0_0_20399090_12557.cpp:3:1: error: expected unqualified-id before '<' token
<pre name="code" class="html">//题意是中文的 大家都看得懂
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:39:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20399090_12557.cpp:12:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:56:30: error: 'allocator' does not name a type
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:56:39: error: expected '>' before '<' token
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:62:28: error: template argument 3 is invalid
typedef basic_string<char> string;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:62:39: error: invalid type in declaration before ';' token
typedef basic_string<char> string;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:68:31: error: template argument 3 is invalid
typedef basic_string<wchar_t> wstring;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:68:40: error: invalid type in declaration before ';' token
typedef basic_string<wchar_t> wstring;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:78:32: error: template argument 3 is invalid
typedef basic_string<char16_t> u16string;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:78:43: error: invalid type in declaration before ';' token
typedef basic_string<char16_t> u16string;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:81:32: error: template argument 3 is invalid
typedef basic_string<char32_t> u32string;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stringfwd.h:81:43: error: invalid type in declaration before ';' token
typedef basic_string<char32_t> u32string;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:38:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20399090_12557.cpp:12:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:92:24: error: 'allocator' does not name a type
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:92:33: error: expected '>' before '<' token
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:96:23: error: 'allocator' does not name a type
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:96:32: error: expected '>' before '<' token
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:100:23: error: 'allocator' does not name a type
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:100:32: error: expected '>' before '<' token
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:104:23: error: 'allocator' does not name a type
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:104:32: error: expected '>' before '<' token
typename _Alloc = allocator<_CharT> >
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:142:31: error: template argument 3 is invalid
typedef basic_stringbuf<char> stringbuf;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:142:43: error: invalid type in declaration before ';' token
typedef basic_stringbuf<char> stringbuf;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:145:35: error: template argument 3 is invalid
typedef basic_istringstream<char> istringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:145:51: error: invalid type in declaration before ';' token
typedef basic_istringstream<char> istringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:148:35: error: template argument 3 is invalid
typedef basic_ostringstream<char> ostringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:148:51: error: invalid type in declaration before ';' token
typedef basic_ostringstream<char> ostringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:151:34: error: template argument 3 is invalid
typedef basic_stringstream<char> stringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:151:49: error: invalid type in declaration before ';' token
typedef basic_stringstream<char> stringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:182:34: error: template argument 3 is invalid
typedef basic_stringbuf<wchar_t> wstringbuf;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:182:47: error: invalid type in declaration before ';' token
typedef basic_stringbuf<wchar_t> wstringbuf;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:185:38: error: template argument 3 is invalid
typedef basic_istringstream<wchar_t> wistringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:185:55: error: invalid type in declaration before ';' token
typedef basic_istringstream<wchar_t> wistringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:188:38: error: template argument 3 is invalid
typedef basic_ostringstream<wchar_t> wostringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:188:55: error: invalid type in declaration before ';' token
typedef basic_ostringstream<wchar_t> wostringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:191:37: error: template argument 3 is invalid
typedef basic_stringstream<wchar_t> wstringstream;
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:191:53: error: invalid type in declaration before ';' token
typedef basic_stringstream<wchar_t> wstringstream;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:41:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_20399090_12557.cpp:12:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:63:11: error: 'allocator' is not a class template
class allocator<void>
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:64:5: error: explicit specialization of non-template 'std::allocator'
{
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:74:19: error: 'std::allocator' is not a template
{ typedef allocator<_Tp1> other; };
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:92:11: error: 'std::allocator' is not a template type
class allocator: public __allocator_base<_Tp>
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:128:22: error: 'std::allocator' is not a template
operator==(const allocator<_T1>&, const allocator<_T2>&)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:128:45: error: 'std::allocator' is not a template
operator==(const allocator<_T1>&, const allocator<_T2>&)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:133:22: error: 'std::allocator' is not a template
operator==(const allocator<_Tp>&, const allocator<_Tp>&)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/allocator.h:133:45: error: 'std::allocator' is not a template
operator==(const allocator<_Tp>&, const allocator<_Tp>&)
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