X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Finclude%2Fbits%2Fstreambuf_iterator.h;h=d02b555343aeca117cc67224316f5117abb6f7d5;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=152df9c6e4b993ad91272e2cfdaea31d27df423c;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git
diff --git a/libstdc++-v3/include/bits/streambuf_iterator.h b/libstdc++-v3/include/bits/streambuf_iterator.h
index 152df9c6..d02b5553 100644
--- a/libstdc++-v3/include/bits/streambuf_iterator.h
+++ b/libstdc++-v3/include/bits/streambuf_iterator.h
@@ -1,12 +1,13 @@
// Streambuf iterators
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+// 2006, 2007, 2009
// 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)
+// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
@@ -14,193 +15,378 @@
// 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.
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
-// 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.
-
-// XXX Should specialize copy, find algorithms for streambuf iterators.
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// .
/** @file streambuf_iterator.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
-#ifndef _CPP_BITS_STREAMBUF_ITERATOR_H
-#define _CPP_BITS_STREAMBUF_ITERATOR_H 1
+#ifndef _STREAMBUF_ITERATOR_H
+#define _STREAMBUF_ITERATOR_H 1
#pragma GCC system_header
-namespace std
-{
+#include
+#include
+
+_GLIBCXX_BEGIN_NAMESPACE(std)
+
// 24.5.3 Template class istreambuf_iterator
+ /// Provides input iterator semantics for streambufs.
template
class istreambuf_iterator
: public iterator
+ _CharT*, _CharT&>
{
public:
// Types:
- 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;
+ //@{
+ /// Public typedefs
+ 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;
+ //@}
+
+ template
+ friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
+ ostreambuf_iterator<_CharT2> >::__type
+ copy(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>,
+ ostreambuf_iterator<_CharT2>);
+
+ template
+ friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
+ _CharT2*>::__type
+ __copy_move_a2(istreambuf_iterator<_CharT2>,
+ istreambuf_iterator<_CharT2>, _CharT2*);
+
+ template
+ friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
+ istreambuf_iterator<_CharT2> >::__type
+ find(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>,
+ const _CharT2&);
private:
- // 24.5.3 istreambuf_iterator
- // p 1
+ // 24.5.3 istreambuf_iterator
+ // p 1
// If the end of stream is reached (streambuf_type::sgetc()
// returns traits_type::eof()), the iterator becomes equal to
// the "end of stream" iterator value.
// NB: This implementation assumes the "end of stream" value
// is EOF, or -1.
- mutable streambuf_type* _M_sbuf;
- int_type _M_c;
+ mutable streambuf_type* _M_sbuf;
+ mutable int_type _M_c;
public:
- istreambuf_iterator() throw()
+ /// Construct end of input stream iterator.
+ istreambuf_iterator() throw()
: _M_sbuf(0), _M_c(traits_type::eof()) { }
-
+
+ /// Construct start of input stream iterator.
istreambuf_iterator(istream_type& __s) throw()
: _M_sbuf(__s.rdbuf()), _M_c(traits_type::eof()) { }
+ /// Construct start of streambuf iterator.
istreambuf_iterator(streambuf_type* __s) throw()
: _M_sbuf(__s), _M_c(traits_type::eof()) { }
-
- // NB: The result of operator*() on an end of stream is undefined.
- char_type
+
+ /// Return the current character pointed to by iterator. This returns
+ /// streambuf.sgetc(). It cannot be assigned. NB: The result of
+ /// operator*() on an end of stream is undefined.
+ char_type
operator*() const
- { return traits_type::to_char_type(_M_get()); }
-
- istreambuf_iterator&
+ {
+#ifdef _GLIBCXX_DEBUG_PEDANTIC
+ // Dereferencing a past-the-end istreambuf_iterator is a
+ // libstdc++ extension
+ __glibcxx_requires_cond(!_M_at_eof(),
+ _M_message(__gnu_debug::__msg_deref_istreambuf)
+ ._M_iterator(*this));
+#endif
+ return traits_type::to_char_type(_M_get());
+ }
+
+ /// Advance the iterator. Calls streambuf.sbumpc().
+ istreambuf_iterator&
operator++()
- {
- const int_type __eof = traits_type::eof();
- if (_M_sbuf && traits_type::eq_int_type(_M_sbuf->sbumpc(), __eof))
- _M_sbuf = 0;
- else
- _M_c = __eof;
- return *this;
+ {
+ __glibcxx_requires_cond(!_M_at_eof(),
+ _M_message(__gnu_debug::__msg_inc_istreambuf)
+ ._M_iterator(*this));
+ if (_M_sbuf)
+ {
+ _M_sbuf->sbumpc();
+ _M_c = traits_type::eof();
+ }
+ return *this;
}
+ /// Advance the iterator. Calls streambuf.sbumpc().
istreambuf_iterator
operator++(int)
{
- const int_type __eof = traits_type::eof();
+ __glibcxx_requires_cond(!_M_at_eof(),
+ _M_message(__gnu_debug::__msg_inc_istreambuf)
+ ._M_iterator(*this));
+
istreambuf_iterator __old = *this;
- if (_M_sbuf
- && traits_type::eq_int_type((__old._M_c = _M_sbuf->sbumpc()),
- __eof))
- _M_sbuf = 0;
- else
- _M_c = __eof;
- return __old;
+ if (_M_sbuf)
+ {
+ __old._M_c = _M_sbuf->sbumpc();
+ _M_c = traits_type::eof();
+ }
+ return __old;
}
-#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
// 110 istreambuf_iterator::equal not const
// NB: there is also number 111 (NAD, Future) pending on this function.
- bool
+ /// Return true both iterators are end or both are not end.
+ bool
equal(const istreambuf_iterator& __b) const
- {
- const int_type __eof = traits_type::eof();
- bool __thiseof = traits_type::eq_int_type(_M_get(), __eof);
- bool __beof = traits_type::eq_int_type(__b._M_get(), __eof);
- return (__thiseof && __beof || (!__thiseof && !__beof));
- }
-#endif
+ { return _M_at_eof() == __b._M_at_eof(); }
private:
- int_type
+ int_type
_M_get() const
- {
+ {
const int_type __eof = traits_type::eof();
int_type __ret = __eof;
if (_M_sbuf)
- {
+ {
if (!traits_type::eq_int_type(_M_c, __eof))
__ret = _M_c;
- else
- if (traits_type::eq_int_type((__ret = _M_sbuf->sgetc()), __eof))
- _M_sbuf = 0;
+ else if (!traits_type::eq_int_type((__ret = _M_sbuf->sgetc()),
+ __eof))
+ _M_c = __ret;
+ else
+ _M_sbuf = 0;
}
return __ret;
}
+
+ bool
+ _M_at_eof() const
+ {
+ const int_type __eof = traits_type::eof();
+ return traits_type::eq_int_type(_M_get(), __eof);
+ }
};
template
- inline bool
+ inline bool
operator==(const istreambuf_iterator<_CharT, _Traits>& __a,
const istreambuf_iterator<_CharT, _Traits>& __b)
{ return __a.equal(__b); }
template
- inline bool
+ inline bool
operator!=(const istreambuf_iterator<_CharT, _Traits>& __a,
const istreambuf_iterator<_CharT, _Traits>& __b)
{ return !__a.equal(__b); }
+ /// Provides output iterator semantics for streambufs.
template
class ostreambuf_iterator
: public iterator
{
public:
// Types:
+ //@{
+ /// Public typedefs
typedef _CharT char_type;
typedef _Traits traits_type;
typedef basic_streambuf<_CharT, _Traits> streambuf_type;
typedef basic_ostream<_CharT, _Traits> ostream_type;
+ //@}
+
+ template
+ friend typename __gnu_cxx::__enable_if<__is_char<_CharT2>::__value,
+ ostreambuf_iterator<_CharT2> >::__type
+ copy(istreambuf_iterator<_CharT2>, istreambuf_iterator<_CharT2>,
+ ostreambuf_iterator<_CharT2>);
private:
- streambuf_type* _M_sbuf;
- bool _M_failed;
+ streambuf_type* _M_sbuf;
+ bool _M_failed;
public:
- inline
+ /// Construct output iterator from ostream.
ostreambuf_iterator(ostream_type& __s) throw ()
: _M_sbuf(__s.rdbuf()), _M_failed(!_M_sbuf) { }
-
+
+ /// Construct output iterator from streambuf.
ostreambuf_iterator(streambuf_type* __s) throw ()
: _M_sbuf(__s), _M_failed(!_M_sbuf) { }
- ostreambuf_iterator&
- operator=(_CharT __c);
+ /// Write character to streambuf. Calls streambuf.sputc().
+ ostreambuf_iterator&
+ operator=(_CharT __c)
+ {
+ if (!_M_failed &&
+ _Traits::eq_int_type(_M_sbuf->sputc(__c), _Traits::eof()))
+ _M_failed = true;
+ return *this;
+ }
- ostreambuf_iterator&
- operator*() throw()
+ /// Return *this.
+ ostreambuf_iterator&
+ operator*()
{ return *this; }
- ostreambuf_iterator&
- operator++(int) throw()
+ /// Return *this.
+ ostreambuf_iterator&
+ operator++(int)
{ return *this; }
- ostreambuf_iterator&
- operator++() throw()
+ /// Return *this.
+ ostreambuf_iterator&
+ operator++()
{ return *this; }
- bool
+ /// Return true if previous operator=() failed.
+ bool
failed() const throw()
{ return _M_failed; }
+
+ ostreambuf_iterator&
+ _M_put(const _CharT* __ws, streamsize __len)
+ {
+ if (__builtin_expect(!_M_failed, true)
+ && __builtin_expect(this->_M_sbuf->sputn(__ws, __len) != __len,
+ false))
+ _M_failed = true;
+ return *this;
+ }
};
- template
- inline ostreambuf_iterator<_CharT, _Traits>&
- ostreambuf_iterator<_CharT, _Traits>::operator=(_CharT __c)
+ // Overloads for streambuf iterators.
+ template
+ typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
+ ostreambuf_iterator<_CharT> >::__type
+ copy(istreambuf_iterator<_CharT> __first,
+ istreambuf_iterator<_CharT> __last,
+ ostreambuf_iterator<_CharT> __result)
{
- if (!_M_failed &&
- _Traits::eq_int_type(_M_sbuf->sputc(__c), _Traits::eof()))
- _M_failed = true;
- return *this;
+ if (__first._M_sbuf && !__last._M_sbuf && !__result._M_failed)
+ {
+ bool __ineof;
+ __copy_streambufs_eof(__first._M_sbuf, __result._M_sbuf, __ineof);
+ if (!__ineof)
+ __result._M_failed = true;
+ }
+ return __result;
}
-} // namespace std
+
+ template
+ typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
+ ostreambuf_iterator<_CharT> >::__type
+ __copy_move_a2(_CharT* __first, _CharT* __last,
+ ostreambuf_iterator<_CharT> __result)
+ {
+ const streamsize __num = __last - __first;
+ if (__num > 0)
+ __result._M_put(__first, __num);
+ return __result;
+ }
+
+ template
+ typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
+ ostreambuf_iterator<_CharT> >::__type
+ __copy_move_a2(const _CharT* __first, const _CharT* __last,
+ ostreambuf_iterator<_CharT> __result)
+ {
+ const streamsize __num = __last - __first;
+ if (__num > 0)
+ __result._M_put(__first, __num);
+ return __result;
+ }
+
+ template
+ typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
+ _CharT*>::__type
+ __copy_move_a2(istreambuf_iterator<_CharT> __first,
+ istreambuf_iterator<_CharT> __last, _CharT* __result)
+ {
+ typedef istreambuf_iterator<_CharT> __is_iterator_type;
+ typedef typename __is_iterator_type::traits_type traits_type;
+ typedef typename __is_iterator_type::streambuf_type streambuf_type;
+ typedef typename traits_type::int_type int_type;
+
+ if (__first._M_sbuf && !__last._M_sbuf)
+ {
+ streambuf_type* __sb = __first._M_sbuf;
+ int_type __c = __sb->sgetc();
+ while (!traits_type::eq_int_type(__c, traits_type::eof()))
+ {
+ const streamsize __n = __sb->egptr() - __sb->gptr();
+ if (__n > 1)
+ {
+ traits_type::copy(__result, __sb->gptr(), __n);
+ __sb->gbump(__n);
+ __result += __n;
+ __c = __sb->underflow();
+ }
+ else
+ {
+ *__result++ = traits_type::to_char_type(__c);
+ __c = __sb->snextc();
+ }
+ }
+ }
+ return __result;
+ }
+
+ template
+ typename __gnu_cxx::__enable_if<__is_char<_CharT>::__value,
+ istreambuf_iterator<_CharT> >::__type
+ find(istreambuf_iterator<_CharT> __first,
+ istreambuf_iterator<_CharT> __last, const _CharT& __val)
+ {
+ typedef istreambuf_iterator<_CharT> __is_iterator_type;
+ typedef typename __is_iterator_type::traits_type traits_type;
+ typedef typename __is_iterator_type::streambuf_type streambuf_type;
+ typedef typename traits_type::int_type int_type;
+
+ if (__first._M_sbuf && !__last._M_sbuf)
+ {
+ const int_type __ival = traits_type::to_int_type(__val);
+ streambuf_type* __sb = __first._M_sbuf;
+ int_type __c = __sb->sgetc();
+ while (!traits_type::eq_int_type(__c, traits_type::eof())
+ && !traits_type::eq_int_type(__c, __ival))
+ {
+ streamsize __n = __sb->egptr() - __sb->gptr();
+ if (__n > 1)
+ {
+ const _CharT* __p = traits_type::find(__sb->gptr(),
+ __n, __val);
+ if (__p)
+ __n = __p - __sb->gptr();
+ __sb->gbump(__n);
+ __c = __sb->sgetc();
+ }
+ else
+ __c = __sb->snextc();
+ }
+
+ if (!traits_type::eq_int_type(__c, traits_type::eof()))
+ __first._M_c = __c;
+ else
+ __first._M_sbuf = 0;
+ }
+ return __first;
+ }
+
+_GLIBCXX_END_NAMESPACE
+
#endif