Compiler output
prog.cpp: In function 'int main()':
prog.cpp:23:23: error: no matching function for call to 'getline(std::ifstream&, int&)'
prog.cpp:23:23: note: candidates are:
In file included from /usr/include/stdio.h:927:0,
from /usr/include/c++/4.7/cstdio:44,
from /usr/include/c++/4.7/ext/string_conversions.h:39,
from /usr/include/c++/4.7/bits/basic_string.h:2814,
from /usr/include/c++/4.7/string:54,
from /usr/include/c++/4.7/bits/locale_classes.h:42,
from /usr/include/c++/4.7/bits/ios_base.h:43,
from /usr/include/c++/4.7/ios:43,
from /usr/include/c++/4.7/istream:40,
from /usr/include/c++/4.7/fstream:40,
from prog.cpp:8:
/usr/include/x86_64-linux-gnu/bits/stdio.h:116:1: note: __ssize_t getline(char**, size_t*, FILE*)
/usr/include/x86_64-linux-gnu/bits/stdio.h:116:1: note: candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/4.7/string:54:0,
from /usr/include/c++/4.7/bits/locale_classes.h:42,
from /usr/include/c++/4.7/bits/ios_base.h:43,
from /usr/include/c++/4.7/ios:43,
from /usr/include/c++/4.7/istream:40,
from /usr/include/c++/4.7/fstream:40,
from prog.cpp:8:
/usr/include/c++/4.7/bits/basic_string.h:2792:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::getline(std::basic_istream<_CharT, _Traits>&, std::basic_string<_CharT, _Traits, _Alloc>&)
/usr/include/c++/4.7/bits/basic_string.h:2792:5: note: template argument deduction/substitution failed:
prog.cpp:23:23: note: mismatched types 'std::basic_string<_CharT, _Traits, _Alloc>' and 'int'
In file included from /usr/include/c++/4.7/string:55:0,
from /usr/include/c++/4.7/bits/locale_classes.h:42,
from /usr/include/c++/4.7/bits/ios_base.h:43,
from /usr/include/c++/4.7/ios:43,
from /usr/include/c++/4.7/istream:40,
from /usr/include/c++/4.7/fstream:40,
from prog.cpp:8:
/usr/include/c++/4.7/bits/basic_string.tcc:1070:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::getline(std::basic_istream<_CharT, _Traits>&, std::basic_string<_CharT, _Traits, _Alloc>&, _CharT)
/usr/include/c++/4.7/bits/basic_string.tcc:1070:5: note: template argument deduction/substitution failed:
prog.cpp:23:23: note: mismatched types 'std::basic_string<_CharT, _Traits, _Alloc>' and 'int'
prog.cpp:18:11: warning: unused variable 'a' [-Wunused-variable]
prog.cpp:18:17: warning: unused variable 'b' [-Wunused-variable]
