mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-23 02:09:08 +08:00
b2dad0e372
2000-04-21 Benjamin Kosnik <bkoz@redhat.com> * libstdc++-v3: New directory. From-SVN: r33317
308 lines
8.2 KiB
C++
308 lines
8.2 KiB
C++
// Input streams -*- C++ -*-
|
|
|
|
// Copyright (C) 1997-1999 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 2, or (at your option)
|
|
// any later version.
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this library; see the file COPYING. If not, write to the Free
|
|
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
// USA.
|
|
|
|
// As a special exception, you may use this file as part of a free software
|
|
// library without restriction. Specifically, if other files instantiate
|
|
// templates or use macros or inline functions from this file, or you compile
|
|
// this file and link it with other files to produce an executable, this
|
|
// file does not by itself cause the resulting executable to be covered by
|
|
// the GNU General Public License. This exception does not however
|
|
// invalidate any other reasons why the executable file might be covered by
|
|
// the GNU General Public License.
|
|
|
|
//
|
|
// ISO C++ 14882: 27.6.1 Input streams
|
|
//
|
|
|
|
#ifndef _CPP_ISTREAM
|
|
#define _CPP_ISTREAM 1
|
|
|
|
#include <bits/std_ios.h>
|
|
#include <bits/std_limits.h> // For numeric_limits
|
|
|
|
namespace std {
|
|
|
|
// 27.6.1.1 Template class basic_istream
|
|
template<typename _CharT, typename _Traits>
|
|
class basic_istream : virtual public basic_ios<_CharT, _Traits>
|
|
{
|
|
public:
|
|
|
|
// Types (inherited from basic_ios (27.4.4)):
|
|
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;
|
|
|
|
// Non-standard Types:
|
|
typedef basic_streambuf<_CharT, _Traits> __streambuf_type;
|
|
typedef basic_ios<_CharT, _Traits> __ios_type;
|
|
typedef basic_istream<_CharT, _Traits> __istream_type;
|
|
typedef istreambuf_iterator<_CharT> __istreambuf_iter;
|
|
typedef num_get<_CharT, __istreambuf_iter> __numget_type;
|
|
typedef ctype<_CharT> __ctype_type;
|
|
|
|
protected:
|
|
// Data Members:
|
|
streamsize _M_gcount;
|
|
|
|
public:
|
|
// 27.6.1.1.1 Constructor/destructor:
|
|
explicit
|
|
basic_istream(__streambuf_type* __sb)
|
|
{
|
|
this->init(__sb);
|
|
_M_gcount = streamsize(0);
|
|
}
|
|
|
|
virtual
|
|
~basic_istream()
|
|
{
|
|
_M_gcount = streamsize(0);
|
|
_M_fnumget = NULL;
|
|
}
|
|
|
|
// 27.6.1.1.2 Prefix/suffix:
|
|
class sentry;
|
|
friend class sentry;
|
|
|
|
// 27.6.1.2 Formatted input:
|
|
// 27.6.1.2.3 basic_istream::operator>>
|
|
__istream_type&
|
|
operator>>(__istream_type& (*__pf)(__istream_type&));
|
|
|
|
__istream_type&
|
|
operator>>(__ios_type& (*__pf)(__ios_type&));
|
|
|
|
__istream_type&
|
|
operator>>(ios_base& (*__pf)(ios_base&));
|
|
|
|
// 27.6.1.2.2 Arithmetic Extractors
|
|
__istream_type&
|
|
operator>>(bool& __n);
|
|
|
|
__istream_type&
|
|
operator>>(short& __n);
|
|
|
|
__istream_type&
|
|
operator>>(unsigned short& __n);
|
|
|
|
__istream_type&
|
|
operator>>(int& __n);
|
|
|
|
__istream_type&
|
|
operator>>(unsigned int& __n);
|
|
|
|
__istream_type&
|
|
operator>>(long& __n);
|
|
|
|
__istream_type&
|
|
operator>>(unsigned long& __n);
|
|
|
|
#ifdef _GLIBCPP_USE_LONG_LONG
|
|
__istream_type&
|
|
operator>>(long long& __n);
|
|
|
|
__istream_type&
|
|
operator>>(unsigned long long& __n);
|
|
#endif
|
|
|
|
__istream_type&
|
|
operator>>(float& __f);
|
|
|
|
__istream_type&
|
|
operator>>(double& __f);
|
|
|
|
__istream_type&
|
|
operator>>(long double& __f);
|
|
|
|
__istream_type&
|
|
operator>>(void*& __p);
|
|
|
|
__istream_type&
|
|
operator>>(__streambuf_type* __sb);
|
|
|
|
// 27.6.1.3 Unformatted input:
|
|
inline streamsize
|
|
gcount(void) const
|
|
{ return _M_gcount; }
|
|
|
|
int_type
|
|
get(void);
|
|
|
|
__istream_type&
|
|
get(char_type& __c);
|
|
|
|
__istream_type&
|
|
get(char_type* __s, streamsize __n, char_type __delim);
|
|
|
|
inline __istream_type&
|
|
get(char_type* __s, streamsize __n)
|
|
{ return get(__s, __n, this->widen('\n')); }
|
|
|
|
__istream_type&
|
|
get(__streambuf_type& __sb, char_type __delim);
|
|
|
|
inline __istream_type&
|
|
get(__streambuf_type& __sb)
|
|
{ return get(__sb, this->widen('\n')); }
|
|
|
|
__istream_type&
|
|
getline(char_type* __s, streamsize __n, char_type __delim);
|
|
|
|
inline __istream_type&
|
|
getline(char_type* __s, streamsize __n)
|
|
{ return getline(__s, __n, this->widen('\n')); }
|
|
|
|
__istream_type&
|
|
ignore(streamsize __n = 1, int_type __delim = traits_type::eof());
|
|
|
|
int_type
|
|
peek(void);
|
|
|
|
__istream_type&
|
|
read(char_type* __s, streamsize __n);
|
|
|
|
streamsize
|
|
readsome(char_type* __s, streamsize __n);
|
|
|
|
__istream_type&
|
|
putback(char_type __c);
|
|
|
|
__istream_type&
|
|
unget(void);
|
|
|
|
int
|
|
sync(void);
|
|
|
|
pos_type
|
|
tellg(void);
|
|
|
|
__istream_type&
|
|
seekg(pos_type);
|
|
|
|
__istream_type&
|
|
seekg(off_type, ios_base::seekdir);
|
|
|
|
private:
|
|
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
|
|
// Not defined.
|
|
__istream_type&
|
|
operator=(const __istream_type&);
|
|
|
|
basic_istream(const __istream_type&);
|
|
#endif
|
|
};
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
class basic_istream<_CharT, _Traits>::sentry
|
|
{
|
|
public:
|
|
|
|
typedef _Traits traits_type;
|
|
typedef basic_streambuf<_CharT, _Traits> __streambuf_type;
|
|
typedef basic_istream<_CharT, _Traits> __istream_type;
|
|
typedef __istream_type::__ctype_type __ctype_type;
|
|
typedef typename _Traits::int_type __int_type;
|
|
|
|
explicit
|
|
sentry(basic_istream<_CharT, _Traits>& __is, bool __noskipws = false);
|
|
|
|
operator bool() { return _M_ok; }
|
|
|
|
private:
|
|
bool _M_ok;
|
|
};
|
|
|
|
// 27.6.1.2.3 Character extraction templates
|
|
template<typename _CharT, typename _Traits>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c);
|
|
|
|
template<class _Traits>
|
|
basic_istream<char, _Traits>&
|
|
operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
|
|
{ return (__in >> static_cast<char>(__c)); }
|
|
|
|
template<class _Traits>
|
|
basic_istream<char, _Traits>&
|
|
operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
|
|
{ return (__in >> static_cast<char>(__c)); }
|
|
|
|
template<typename _CharT, typename _Traits>
|
|
basic_istream<_CharT, _Traits>&
|
|
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s);
|
|
|
|
template<class _Traits>
|
|
basic_istream<char,_Traits>&
|
|
operator>>(basic_istream<char,_Traits>& __in, unsigned char* __s)
|
|
{ return (__in >> reinterpret_cast<char*>(__s)); }
|
|
|
|
template<class _Traits>
|
|
basic_istream<char,_Traits>&
|
|
operator>>(basic_istream<char,_Traits>& __in, signed char* __s)
|
|
{ return (__in >> reinterpret_cast<char*>(__s)); }
|
|
|
|
// 27.6.1.5 Template class basic_iostream
|
|
template<typename _CharT, typename _Traits>
|
|
class basic_iostream
|
|
: public basic_istream<_CharT, _Traits>,
|
|
public basic_ostream<_CharT, _Traits>
|
|
{
|
|
public:
|
|
|
|
// Non-standard Types:
|
|
typedef basic_istream<_CharT, _Traits> __istream_type;
|
|
typedef basic_ostream<_CharT, _Traits> __ostream_type;
|
|
|
|
explicit
|
|
basic_iostream(basic_streambuf<_CharT, _Traits>* __sb)
|
|
: __istream_type(__sb), __ostream_type(__sb)
|
|
{ }
|
|
|
|
virtual
|
|
~basic_iostream() { }
|
|
};
|
|
|
|
// 27.6.1.4 Standard basic_istream manipulators
|
|
template<typename _CharT, typename _Traits>
|
|
basic_istream<_CharT, _Traits>&
|
|
ws(basic_istream<_CharT, _Traits>& __is);
|
|
|
|
} // namespace std
|
|
|
|
#ifdef _GLIBCPP_NO_TEMPLATE_EXPORT
|
|
# define export
|
|
#ifdef _GLIBCPP_FULLY_COMPLIANT_HEADERS
|
|
# include <bits/istream.tcc>
|
|
#endif
|
|
#endif
|
|
|
|
#endif /* _CPP_ISTREAM */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|