foo.cc:1:1: error: stray '##' in program
1 | ##include<iostream>
| ^~
foo.cc:1:3: error: 'include' does not name a type
1 | ##include<iostream>
| ^~~~~~~
In file included from /usr/include/c++/9/bits/move.h:55,
from /usr/include/c++/9/bits/stl_pair.h:59,
from /usr/include/c++/9/utility:70,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/type_traits:361:31: error: 'std::size_t' has not been declared
361 | template<typename _Tp, std::size_t _Size>
| ^~~~~~
/usr/include/c++/9/type_traits:362:25: error: '_Size' was not declared in this scope
362 | struct is_array<_Tp[_Size]>
| ^~~~~
/usr/include/c++/9/type_traits:362:31: error: template argument 1 is invalid
362 | struct is_array<_Tp[_Size]>
| ^
/usr/include/c++/9/type_traits:560:42: error: 'nullptr_t' is not a member of 'std'
560 | struct __is_null_pointer_helper<std::nullptr_t>
| ^~~~~~~~~
/usr/include/c++/9/type_traits:560:42: error: 'nullptr_t' is not a member of 'std'
/usr/include/c++/9/type_traits:560:51: error: template argument 1 is invalid
560 | struct __is_null_pointer_helper<std::nullptr_t>
| ^
/usr/include/c++/9/type_traits:949:26: error: 'size_t' has not been declared
949 | template<typename _Tp, size_t _Num>
| ^~~~~~
/usr/include/c++/9/type_traits:950:49: error: '_Num' was not declared in this scope
950 | struct __is_nt_constructible_impl<true, _Tp[_Num]>
| ^~~~
/usr/include/c++/9/type_traits:950:54: error: template argument 2 is invalid
950 | struct __is_nt_constructible_impl<true, _Tp[_Num]>
| ^
/usr/include/c++/9/type_traits:1246:37: error: 'size_t' is not a member of 'std'
1246 | : public integral_constant<std::size_t, alignof(_Tp)> { };
| ^~~~~~
/usr/include/c++/9/type_traits:1246:37: error: 'size_t' is not a member of 'std'
/usr/include/c++/9/type_traits:1246:57: error: template argument 1 is invalid
1246 | : public integral_constant<std::size_t, alignof(_Tp)> { };
| ^
/usr/include/c++/9/type_traits:1246:57: note: invalid template non-type parameter
/usr/include/c++/9/type_traits:1251:37: error: 'size_t' is not a member of 'std'
1251 | : public integral_constant<std::size_t, 0> { };
| ^~~~~~
/usr/include/c++/9/type_traits:1251:37: error: 'size_t' is not a member of 'std'
/usr/include/c++/9/type_traits:1251:46: error: template argument 1 is invalid
1251 | : public integral_constant<std::size_t, 0> { };
| ^
/usr/include/c++/9/type_traits:1251:46: note: invalid template non-type parameter
/usr/include/c++/9/type_traits:1253:31: error: 'std::size_t' has not been declared
1253 | template<typename _Tp, std::size_t _Size>
| ^~~~~~
/usr/include/c++/9/type_traits:1254:21: error: '_Size' was not declared in this scope
1254 | struct rank<_Tp[_Size]>
| ^~~~~
/usr/include/c++/9/type_traits:1254:27: error: template argument 1 is invalid
1254 | struct rank<_Tp[_Size]>
| ^
/usr/include/c++/9/type_traits:1255:37: error: 'size_t' is not a member of 'std'
1255 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^~~~~~
/usr/include/c++/9/type_traits:1255:37: error: 'size_t' is not a member of 'std'
/usr/include/c++/9/type_traits:1255:65: error: template argument 1 is invalid
1255 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^
/usr/include/c++/9/type_traits:1255:65: note: invalid template non-type parameter
/usr/include/c++/9/type_traits:1259:37: error: 'size_t' is not a member of 'std'
1259 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^~~~~~
/usr/include/c++/9/type_traits:1259:37: error: 'size_t' is not a member of 'std'
/usr/include/c++/9/type_traits:1259:65: error: template argument 1 is invalid
1259 | : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
| ^
/usr/include/c++/9/type_traits:1259:65: note: invalid template non-type parameter
/usr/include/c++/9/type_traits:1264:37: error: 'size_t' is not a member of 'std'
1264 | : public integral_constant<std::size_t, 0> { };
| ^~~~~~
/usr/include/c++/9/type_traits:1264:37: error: 'size_t' is not a member of 'std'
/usr/include/c++/9/type_traits:1264:46: error: template argument 1 is invalid
1264 | : public integral_constant<std::size_t, 0> { };
| ^
/usr/include/c++/9/type_traits:1264:46: note: invalid template non-type parameter
/usr/include/c++/9/type_traits:1266:47: error: 'std::size_t' has not been declared
1266 | template<typename _Tp, unsigned _Uint, std::size_t _Size>
| ^~~~~~
/usr/include/c++/9/type_traits:1267:23: error: '_Size' was not declared in this scope
1267 | struct extent<_Tp[_Size], _Uint>
| ^~~~~
/usr/include/c++/9/type_traits:1267:36: error: template argument 1 is invalid
1267 | struct extent<_Tp[_Size], _Uint>
| ^
/usr/include/c++/9/type_traits:1268:37: error: 'size_t' is not a member of 'std'
1268 | : public integral_constant<std::size_t,
| ^~~~~~
/usr/include/c++/9/type_traits:1268:37: error: 'size_t' is not a member of 'std'
/usr/include/c++/9/type_traits:1269:24: error: '_Size' was not declared in this scope
1269 | _Uint == 0 ? _Size : extent<_Tp,
| ^~~~~
/usr/include/c++/9/type_traits:1270:28: error: template argument 1 is invalid
1270 | _Uint - 1>::value>
| ^
/usr/include/c++/9/type_traits:1270:28: note: invalid template non-type parameter
/usr/include/c++/9/type_traits:1275:37: error: 'size_t' is not a member of 'std'
1275 | : public integral_constant<std::size_t,
| ^~~~~~
/usr/include/c++/9/type_traits:1275:37: error: 'size_t' is not a member of 'std'
/usr/include/c++/9/type_traits:1277:31: error: template argument 1 is invalid
1277 | _Uint - 1>::value>
| ^
/usr/include/c++/9/type_traits:1277:31: note: invalid template non-type parameter
/usr/include/c++/9/type_traits:1610:26: error: 'size_t' does not name a type
1610 | { static constexpr size_t __size = sizeof(_Tp); };
| ^~~~~~
In file included from /usr/include/c++/9/bits/move.h:55,
from /usr/include/c++/9/bits/stl_pair.h:59,
from /usr/include/c++/9/utility:70,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/type_traits:1:1: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
+++ |+#include <cstddef>
1 | // C++11 <type_traits> -*- C++ -*-
In file included from /usr/include/c++/9/bits/move.h:55,
from /usr/include/c++/9/bits/stl_pair.h:59,
from /usr/include/c++/9/utility:70,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/type_traits:1612:14: error: 'size_t' has not been declared
1612 | template<size_t _Sz, typename _Tp, bool = (_Sz <= _Tp::__size)>
| ^~~~~~
/usr/include/c++/9/type_traits:1612:48: error: '_Sz' was not declared in this scope
1612 | template<size_t _Sz, typename _Tp, bool = (_Sz <= _Tp::__size)>
| ^~~
/usr/include/c++/9/type_traits:1613:14: error: no default argument for '_Tp'
1613 | struct __select;
| ^~~~~~~~
/usr/include/c++/9/type_traits:1615:14: error: 'size_t' has not been declared
1615 | template<size_t _Sz, typename _Uint, typename... _UInts>
| ^~~~~~
/usr/include/c++/9/type_traits:1616:23: error: '_Sz' was not declared in this scope
1616 | struct __select<_Sz, _List<_Uint, _UInts...>, true>
| ^~~
/usr/include/c++/9/type_traits:1616:57: error: template argument 1 is invalid
1616 | struct __select<_Sz, _List<_Uint, _UInts...>, true>
| ^
/usr/include/c++/9/type_traits:1619:14: error: 'size_t' has not been declared
1619 | template<size_t _Sz, typename _Uint, typename... _UInts>
| ^~~~~~
/usr/include/c++/9/type_traits:1620:23: error: '_Sz' was not declared in this scope
1620 | struct __select<_Sz, _List<_Uint, _UInts...>, false>
| ^~~
/usr/include/c++/9/type_traits:1620:58: error: template argument 1 is invalid
1620 | struct __select<_Sz, _List<_Uint, _UInts...>, false>
| ^
/usr/include/c++/9/type_traits:1621:18: error: '_Sz' was not declared in this scope
1621 | : __select<_Sz, _List<_UInts...>>
| ^~~
/usr/include/c++/9/type_traits:1621:38: error: template argument 1 is invalid
1621 | : __select<_Sz, _List<_UInts...>>
| ^~
/usr/include/c++/9/type_traits:1612:52: error: '__size' is not a member of 'std::__make_unsigned_selector_base::_List<unsigned char, short unsigned int, unsigned int, long unsigned int, long long unsigned int>'
1612 | template<size_t _Sz, typename _Tp, bool = (_Sz <= _Tp::__size)>
| ~~~~~^~~~~~~~~~~~~~~
/usr/include/c++/9/type_traits:1634:68: error: template argument 3 is invalid
1634 | using __unsigned_type = typename __select<sizeof(_Tp), _UInts>::__type;
| ^
/usr/include/c++/9/type_traits:1638:40: error: '__unsigned_type' was not declared in this scope
1638 | = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type;
| ^~~~~~~~~~~~~~~
/usr/include/c++/9/type_traits:1638:55: error: template argument 2 is invalid
1638 | = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type;
| ^
/usr/include/c++/9/type_traits:1650:61: error: '__type' in 'class std::__make_unsigned_selector<wchar_t, false, true>' does not name a type
1650 | = typename __make_unsigned_selector<wchar_t, false, true>::__type;
| ^~~~~~
/usr/include/c++/9/type_traits:1667:62: error: '__type' in 'class std::__make_unsigned_selector<char16_t, false, true>' does not name a type
1667 | = typename __make_unsigned_selector<char16_t, false, true>::__type;
| ^~~~~~
/usr/include/c++/9/type_traits:1674:62: error: '__type' in 'class std::__make_unsigned_selector<char32_t, false, true>' does not name a type
1674 | = typename __make_unsigned_selector<char32_t, false, true>::__type;
| ^~~~~~
/usr/include/c++/9/type_traits: In instantiation of 'class std::__make_unsigned_selector<wchar_t, true, false>':
/usr/include/c++/9/type_traits:1761:62: required from 'class std::__make_signed_selector<wchar_t, false, true>'
/usr/include/c++/9/type_traits:1776:57: required from here
/usr/include/c++/9/type_traits:1595:13: error: no type named '__type' in 'struct std::__make_unsigned<wchar_t>'
1595 | using __unsigned_type
| ^~~~~~~~~~~~~~~
/usr/include/c++/9/type_traits:1599:13: error: no type named '__type' in 'struct std::__make_unsigned<wchar_t>'
1599 | using __type
| ^~~~~~
/usr/include/c++/9/type_traits:1776:59: error: invalid combination of multiple type-specifiers
1776 | = typename __make_signed_selector<wchar_t, false, true>::__type;
| ^~~~~~
/usr/include/c++/9/type_traits: In instantiation of 'class std::__make_unsigned_selector<char16_t, true, false>':
/usr/include/c++/9/type_traits:1761:62: required from 'class std::__make_signed_selector<char16_t, false, true>'
/usr/include/c++/9/type_traits:1793:58: required from here
/usr/include/c++/9/type_traits:1595:13: error: no type named '__type' in 'struct std::__make_unsigned<char16_t>'
1595 | using __unsigned_type
| ^~~~~~~~~~~~~~~
/usr/include/c++/9/type_traits:1599:13: error: no type named '__type' in 'struct std::__make_unsigned<char16_t>'
1599 | using __type
| ^~~~~~
/usr/include/c++/9/type_traits:1793:60: error: invalid combination of multiple type-specifiers
1793 | = typename __make_signed_selector<char16_t, false, true>::__type;
| ^~~~~~
/usr/include/c++/9/type_traits: In instantiation of 'class std::__make_unsigned_selector<char32_t, true, false>':
/usr/include/c++/9/type_traits:1761:62: required from 'class std::__make_signed_selector<char32_t, false, true>'
/usr/include/c++/9/type_traits:1800:58: required from here
/usr/include/c++/9/type_traits:1595:13: error: no type named '__type' in 'struct std::__make_unsigned<char32_t>'
1595 | using __unsigned_type
| ^~~~~~~~~~~~~~~
/usr/include/c++/9/type_traits:1599:13: error: no type named '__type' in 'struct std::__make_unsigned<char32_t>'
1599 | using __type
| ^~~~~~
/usr/include/c++/9/type_traits:1800:60: error: invalid combination of multiple type-specifiers
1800 | = typename __make_signed_selector<char32_t, false, true>::__type;
| ^~~~~~
/usr/include/c++/9/type_traits:1832:31: error: 'std::size_t' has not been declared
1832 | template<typename _Tp, std::size_t _Size>
| ^~~~~~
/usr/include/c++/9/type_traits:1833:30: error: '_Size' was not declared in this scope
1833 | struct remove_extent<_Tp[_Size]>
| ^~~~~
/usr/include/c++/9/type_traits:1833:36: error: template argument 1 is invalid
1833 | struct remove_extent<_Tp[_Size]>
| ^
/usr/include/c++/9/type_traits:1845:31: error: 'std::size_t' has not been declared
1845 | template<typename _Tp, std::size_t _Size>
| ^~~~~~
/usr/include/c++/9/type_traits:1846:35: error: '_Size' was not declared in this scope
1846 | struct remove_all_extents<_Tp[_Size]>
| ^~~~~
/usr/include/c++/9/type_traits:1846:41: error: template argument 1 is invalid
1846 | struct remove_all_extents<_Tp[_Size]>
| ^
/usr/include/c++/9/type_traits:1904:17: error: 'std::size_t' has not been declared
1904 | template<std::size_t _Len>
| ^~~~~~
/usr/include/c++/9/type_traits:1909:23: error: '_Len' was not declared in this scope
1909 | unsigned char __data[_Len];
| ^~~~
/usr/include/c++/9/type_traits:1924:17: error: 'std::size_t' has not been declared
1924 | template<std::size_t _Len, std::size_t _Align =
| ^~~~~~
/usr/include/c++/9/type_traits:1924:35: error: 'std::size_t' has not been declared
1924 | template<std::size_t _Len, std::size_t _Align =
| ^~~~~~
/usr/include/c++/9/type_traits:1925:48: error: '_Len' was not declared in this scope
1925 | __alignof__(typename __aligned_storage_msa<_Len>::__type)>
| ^~~~
/usr/include/c++/9/type_traits:1925:52: error: template argument 1 is invalid
1925 | __alignof__(typename __aligned_storage_msa<_Len>::__type)>
| ^
/usr/include/c++/9/type_traits:1930:23: error: '_Len' was not declared in this scope
1930 | unsigned char __data[_Len];
| ^~~~
/usr/include/c++/9/type_traits:1931:37: error: '_Align' was not declared in this scope
1931 | struct __attribute__((__aligned__((_Align)))) { } __align;
| ^~~~~~
/usr/include/c++/9/type_traits:1938:20: error: 'size_t' does not name a type
1938 | static const size_t _S_alignment = 0;
| ^~~~~~
/usr/include/c++/9/type_traits:1938:20: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
/usr/include/c++/9/type_traits:1939:20: error: 'size_t' does not name a type
1939 | static const size_t _S_size = 0;
| ^~~~~~
/usr/include/c++/9/type_traits:1939:20: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
/usr/include/c++/9/type_traits:1945:20: error: 'size_t' does not name a type
1945 | static const size_t _S_alignment =
| ^~~~~~
/usr/include/c++/9/type_traits:1945:20: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
/usr/include/c++/9/type_traits:1948:20: error: 'size_t' does not name a type
1948 | static const size_t _S_size =
| ^~~~~~
/usr/include/c++/9/type_traits:1948:20: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
/usr/include/c++/9/type_traits:1963:13: error: 'size_t' has not been declared
1963 | template <size_t _Len, typename... _Types>
| ^~~~~~
/usr/include/c++/9/type_traits:1970:20: error: 'size_t' does not name a type
1970 | static const size_t _S_len = _Len > __strictest::_S_size
| ^~~~~~
/usr/include/c++/9/type_traits:1970:20: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
/usr/include/c++/9/type_traits:1974:20: error: 'size_t' does not name a type
1974 | static const size_t alignment_value = __strictest::_S_alignment;
| ^~~~~~
/usr/include/c++/9/type_traits:1974:20: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
/usr/include/c++/9/type_traits:1976:40: error: '_S_len' was not declared in this scope
1976 | typedef typename aligned_storage<_S_len, alignment_value>::type type;
| ^~~~~~
/usr/include/c++/9/type_traits:1976:48: error: 'alignment_value' was not declared in this scope; did you mean 'alignment_of'?
1976 | typedef typename aligned_storage<_S_len, alignment_value>::type type;
| ^~~~~~~~~~~~~~~
| alignment_of
/usr/include/c++/9/type_traits:1976:63: error: template argument 1 is invalid
1976 | typedef typename aligned_storage<_S_len, alignment_value>::type type;
| ^
/usr/include/c++/9/type_traits:1976:63: error: template argument 2 is invalid
/usr/include/c++/9/type_traits:1979:13: error: 'size_t' has not been declared
1979 | template <size_t _Len, typename... _Types>
| ^~~~~~
/usr/include/c++/9/type_traits:1980:11: error: 'size_t' does not name a type
1980 | const size_t aligned_union<_Len, _Types...>::alignment_value;
| ^~~~~~
/usr/include/c++/9/type_traits:1980:11: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
/usr/include/c++/9/type_traits:2487:26: error: 'size_t' has not been declared
2487 | template<typename _Tp, size_t _Nm>
| ^~~~~~
/usr/include/c++/9/type_traits:2490:21: error: '_Nm' was not declared in this scope
2490 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/type_traits:2490:24: error: 'template<class _Tp, <declaration error> > typename std::enable_if<std::__is_swappable<_Tp>::value>::type std::swap' conflicts with a previous declaration
2490 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^
/usr/include/c++/9/type_traits:2483:5: note: previous declaration 'typename std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> >::value>::type std::swap(_Tp&, _Tp&)'
2483 | swap(_Tp&, _Tp&)
| ^~~~
/usr/include/c++/9/type_traits:2490:16: error: '__a' was not declared in this scope
2490 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/type_traits:2490:21: error: '_Nm' was not declared in this scope
2490 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/type_traits:2490:33: error: '__b' was not declared in this scope
2490 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/type_traits:2490:38: error: '_Nm' was not declared in this scope
2490 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/type_traits:2490:43: error: expected ';' before 'noexcept'
2490 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^
| ;
2491 | noexcept(__is_nothrow_swappable<_Tp>::value);
| ~~~~~~~~
In file included from /usr/include/c++/9/bits/stl_pair.h:59,
from /usr/include/c++/9/utility:70,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/bits/move.h:201:26: error: 'size_t' has not been declared
201 | template<typename _Tp, size_t _Nm>
| ^~~~~~
/usr/include/c++/9/bits/move.h:205:21: error: '_Nm' was not declared in this scope
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/bits/move.h:205:24: error: 'template<class _Tp, <declaration error> > typename std::enable_if<std::__is_swappable<_Tp>::value>::type std::swap' conflicts with a previous declaration
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^
/usr/include/c++/9/bits/move.h:182:5: note: previous declaration 'typename std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<_Tp> >, std::is_move_constructible<_Tp>, std::is_move_assignable<_Tp> >::value>::type std::swap(_Tp&, _Tp&)'
182 | swap(_Tp& __a, _Tp& __b)
| ^~~~
/usr/include/c++/9/bits/move.h:205:16: error: '__a' was not declared in this scope
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/bits/move.h:205:21: error: '_Nm' was not declared in this scope
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/bits/move.h:205:33: error: '__b' was not declared in this scope
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/bits/move.h:205:38: error: '_Nm' was not declared in this scope
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^~~
/usr/include/c++/9/bits/move.h:205:43: error: expected ';' before 'noexcept'
205 | swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
| ^
| ;
206 | noexcept(__is_nothrow_swappable<_Tp>::value)
| ~~~~~~~~
In file included from /usr/include/c++/9/utility:70,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/bits/stl_pair.h:86:17: error: 'std::size_t' has not been declared
86 | template<std::size_t...>
| ^~~~~~
/usr/include/c++/9/bits/stl_pair.h:434:41: error: 'std::size_t' has not been declared
434 | template<typename... _Args1, std::size_t... _Indexes1,
| ^~~~~~
/usr/include/c++/9/bits/stl_pair.h:435:41: error: 'std::size_t' has not been declared
435 | typename... _Args2, std::size_t... _Indexes2>
| ^~~~~~
/usr/include/c++/9/bits/stl_pair.h:437:27: error: '_Indexes1' was not declared in this scope
437 | _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);
| ^~~~~~~~~
/usr/include/c++/9/bits/stl_pair.h:437:36: error: expected parameter pack before '...'
437 | _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);
| ^~~
/usr/include/c++/9/bits/stl_pair.h:437:39: error: template argument 1 is invalid
437 | _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);
| ^
/usr/include/c++/9/bits/stl_pair.h:437:55: error: '_Indexes2' was not declared in this scope
437 | _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);
| ^~~~~~~~~
/usr/include/c++/9/bits/stl_pair.h:437:64: error: expected parameter pack before '...'
437 | _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);
| ^~~
/usr/include/c++/9/bits/stl_pair.h:437:67: error: template argument 1 is invalid
437 | _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);
| ^
In file included from /usr/include/c++/9/utility:76,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/initializer_list:53:15: error: 'size_t' does not name a type
53 | typedef size_t size_type;
| ^~~~~~
In file included from /usr/include/c++/9/utility:76,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/initializer_list:1:1: note: 'size_t' is defined in header '<cstddef>'; did you forget to '#include <cstddef>'?
+++ |+#include <cstddef>
1 | // std::initializer_list support -*- C++ -*-
In file included from /usr/include/c++/9/utility:76,
from /usr/include/c++/9/algorithm:60,
from foo.cc:2:
/usr/include/c++/9/initializer_list:59:7: error: 'size_type' does not name a type; did you mean 'true_type'?
59 | size_type _M_len;
| ^~~~~~~~~
| true_type
/usr/include/c++/9/initializer_list:62:54: error: 'size_type' has not been declared
62 | constexpr initializer_list(const_iterator __a, size_type __l)
| ^~~~~~~~~
/usr/include/c++/9/initializer_list:70:17: error: 'size_type' does not name a type; did you mean 'true_type'?
70 | constexpr size_type
| ^~~~~~~~~
| true_type
/usr/include/c++/9/initializer_list:47:11: fatal error: definition of 'class std::initializer_list<_E>' does not match '#include <initializer_list>'
47 | class initializer_list
| ^~~~~~~~~~~~~~~~
compilation terminated.
无影 (吴鹏飞) LV 10
undefined
