0_0_36570846_30971.cpp: In function 'int main()':
0_0_36570846_30971.cpp:9:3: error: 'std::istream' has no member named 'b'
b = a * (a + 1) / 2;
^
0_0_36570846_30971.cpp:9:14: error: no match for 'operator+' (operand types are 'std::string {aka std::basic_string<char>}' and 'int')
b = a * (a + 1) / 2;
^
0_0_36570846_30971.cpp:9:14: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:67:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:334:5: note: template<class _Iterator> std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&)
operator+(typename reverse_iterator<_Iterator>::difference_type __n,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:334:5: note: template argument deduction/substitution failed:
0_0_36570846_30971.cpp:9:16: note: mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
b = a * (a + 1) / 2;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:67:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:1135:5: note: template<class _Iterator> std::move_iterator<_Iterator> std::operator+(typename std::move_iterator<_Iterator>::difference_type, const std::move_iterator<_Iterator>&)
operator+(typename move_iterator<_Iterator>::difference_type __n,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:1135:5: note: template argument deduction/substitution failed:
0_0_36570846_30971.cpp:9:16: note: mismatched types 'const std::move_iterator<_Iterator>' and 'int'
b = a * (a + 1) / 2;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52:0,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2384:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2384:5: note: template argument deduction/substitution failed:
0_0_36570846_30971.cpp:9:16: note: mismatched types 'const std::basic_string<_CharT, _Traits, _Alloc>' and 'int'
b = a * (a + 1) / 2;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:53:0,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.tcc:692:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(const _CharT*, const std::basic_string<_CharT, _Traits, _Alloc>&)
operator+(const _CharT* __lhs,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.tcc:692:5: note: template argument deduction/substitution failed:
0_0_36570846_30971.cpp:9:16: note: mismatched types 'const _CharT*' and 'std::basic_string<char>'
b = a * (a + 1) / 2;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:53:0,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.tcc:708:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(_CharT, const std::basic_string<_CharT, _Traits, _Alloc>&)
operator+(_CharT __lhs, const basic_string<_CharT, _Traits, _Alloc>& __rhs)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.tcc:708:5: note: template argument deduction/substitution failed:
0_0_36570846_30971.cpp:9:16: note: mismatched types 'const std::basic_string<_CharT, _Traits, _Alloc>' and 'int'
b = a * (a + 1) / 2;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52:0,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2421:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2421:5: note: template argument deduction/substitution failed:
0_0_36570846_30971.cpp:9:16: note: mismatched types 'const _CharT*' and 'int'
b = a * (a + 1) / 2;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52:0,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2437:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::basic_string<_CharT, _Traits, _Alloc>&, _CharT)
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2437:5: note: template argument deduction/substitution failed:
0_0_36570846_30971.cpp:9:16: note: deduced conflicting types for parameter '_CharT' ('char' and 'int')
b = a * (a + 1) / 2;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:52:0,
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_36570846_30971.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2449:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(std::basic_string<_CharT, _Traits, _Alloc>&&, const std::basic_string<_CharT, _Traits, _Alloc>&)
operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h
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