/in/foo.cc:1:31: error: stray '#' in program
<span style="font-size:48px;">#include <cstdio>
^
/in/foo.cc:1:1: error: expected unqualified-id before '<' token
<span style="font-size:48px;">#include <cstdio>
^
In file included from /usr/include/c++/6/iosfwd:40:0,
from /usr/include/c++/6/ios:38,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/include/c++/6/bits/postypes.h:98:11: error: 'ptrdiff_t' does not name a type
typedef ptrdiff_t streamsize; // Signed integral type
^~~~~~~~~
In file included from /usr/include/c++/6/exception:172:0,
from /usr/include/c++/6/ios:39,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/include/c++/6/bits/exception_ptr.h:99:30: error: field 'nullptr_t' has incomplete type 'std::__exception_ptr::exception_ptr'
exception_ptr(nullptr_t) noexcept
^
/usr/include/c++/6/bits/exception_ptr.h:79:11: note: definition of 'class std::__exception_ptr::exception_ptr' is not complete until the closing brace
class exception_ptr
^~~~~~~~~~~~~
/usr/include/c++/6/bits/exception_ptr.h:99:30: error: expected ';' at end of member declaration
exception_ptr(nullptr_t) noexcept
^
/usr/include/c++/6/bits/exception_ptr.h:99:32: error: expected unqualified-id before 'noexcept'
exception_ptr(nullptr_t) noexcept
^~~~~~~~
In file included from /usr/include/c++/6/bits/move.h:57:0,
from /usr/include/c++/6/bits/nested_exception.h:40,
from /usr/include/c++/6/exception:173,
from /usr/include/c++/6/ios:39,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/include/c++/6/type_traits:359:31: error: 'std::size_t' has not been declared
template<typename _Tp, std::size_t _Size>
^~~~~~
/usr/include/c++/6/type_traits:360:25: error: '_Size' was not declared in this scope
struct is_array<_Tp[_Size]>
^~~~~
/usr/include/c++/6/type_traits:360:31: error: template argument 1 is invalid
struct is_array<_Tp[_Size]>
^
/usr/include/c++/6/type_traits:558:37: error: 'nullptr_t' is not a member of 'std'
struct __is_null_pointer_helper<std::nullptr_t>
^~~
/usr/include/c++/6/type_traits:558:37: error: 'nullptr_t' is not a member of 'std'
/usr/include/c++/6/type_traits:558:51: error: template argument 1 is invalid
struct __is_null_pointer_helper<std::nullptr_t>
^
/usr/include/c++/6/type_traits:1478:32: error: 'size_t' is not a member of 'std'
: public integral_constant<std::size_t, __alignof__(_Tp)> { };
^~~
/usr/include/c++/6/type_traits:1478:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
from /usr/include/c++/6/cwchar:44,
from /usr/include/c++/6/bits/postypes.h:40,
from /usr/include/c++/6/iosfwd:40,
from /usr/include/c++/6/ios:38,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/lib/gcc/x86_64-linux-gnu/6/include/stddef.h:216:23: note: 'size_t'
typedef __SIZE_TYPE__ size_t;
^~~~~~
In file included from /usr/include/c++/6/bits/move.h:57:0,
from /usr/include/c++/6/bits/nested_exception.h:40,
from /usr/include/c++/6/exception:173,
from /usr/include/c++/6/ios:39,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/include/c++/6/type_traits:1478:32: error: 'size_t' is not a member of 'std'
: public integral_constant<std::size_t, __alignof__(_Tp)> { };
^~~
/usr/include/c++/6/type_traits:1478:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
from /usr/include/c++/6/cwchar:44,
from /usr/include/c++/6/bits/postypes.h:40,
from /usr/include/c++/6/iosfwd:40,
from /usr/include/c++/6/ios:38,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/lib/gcc/x86_64-linux-gnu/6/include/stddef.h:216:23: note: 'size_t'
typedef __SIZE_TYPE__ size_t;
^~~~~~
In file included from /usr/include/c++/6/bits/move.h:57:0,
from /usr/include/c++/6/bits/nested_exception.h:40,
from /usr/include/c++/6/exception:173,
from /usr/include/c++/6/ios:39,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/include/c++/6/type_traits:1478:61: error: template argument 1 is invalid
: public integral_constant<std::size_t, __alignof__(_Tp)> { };
^
/usr/include/c++/6/type_traits:1478:61: note: invalid template non-type parameter
/usr/include/c++/6/type_traits:1483:32: error: 'size_t' is not a member of 'std'
: public integral_constant<std::size_t, 0> { };
^~~
/usr/include/c++/6/type_traits:1483:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
from /usr/include/c++/6/cwchar:44,
from /usr/include/c++/6/bits/postypes.h:40,
from /usr/include/c++/6/iosfwd:40,
from /usr/include/c++/6/ios:38,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/lib/gcc/x86_64-linux-gnu/6/include/stddef.h:216:23: note: 'size_t'
typedef __SIZE_TYPE__ size_t;
^~~~~~
In file included from /usr/include/c++/6/bits/move.h:57:0,
from /usr/include/c++/6/bits/nested_exception.h:40,
from /usr/include/c++/6/exception:173,
from /usr/include/c++/6/ios:39,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/include/c++/6/type_traits:1483:32: error: 'size_t' is not a member of 'std'
: public integral_constant<std::size_t, 0> { };
^~~
/usr/include/c++/6/type_traits:1483:32: note: suggested alternative:
In file included from /usr/include/wchar.h:51:0,
from /usr/include/c++/6/cwchar:44,
from /usr/include/c++/6/bits/postypes.h:40,
from /usr/include/c++/6/iosfwd:40,
from /usr/include/c++/6/ios:38,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/lib/gcc/x86_64-linux-gnu/6/include/stddef.h:216:23: note: 'size_t'
typedef __SIZE_TYPE__ size_t;
^~~~~~
In file included from /usr/include/c++/6/bits/move.h:57:0,
from /usr/include/c++/6/bits/nested_exception.h:40,
from /usr/include/c++/6/exception:173,
from /usr/include/c++/6/ios:39,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:2:
/usr/include/c++/6/type_traits:1483:46: error: template argument 1 is invalid
: public integral_constant<std::size_t, 0> { };
^
/usr/include/c++/6/type_traits:1483:46: note: invalid template non-type parameter
/usr/include/c++/6/type_traits:1485:31: error: 'std::size_