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verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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if you have obtained the source via the command 'git clone',
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1 files changed, 308 insertions, 0 deletions

diff --git a/libstdc++-v3/config/locale/gnu/codecvt_members.cc b/libstdc++-v3/config/locale/gnu/codecvt_members.cc
new file mode 100644
index 000000000..a1029f09a
--- /dev/null
+++ b/libstdc++-v3/config/locale/gnu/codecvt_members.cc
@@ -0,0 +1,308 @@
+// std::codecvt implementation details, GNU version -*- C++ -*-
+
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010
+// 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 3, 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.
+
+// 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.
+
+// 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
+// <http://www.gnu.org/licenses/>.
+
+//
+// ISO C++ 14882: 22.2.1.5 - Template class codecvt
+//
+
+// Written by Benjamin Kosnik <bkoz@redhat.com>
+
+#include <locale>
+#include <cstdlib>  // For MB_CUR_MAX
+#include <climits>  // For MB_LEN_MAX
+#include <bits/c++locale_internal.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  // Specializations.
+#ifdef _GLIBCXX_USE_WCHAR_T
+  codecvt_base::result
+  codecvt<wchar_t, char, mbstate_t>::
+  do_out(state_type& __state, const intern_type* __from, 
+	 const intern_type* __from_end, const intern_type*& __from_next,
+	 extern_type* __to, extern_type* __to_end,
+	 extern_type*& __to_next) const
+  {
+    result __ret = ok;
+    state_type __tmp_state(__state);
+
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __c_locale __old = __uselocale(_M_c_locale_codecvt);
+#endif
+
+    // wcsnrtombs is *very* fast but stops if encounters NUL characters:
+    // in case we fall back to wcrtomb and then continue, in a loop.
+    // NB: wcsnrtombs is a GNU extension
+    for (__from_next = __from, __to_next = __to;
+	 __from_next < __from_end && __to_next < __to_end
+	 && __ret == ok;)
+      {
+	const intern_type* __from_chunk_end = wmemchr(__from_next, L'\0',
+						      __from_end - __from_next);
+	if (!__from_chunk_end)
+	  __from_chunk_end = __from_end;
+
+	__from = __from_next;
+	const size_t __conv = wcsnrtombs(__to_next, &__from_next,
+					 __from_chunk_end - __from_next,
+					 __to_end - __to_next, &__state);
+	if (__conv == static_cast<size_t>(-1))
+	  {
+	    // In case of error, in order to stop at the exact place we
+	    // have to start again from the beginning with a series of
+	    // wcrtomb.
+	    for (; __from < __from_next; ++__from)
+	      __to_next += wcrtomb(__to_next, *__from, &__tmp_state);
+	    __state = __tmp_state;
+	    __ret = error;
+	  }
+	else if (__from_next && __from_next < __from_chunk_end)
+	  {
+	    __to_next += __conv;
+	    __ret = partial;
+	  }
+	else
+	  {
+	    __from_next = __from_chunk_end;
+	    __to_next += __conv;
+	  }
+
+	if (__from_next < __from_end && __ret == ok)
+	  {
+	    extern_type __buf[MB_LEN_MAX];
+	    __tmp_state = __state;
+	    const size_t __conv2 = wcrtomb(__buf, *__from_next, &__tmp_state);
+	    if (__conv2 > static_cast<size_t>(__to_end - __to_next))
+	      __ret = partial;
+	    else
+	      {
+		memcpy(__to_next, __buf, __conv2);
+		__state = __tmp_state;
+		__to_next += __conv2;
+		++__from_next;
+	      }
+	  }
+      }
+
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __uselocale(__old);
+#endif
+
+    return __ret; 
+  }
+  
+  codecvt_base::result
+  codecvt<wchar_t, char, mbstate_t>::
+  do_in(state_type& __state, const extern_type* __from, 
+	const extern_type* __from_end, const extern_type*& __from_next,
+	intern_type* __to, intern_type* __to_end,
+	intern_type*& __to_next) const
+  {
+    result __ret = ok;
+    state_type __tmp_state(__state);
+
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __c_locale __old = __uselocale(_M_c_locale_codecvt);
+#endif
+
+    // mbsnrtowcs is *very* fast but stops if encounters NUL characters:
+    // in case we store a L'\0' and then continue, in a loop.
+    // NB: mbsnrtowcs is a GNU extension
+    for (__from_next = __from, __to_next = __to;
+	 __from_next < __from_end && __to_next < __to_end
+	 && __ret == ok;)
+      {
+	const extern_type* __from_chunk_end;
+	__from_chunk_end = static_cast<const extern_type*>(memchr(__from_next, '\0',
+								  __from_end
+								  - __from_next));
+	if (!__from_chunk_end)
+	  __from_chunk_end = __from_end;
+
+	__from = __from_next;
+	size_t __conv = mbsnrtowcs(__to_next, &__from_next,
+				   __from_chunk_end - __from_next,
+				   __to_end - __to_next, &__state);
+	if (__conv == static_cast<size_t>(-1))
+	  {
+	    // In case of error, in order to stop at the exact place we
+	    // have to start again from the beginning with a series of
+	    // mbrtowc.
+	    for (;; ++__to_next, __from += __conv)
+	      {
+		__conv = mbrtowc(__to_next, __from, __from_end - __from,
+				 &__tmp_state);
+		if (__conv == static_cast<size_t>(-1)
+		    || __conv == static_cast<size_t>(-2))
+		  break;
+	      }
+	    __from_next = __from;
+	    __state = __tmp_state;	    
+	    __ret = error;
+	  }
+	else if (__from_next && __from_next < __from_chunk_end)
+	  {
+	    // It is unclear what to return in this case (see DR 382). 
+	    __to_next += __conv;
+	    __ret = partial;
+	  }
+	else
+	  {
+	    __from_next = __from_chunk_end;
+	    __to_next += __conv;
+	  }
+
+	if (__from_next < __from_end && __ret == ok)
+	  {
+	    if (__to_next < __to_end)
+	      {
+		// XXX Probably wrong for stateful encodings
+		__tmp_state = __state;		
+		++__from_next;
+		*__to_next++ = L'\0';
+	      }
+	    else
+	      __ret = partial;
+	  }
+      }
+
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __uselocale(__old);
+#endif
+
+    return __ret; 
+  }
+
+  int 
+  codecvt<wchar_t, char, mbstate_t>::
+  do_encoding() const throw()
+  {
+    // XXX This implementation assumes that the encoding is
+    // stateless and is either single-byte or variable-width.
+    int __ret = 0;
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __c_locale __old = __uselocale(_M_c_locale_codecvt);
+#endif
+    if (MB_CUR_MAX == 1)
+      __ret = 1;
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __uselocale(__old);
+#endif
+    return __ret;
+  }  
+
+  int 
+  codecvt<wchar_t, char, mbstate_t>::
+  do_max_length() const throw()
+  {
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __c_locale __old = __uselocale(_M_c_locale_codecvt);
+#endif
+    // XXX Probably wrong for stateful encodings.
+    int __ret = MB_CUR_MAX;
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __uselocale(__old);
+#endif
+    return __ret;
+  }
+  
+  int 
+  codecvt<wchar_t, char, mbstate_t>::
+  do_length(state_type& __state, const extern_type* __from,
+	    const extern_type* __end, size_t __max) const
+  {
+    int __ret = 0;
+    state_type __tmp_state(__state);
+
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __c_locale __old = __uselocale(_M_c_locale_codecvt);
+#endif
+
+    // mbsnrtowcs is *very* fast but stops if encounters NUL characters:
+    // in case we advance past it and then continue, in a loop.
+    // NB: mbsnrtowcs is a GNU extension
+  
+    // A dummy internal buffer is needed in order for mbsnrtocws to consider
+    // its fourth parameter (it wouldn't with NULL as first parameter).
+    wchar_t* __to = static_cast<wchar_t*>(__builtin_alloca(sizeof(wchar_t) 
+							   * __max));
+    while (__from < __end && __max)
+      {
+	const extern_type* __from_chunk_end;
+	__from_chunk_end = static_cast<const extern_type*>(memchr(__from, '\0',
+								  __end
+								  - __from));
+	if (!__from_chunk_end)
+	  __from_chunk_end = __end;
+
+	const extern_type* __tmp_from = __from;
+	size_t __conv = mbsnrtowcs(__to, &__from,
+				   __from_chunk_end - __from,
+				   __max, &__state);
+	if (__conv == static_cast<size_t>(-1))
+	  {
+	    // In case of error, in order to stop at the exact place we
+	    // have to start again from the beginning with a series of
+	    // mbrtowc.
+	    for (__from = __tmp_from;; __from += __conv)
+	      {
+		__conv = mbrtowc(0, __from, __end - __from,
+				 &__tmp_state);
+		if (__conv == static_cast<size_t>(-1)
+		    || __conv == static_cast<size_t>(-2))
+		  break;
+	      }
+	    __state = __tmp_state;
+	    __ret += __from - __tmp_from;
+	    break;
+	  }
+	if (!__from)
+	  __from = __from_chunk_end;
+	
+	__ret += __from - __tmp_from;
+	__max -= __conv;
+
+	if (__from < __end && __max)
+	  {
+	    // XXX Probably wrong for stateful encodings
+	    __tmp_state = __state;
+	    ++__from;
+	    ++__ret;
+	    --__max;
+	  }
+      }
+
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __uselocale(__old);
+#endif
+
+    return __ret; 
+  }
+#endif
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace