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PR libstdc++/33979 (partial)

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2008-08-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/33979 (partial)
	* include/bits/postypes.h (u16streampos, u32streampos): Add.
	* include/bits/char_traits.h (char_traits<char16_t>,
	char_traits<char32_t>): Add.
	* include/bits/stringfwd.h (u16string, u32string): Add.
	* include/ext/vstring_fwd.h: Add typedefs for char16_t/char32_t.
	* testsuite/21_strings/char_traits/requirements/char32_t/typedefs.cc:
	New.
	* testsuite/21_strings/char_traits/requirements/
	explicit_instantiation/short/1.cc: Likewise.
	* testsuite/21_strings/char_traits/requirements/
	explicit_instantiation/char32_t/1.cc: Likewise.
	* testsuite/21_strings/char_traits/requirements/
	explicit_instantiation/wchar_t/1.cc: Likewise.
	* testsuite/21_strings/char_traits/requirements/
	explicit_instantiation/char16_t/1.cc: Likewise.
	* testsuite/21_strings/char_traits/requirements/
	explicit_instantiation/char/1.cc: Likewise.
	* testsuite/21_strings/char_traits/requirements/char16_t/typedefs.cc:
	Likewise.
	* testsuite/21_strings/basic_string/requirements/
	explicit_instantiation/char32_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string/requirements/
	explicit_instantiation/wchar_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string/requirements/
	explicit_instantiation/char16_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string/requirements/
	explicit_instantiation/char/1.cc: Likewise.
	* testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
	* testsuite/ext/vstring/requirements/explicit_instantiation/
	char32_t/1.cc: Likewise.
	* testsuite/ext/vstring/requirements/explicit_instantiation/
	char16_t/1.cc: Likewise.

From-SVN: r139339
This commit is contained in:
Paolo Carlini 2008-08-20 19:29:54 +00:00 committed by Paolo Carlini
parent 05cee290af
commit 5e44d591c8
19 changed files with 674 additions and 3 deletions
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36
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,39 @@
2008-08-20 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/33979 (partial)
* include/bits/postypes.h (u16streampos, u32streampos): Add.
* include/bits/char_traits.h (char_traits<char16_t>,
char_traits<char32_t>): Add.
* include/bits/stringfwd.h (u16string, u32string): Add.
* include/ext/vstring_fwd.h: Add typedefs for char16_t/char32_t.
* testsuite/21_strings/char_traits/requirements/char32_t/typedefs.cc:
New.
* testsuite/21_strings/char_traits/requirements/
explicit_instantiation/short/1.cc: Likewise.
* testsuite/21_strings/char_traits/requirements/
explicit_instantiation/char32_t/1.cc: Likewise.
* testsuite/21_strings/char_traits/requirements/
explicit_instantiation/wchar_t/1.cc: Likewise.
* testsuite/21_strings/char_traits/requirements/
explicit_instantiation/char16_t/1.cc: Likewise.
* testsuite/21_strings/char_traits/requirements/
explicit_instantiation/char/1.cc: Likewise.
* testsuite/21_strings/char_traits/requirements/char16_t/typedefs.cc:
Likewise.
* testsuite/21_strings/basic_string/requirements/
explicit_instantiation/char32_t/1.cc: Likewise.
* testsuite/21_strings/basic_string/requirements/
explicit_instantiation/wchar_t/1.cc: Likewise.
* testsuite/21_strings/basic_string/requirements/
explicit_instantiation/char16_t/1.cc: Likewise.
* testsuite/21_strings/basic_string/requirements/
explicit_instantiation/char/1.cc: Likewise.
* testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
* testsuite/ext/vstring/requirements/explicit_instantiation/
char32_t/1.cc: Likewise.
* testsuite/ext/vstring/requirements/explicit_instantiation/
char16_t/1.cc: Likewise.
2008-08-18 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/37149

191
libstdc++-v3/include/bits/char_traits.h
View File

@ -374,6 +374,195 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
_GLIBCXX_END_NAMESPACE
#if (defined(__GXX_EXPERIMENTAL_CXX0X__) \
&& defined(_GLIBCXX_USE_C99_STDINT_TR1))
#include <cstdint>
_GLIBCXX_BEGIN_NAMESPACE(std)
template<>
struct char_traits<char16_t>
{
typedef char16_t char_type;
typedef uint_least16_t int_type;
typedef streamoff off_type;
typedef u16streampos pos_type;
typedef mbstate_t state_type;
static void
assign(char_type& __c1, const char_type& __c2)
{ __c1 = __c2; }
static bool
eq(const char_type& __c1, const char_type& __c2)
{ return __c1 == __c2; }
static bool
lt(const char_type& __c1, const char_type& __c2)
{ return __c1 < __c2; }
static int
compare(const char_type* __s1, const char_type* __s2, size_t __n)
{
for (size_t __i = 0; __i < __n; ++__i)
if (lt(__s1[__i], __s2[__i]))
return -1;
else if (lt(__s2[__i], __s1[__i]))
return 1;
return 0;
}
static size_t
length(const char_type* __s)
{
size_t __i = 0;
while (!eq(__s[__i], char_type()))
++__i;
return __i;
}
static const char_type*
find(const char_type* __s, size_t __n, const char_type& __a)
{
for (size_t __i = 0; __i < __n; ++__i)
if (eq(__s[__i], __a))
return __s + __i;
return 0;
}
static char_type*
move(char_type* __s1, const char_type* __s2, size_t __n)
{
return (static_cast<char_type*>
(__builtin_memmove(__s1, __s2, __n * sizeof(char_type))));
}
static char_type*
copy(char_type* __s1, const char_type* __s2, size_t __n)
{
return (static_cast<char_type*>
(__builtin_memcpy(__s1, __s2, __n * sizeof(char_type))));
}
static char_type*
assign(char_type* __s, size_t __n, char_type __a)
{
std::fill_n(__s, __n, __a);
return __s;
}
static char_type
to_char_type(const int_type& __c) { return char_type(__c); }
static int_type
to_int_type(const char_type& __c) { return int_type(__c); }
static bool
eq_int_type(const int_type& __c1, const int_type& __c2)
{ return __c1 == __c2; }
static int_type
eof() { return static_cast<int_type>(-1); }
static int_type
not_eof(const int_type& __c)
{ return eq_int_type(__c, eof()) ? 0 : __c; }
};
template<>
struct char_traits<char32_t>
{
typedef char32_t char_type;
typedef uint_least32_t int_type;
typedef streamoff off_type;
typedef u32streampos pos_type;
typedef mbstate_t state_type;
static void
assign(char_type& __c1, const char_type& __c2)
{ __c1 = __c2; }
static bool
eq(const char_type& __c1, const char_type& __c2)
{ return __c1 == __c2; }
static bool
lt(const char_type& __c1, const char_type& __c2)
{ return __c1 < __c2; }
static int
compare(const char_type* __s1, const char_type* __s2, size_t __n)
{
for (size_t __i = 0; __i < __n; ++__i)
if (lt(__s1[__i], __s2[__i]))
return -1;
else if (lt(__s2[__i], __s1[__i]))
return 1;
return 0;
}
static size_t
length(const char_type* __s)
{
size_t __i = 0;
while (!eq(__s[__i], char_type()))
++__i;
return __i;
}
static const char_type*
find(const char_type* __s, size_t __n, const char_type& __a)
{
for (size_t __i = 0; __i < __n; ++__i)
if (eq(__s[__i], __a))
return __s + __i;
return 0;
}
static char_type*
move(char_type* __s1, const char_type* __s2, size_t __n)
{
return (static_cast<char_type*>
(__builtin_memmove(__s1, __s2, __n * sizeof(char_type))));
}
static char_type*
copy(char_type* __s1, const char_type* __s2, size_t __n)
{
return (static_cast<char_type*>
(__builtin_memcpy(__s1, __s2, __n * sizeof(char_type))));
}
static char_type*
assign(char_type* __s, size_t __n, char_type __a)
{
std::fill_n(__s, __n, __a);
return __s;
}
static char_type
to_char_type(const int_type& __c) { return char_type(__c); }
static int_type
to_int_type(const char_type& __c) { return int_type(__c); }
static bool
eq_int_type(const int_type& __c1, const int_type& __c2)
{ return __c1 == __c2; }
static int_type
eof() { return static_cast<int_type>(-1); }
static int_type
not_eof(const int_type& __c)
{ return eq_int_type(__c, eof()) ? 0 : __c; }
};
_GLIBCXX_END_NAMESPACE
#endif
#undef _CHAR_TRAITS_EOF
#endif
#endif // _CHAR_TRAITS_H

7
libstdc++-v3/include/bits/postypes.h
View File

@ -222,6 +222,13 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
/// File position for wchar_t streams.
typedef fpos<mbstate_t> wstreampos;
#ifdef __GXX_EXPERIMENTAL_CXX0X__
/// File position for char16_t streams.
typedef fpos<mbstate_t> u16streampos;
/// File position for char32_t streams.
typedef fpos<mbstate_t> u32streampos;
#endif
_GLIBCXX_END_NAMESPACE
#endif

14
libstdc++-v3/include/bits/stringfwd.h
View File

@ -1,6 +1,7 @@
// String support -*- C++ -*-
// Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
// 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
@ -65,6 +66,17 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
typedef basic_string<wchar_t> wstring;
#endif
#if (defined(__GXX_EXPERIMENTAL_CXX0X__) \
&& defined(_GLIBCXX_USE_C99_STDINT_TR1))
template<> struct char_traits<char16_t>;
template<> struct char_traits<char32_t>;
typedef basic_string<char16_t> u16string;
typedef basic_string<char32_t> u32string;
#endif
_GLIBCXX_END_NAMESPACE
#endif // _STRINGFWD_H

19
libstdc++-v3/include/ext/vstring_fwd.h
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@ -1,6 +1,6 @@
// Versatile string forward -*- C++ -*-
// Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
// Copyright (C) 2005, 2006, 2007, 2008 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
@ -70,6 +70,23 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
std::allocator<wchar_t>, __rc_string_base> __wrc_string;
#endif
#if (defined(__GXX_EXPERIMENTAL_CXX0X__) \
&& defined(_GLIBCXX_USE_C99_STDINT_TR1))
typedef __versa_string<char16_t> __u16vstring;
typedef __u16vstring __u16sso_string;
typedef
__versa_string<char16_t, std::char_traits<char16_t>,
std::allocator<char16_t>, __rc_string_base> __u16rc_string;
typedef __versa_string<char32_t> __u32vstring;
typedef __u32vstring __u32sso_string;
typedef
__versa_string<char32_t, std::char_traits<char32_t>,
std::allocator<char32_t>, __rc_string_base> __u32rc_string;
#endif
_GLIBCXX_END_NAMESPACE
#endif /* _VSTRING_FWD_H */

23
libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char/1.cc Normal file
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@ -0,0 +1,23 @@
// { dg-do compile }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::basic_string<char>;

25
libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t/1.cc Normal file
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@ -0,0 +1,25 @@
// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::basic_string<char16_t>;

25
libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t/1.cc Normal file
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@ -0,0 +1,25 @@
// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::basic_string<char32_t>;

23
libstdc++-v3/testsuite/21_strings/basic_string/requirements/explicit_instantiation/wchar_t/1.cc Normal file
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@ -0,0 +1,23 @@
// { dg-do compile }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::basic_string<wchar_t>;

41
libstdc++-v3/testsuite/21_strings/char_traits/requirements/char16_t/typedefs.cc Normal file
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@ -0,0 +1,41 @@
// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
#include <cstdint>
int main()
{
// Check for required typedefs.
typedef std::char_traits<char16_t> test_type;
typedef test_type::char_type char_type;
typedef test_type::int_type int_type;
typedef test_type::off_type off_type;
typedef test_type::pos_type pos_type;
typedef test_type::state_type state_type;
// char_traits<char16_t>::int_type == uint_least16_t
test_type::int_type* p = 0;
std::uint_least16_t* q __attribute__((unused)) = p;
return 0;
}

41
libstdc++-v3/testsuite/21_strings/char_traits/requirements/char32_t/typedefs.cc Normal file
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@ -0,0 +1,41 @@
// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
#include <cstdint>
int main()
{
// Check for required typedefs.
typedef std::char_traits<char32_t> test_type;
typedef test_type::char_type char_type;
typedef test_type::int_type int_type;
typedef test_type::off_type off_type;
typedef test_type::pos_type pos_type;
typedef test_type::state_type state_type;
// char_traits<char16_t>::int_type == uint_least32_t
test_type::int_type* p = 0;
std::uint_least32_t* q __attribute__((unused)) = p;
return 0;
}

23
libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char/1.cc Normal file
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@ -0,0 +1,23 @@
// { dg-do compile }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::char_traits<char>;

25
libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t/1.cc Normal file
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@ -0,0 +1,25 @@
// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::char_traits<char16_t>;

25
libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t/1.cc Normal file
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@ -0,0 +1,25 @@
// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::char_traits<char32_t>;

23
libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/short/1.cc Normal file
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@ -0,0 +1,23 @@
// { dg-do compile }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::char_traits<short>;

23
libstdc++-v3/testsuite/21_strings/char_traits/requirements/explicit_instantiation/wchar_t/1.cc Normal file
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@ -0,0 +1,23 @@
// { dg-do compile }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor,
// Boston, MA 02110-1301, USA.
#include <string>
template class std::char_traits<wchar_t>;

29
libstdc++-v3/testsuite/21_strings/headers/string/types_std_c++0x.cc Normal file
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@ -0,0 +1,29 @@
// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
#include <string>
namespace gnu
{
typedef std::u16string t3;
typedef std::u32string t4;
}

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// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// 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.
// This file tests explicit instantiation of __versa_string
#include <ext/vstring.h>
template class __gnu_cxx::__versa_string<char16_t, std::char_traits<char16_t>,
std::allocator<char16_t>,
__gnu_cxx::__sso_string_base>;
template class __gnu_cxx::__versa_string<char16_t, std::char_traits<char16_t>,
std::allocator<char16_t>,
__gnu_cxx::__rc_string_base>;

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// { dg-do compile }
// { dg-options "-std=gnu++0x" }
// { dg-require-cstdint "" }
// Copyright (C) 2008 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// 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.
// This file tests explicit instantiation of __versa_string
#include <ext/vstring.h>
template class __gnu_cxx::__versa_string<char32_t, std::char_traits<char32_t>,
std::allocator<char32_t>,
__gnu_cxx::__sso_string_base>;
template class __gnu_cxx::__versa_string<char32_t, std::char_traits<char32_t>,
std::allocator<char32_t>,
__gnu_cxx::__rc_string_base>;