_istream(basic_streambuf<_CharT, _Traits>* __buf) :
- basic_ios<_CharT, _Traits>(), _M_gcount(0) {
- this->init(__buf);
- }
- ~basic_istream() {};
-
-public: // Nested sentry class.
-
-public: // Hooks for manipulators. The arguments are
- // function pointers.
- _Self& operator>> (__istream_fn __f) { return __f(*this); }
- _Self& operator>> (__ios_fn __f) { __f(*this); return *this; }
- _Self& operator>> (__ios_base_fn __f) { __f(*this); return *this; }
-
-public: // Formatted input of numbers.
- _Self& operator>> (short& __val);
- _Self& operator>> (int& __val);
- _Self& operator>> (unsigned short& __val);
- _Self& operator>> (unsigned int& __val);
- _Self& operator>> (long& __val);
- _Self& operator>> (unsigned long& __val);
-#ifdef _STLP_LONG_LONG
- _Self& operator>> (_STLP_LONG_LONG& __val);
- _Self& operator>> (unsigned _STLP_LONG_LONG& __val);
-#endif
- _Self& operator>> (float& __val);
- _Self& operator>> (double& __val);
-# ifndef _STLP_NO_LONG_DOUBLE
- _Self& operator>> (long double& __val);
-# endif
-# ifndef _STLP_NO_BOOL
- _Self& operator>> (bool& __val);
-# endif
- _Self& operator>> (void*& __val);
-
-public: // Copying characters into a streambuf.
- _Self& operator>>(basic_streambuf<_CharT, _Traits>*);
-
-public: // Unformatted input.
- streamsize gcount() const { return _M_gcount; }
- int_type peek();
-
-public: // get() for single characters
- int_type get();
- _Self& get(char_type& __c);
-
-public: // get() for character arrays.
- _Self& get(char_type* __s, streamsize __n, char_type __delim);
- _Self& get(char_type* __s, streamsize __n)
- { return get(__s, __n, this->widen('\n')); }
-
-public: // get() for streambufs
- _Self& get(basic_streambuf<_CharT, _Traits>& __buf,
- char_type __delim);
- _Self& get(basic_streambuf<_CharT, _Traits>& __buf)
- { return get(__buf, this->widen('\n')); }
-
-public: // getline()
- _Self& getline(char_type* __s, streamsize __n, char_type delim);
- _Self& getline(char_type* __s, streamsize __n)
- { return getline(__s, __n, this->widen('\n')); }
-
-public: // read(), readsome(), ignore()
- _Self& ignore();
- _Self& ignore(streamsize __n);
- _Self& ignore(streamsize __n, int_type __delim);
-
- _Self& read(char_type* __s, streamsize __n);
- streamsize readsome(char_type* __s, streamsize __n);
-
-public: // putback
- _Self& putback(char_type __c);
- _Self& unget();
-
-public: // Positioning and buffer control.
- int sync();
-
- pos_type tellg();
- _Self& seekg(pos_type __pos);
- _Self& seekg(off_type, ios_base::seekdir);
-
-public: // Helper functions for non-member extractors.
- void _M_formatted_get(_CharT& __c);
- void _M_formatted_get(_CharT* __s);
- void _M_skip_whitespace(bool __set_failbit);
-
-private: // Number of characters extracted by the
- streamsize _M_gcount; // most recent unformatted input function.
-
-public:
-
-#if defined (_STLP_USE_TEMPLATE_EXPORT)
- // If we are using DLL specs, we have not to use inner classes
- // end class declaration here
- typedef _Isentry<_CharT, _Traits> sentry;
-};
-# define sentry _Isentry
-template <class _CharT, class _Traits>
-class _Isentry {
- typedef _Isentry<_CharT, _Traits> _Self;
-# else
- class sentry {
- typedef sentry _Self;
-#endif
-
- private:
- const bool _M_ok;
- // basic_streambuf<_CharT, _Traits>* _M_buf;
-
- public:
- typedef _Traits traits_type;
-
- explicit sentry(basic_istream<_CharT, _Traits>& __istr,
- bool __noskipws = false) :
- _M_ok((__noskipws || !(__istr.flags() & ios_base::skipws)) ? _M_init_noskip(__istr) : _M_init_skip(__istr) )
- /* , _M_buf(__istr.rdbuf()) */
- {}
-
- // Calling this constructor is the same as calling the previous one with
- // __noskipws = true, except that it doesn't require a runtime test.
- sentry(basic_istream<_CharT, _Traits>& __istr, _No_Skip_WS) : /* _M_buf(__istr.rdbuf()), */
- _M_ok(_M_init_noskip(__istr)) {}
-
- ~sentry() {}
-
- operator bool() const { return _M_ok; }
-
- private: // Disable assignment and copy constructor.
- //Implementation is here only to avoid warning with some compilers.
- sentry(const _Self&) : _M_ok(false) {}
- _Self& operator=(const _Self&) { return *this; }
- };
-
-# if defined (_STLP_USE_TEMPLATE_EXPORT)
-# undef sentry
-# else
- // close basic_istream class definition here
-};
-# endif
-
-# if defined (_STLP_USE_TEMPLATE_EXPORT)
-_STLP_EXPORT_TEMPLATE_CLASS _Isentry<char, char_traits<char> >;
-_STLP_EXPORT_TEMPLATE_CLASS basic_istream<char, char_traits<char> >;
-# if ! defined (_STLP_NO_WCHAR_T)
-_STLP_EXPORT_TEMPLATE_CLASS _Isentry<wchar_t, char_traits<wchar_t> >;
-_STLP_EXPORT_TEMPLATE_CLASS basic_istream<wchar_t, char_traits<wchar_t> >;
-# endif
-# endif /* _STLP_USE_TEMPLATE_EXPORT */
-
-// Non-member character and string extractor functions.
-template <class _CharT, class _Traits>
-inline basic_istream<_CharT, _Traits>& _STLP_CALL
-operator>>(basic_istream<_CharT, _Traits>& __in_str, _CharT& __c) {
- __in_str._M_formatted_get(__c);
- return __in_str;
-}
-
-template <class _Traits>
-inline basic_istream<char, _Traits>& _STLP_CALL
-operator>>(basic_istream<char, _Traits>& __in_str, unsigned char& __c) {
- __in_str._M_formatted_get(__REINTERPRET_CAST(char&,__c));
- return __in_str;
-}
-
-template <class _Traits>
-inline basic_istream<char, _Traits>& _STLP_CALL
-operator>>(basic_istream<char, _Traits>& __in_str, signed char& __c) {
- __in_str._M_formatted_get(__REINTERPRET_CAST(char&,__c));
- return __in_str;
-}
-
-template <class _CharT, class _Traits>
-inline basic_istream<_CharT, _Traits>& _STLP_CALL
-operator>>(basic_istream<_CharT, _Traits>& __in_str, _CharT* __s) {
- __in_str._M_formatted_get(__s);
- return __in_str;
-}
-
-template <class _Traits>
-inline basic_istream<char, _Traits>& _STLP_CALL
-operator>>(basic_istream<char, _Traits>& __in_str, unsigned char* __s) {
- __in_str._M_formatted_get(__REINTERPRET_CAST(char*,__s));
- return __in_str;
-}
-
-template <class _Traits>
-inline basic_istream<char, _Traits>& _STLP_CALL
-operator>>(basic_istream<char, _Traits>& __in_str, signed char* __s) {
- __in_str._M_formatted_get(__REINTERPRET_CAST(char*,__s));
- return __in_str;
-}
-
-//----------------------------------------------------------------------
-// istream manipulator.
-template <class _CharT, class _Traits>
-basic_istream<_CharT, _Traits>& _STLP_CALL
-ws(basic_istream<_CharT, _Traits>& __istr) {
- if (!__istr.eof()) {
- typedef typename basic_istream<_CharT, _Traits>::sentry _Sentry;
- _Sentry __sentry(__istr, _No_Skip_WS()); // Don't skip whitespace.
- if (__sentry)
- __istr._M_skip_whitespace(false);
- }
- return __istr;
-}
-
-// Helper functions for istream<>::sentry constructor.
-template <class _CharT, class _Traits>
-inline bool _M_init_skip(basic_istream<_CharT, _Traits>& __istr) {
- if (__istr.good()) {
- if (__istr.tie())
- __istr.tie()->flush();
-
- __istr._M_skip_whitespace(true);
- }
-
- if (!__istr.good()) {
- __istr.setstate(ios_base::failbit);
- return false;
- } else
- return true;
-}
-
-template <class _CharT, class _Traits>
-inline bool _M_init_noskip(basic_istream<_CharT, _Traits>& __istr) {
- if (__istr.good()) {
- if (__istr.tie())
- __istr.tie()->flush();
-
- if (!__istr.rdbuf())
- __istr.setstate(ios_base::badbit);
- }
- else
- __istr.setstate(ios_base::failbit);
- return __istr.good();
-}
-
-//----------------------------------------------------------------------
-// Class iostream.
-template <class _CharT, class _Traits>
-class basic_iostream
- : public basic_istream<_CharT, _Traits>,
- public basic_ostream<_CharT, _Traits>
-{
-public:
- typedef basic_ios<_CharT, _Traits> _Basic_ios;
-
- explicit basic_iostream(basic_streambuf<_CharT, _Traits>* __buf);
- virtual ~basic_iostream();
-};
-
-# if defined (_STLP_USE_TEMPLATE_EXPORT)
-_STLP_EXPORT_TEMPLATE_CLASS basic_iostream<char, char_traits<char> >;
-
-# if ! defined (_STLP_NO_WCHAR_T)
-_STLP_EXPORT_TEMPLATE_CLASS basic_iostream<wchar_t, char_traits<wchar_t> >;
-# endif
-# endif /* _STLP_USE_TEMPLATE_EXPORT */
-
-template <class _CharT, class _Traits>
-basic_streambuf<_CharT, _Traits>* _STLP_CALL _M_get_istreambuf(basic_istream<_CharT, _Traits>& __istr)
-{ return __istr.rdbuf(); }
-
-_STLP_END_NAMESPACE
-
-#if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
-# include <stl/_istream.c>
-#endif
-
-#endif /* _STLP_INTERNAL_ISTREAM */
-
-// Local Variables:
-// mode:C++
-// End:
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