/in/foo.cc: In function 'int main()':
/in/foo.cc:5:17: error: no matching function for call to 'getline(std::istream&, char [3])'
getline(cin,num);
^
In file included from /usr/include/stdio.h:935:0,
from /usr/include/c++/6/cstdio:42,
from /usr/include/c++/6/ext/string_conversions.h:43,
from /usr/include/c++/6/bits/basic_string.h:5417,
from /usr/include/c++/6/string:52,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/x86_64-linux-gnu/bits/stdio.h:115:1: note: candidate: __ssize_t getline(char**, size_t*, FILE*)
getline (char **__lineptr, size_t *__n, FILE *__stream)
^~~~~~~
/usr/include/x86_64-linux-gnu/bits/stdio.h:115:1: note: candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/6/string:52:0,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/basic_string.h:5395:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::getline(std::basic_istream<_CharT, _Traits>&&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
getline(basic_istream<_CharT, _Traits>&& __is,
^~~~~~~
/usr/include/c++/6/bits/basic_string.h:5395:5: note: template argument deduction/substitution failed:
/in/foo.cc:5:17: note: mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'char [3]'
getline(cin,num);
^
In file included from /usr/include/c++/6/string:52:0,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/basic_string.h:5388:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::getline(std::basic_istream<_CharT, _Traits>&&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, _CharT)
getline(basic_istream<_CharT, _Traits>&& __is,
^~~~~~~
/usr/include/c++/6/bits/basic_string.h:5388:5: note: template argument deduction/substitution failed:
/in/foo.cc:5:17: note: mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'char [3]'
getline(cin,num);
^
In file included from /usr/include/c++/6/string:52:0,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/basic_string.h:5380:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::getline(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
getline(basic_istream<_CharT, _Traits>& __is,
^~~~~~~
/usr/include/c++/6/bits/basic_string.h:5380:5: note: template argument deduction/substitution failed:
/in/foo.cc:5:17: note: mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'char [3]'
getline(cin,num);
^
In file included from /usr/include/c++/6/string:53:0,
from /usr/include/c++/6/bits/locale_classes.h:40,
from /usr/include/c++/6/bits/ios_base.h:41,
from /usr/include/c++/6/ios:42,
from /usr/include/c++/6/ostream:38,
from /usr/include/c++/6/iostream:39,
from /in/foo.cc:1:
/usr/include/c++/6/bits/basic_string.tcc:1509:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::getline(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, _CharT)
getline(basic_istream<_CharT, _Traits>& __in,
^~~~~~~
/usr/include/c++/6/bits/basic_string.tcc:1509:5: note: template argument deduction/substitution failed:
/in/foo.cc:5:17: note: mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'char [3]'
getline(cin,num);
^