0_0_22717938_12728.cpp: In function 'int main()':
0_0_22717938_12728.cpp:7:12: error: no match for 'operator<<' (operand types are 'std::istream {aka std::basic_istream<char>}' and 'double')
while(cin<<x1<<y1<<x2<<y2)
^
0_0_22717938_12728.cpp:7:12: note: candidates are:
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_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2772:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
operator<<(basic_ostream<_CharT, _Traits>& __os,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/basic_string.h:2772:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:471:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)
operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:471:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:476:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)
operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:476:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:482:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char)
operator<<(basic_ostream<char, _Traits>& __out, char __c)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:482:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:488:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char)
operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:488:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:493:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char)
operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:493:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:513:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)
operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:513:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:609:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ostream.tcc:321:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*)
operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ostream.tcc:321:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:530:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*)
operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:530:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:543:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const signed char*)
operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:543:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:548:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const unsigned char*)
operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:548:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
from 0_0_22717938_12728.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:602:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&)
operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:602:5: note: template argument deduction/substitution failed:
0_0_22717938_12728.cpp:7:14: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
while(cin<<x1<<y1<<x2<<y2)
^
In file inclu
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