Eroare de compilare: user.cpp:39: error: ISO C++ forbids declaration of ‘interv’ with no type user.cpp:39: error: expected ‘,’ or ‘...’ before ‘&’ token user.cpp: In member function ‘bool cmp::operator()(int)’: user.cpp:40: error: request for member ‘st’ in ‘a’, which is of non-class type ‘double’ user.cpp:40: error: request for member ‘st’ in ‘b’, which is of non-class type ‘double’ In file included from /usr/include/c++/4.4/algorithm:62, from user.cpp:2: /usr/include/c++/4.4/bits/stl_algo.h: In function ‘const _Tp& std::__median(const _Tp&, const _Tp&, const _Tp&, _Compare) [with _Tp = cub, _Compare = cmp]’: /usr/include/c++/4.4/bits/stl_algo.h:2301: instantiated from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = cub*, _Size = int, _Compare = cmp]’ /usr/include/c++/4.4/bits/stl_algo.h:5258: instantiated from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = cub*, _Compare = cmp]’ user.cpp:70: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:124: error: no match for call to ‘(cmp) (const cub&, const cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h:125: error: no match for call to ‘(cmp) (const cub&, const cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h:127: error: no match for call to ‘(cmp) (const cub&, const cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h:131: error: no match for call to ‘(cmp) (const cub&, const cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h:133: error: no match for call to ‘(cmp) (const cub&, const cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h: In function ‘_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, _Tp, _Compare) [with _RandomAccessIterator = cub*, _Tp = cub, _Compare = cmp]’: /usr/include/c++/4.4/bits/stl_algo.h:2301: instantiated from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = cub*, _Size = int, _Compare = cmp]’ /usr/include/c++/4.4/bits/stl_algo.h:5258: instantiated from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = cub*, _Compare = cmp]’ user.cpp:70: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2230: error: no match for call to ‘(cmp) (cub&, cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h:2233: error: no match for call to ‘(cmp) (cub&, cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = cub*, _Compare = cmp]’: /usr/include/c++/4.4/bits/stl_algo.h:2193: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = cub*, _Compare = cmp]’ /usr/include/c++/4.4/bits/stl_algo.h:5260: instantiated from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = cub*, _Compare = cmp]’ user.cpp:70: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2128: error: no match for call to ‘(cmp) (cub&, cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = cub*, _Compare = cmp]’: /usr/include/c++/4.4/bits/stl_algo.h:5108: instantiated from ‘void std::partial_sort(_RAIter, _RAIter, _RAIter, _Compare) [with _RAIter = cub*, _Compare = cmp]’ /usr/include/c++/4.4/bits/stl_algo.h:2288: instantiated from ‘void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size, _Compare) [with _RandomAccessIterator = cub*, _Size = int, _Compare = cmp]’ /usr/include/c++/4.4/bits/stl_algo.h:5258: instantiated from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = cub*, _Compare = cmp]’ user.cpp:70: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:1919: error: no match for call to ‘(cmp) (cub&, cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) /usr/include/c++/4.4/bits/stl_algo.h: In function ‘void std::__unguarded_linear_insert(_RandomAccessIterator, _Tp, _Compare) [with _RandomAccessIterator = cub*, _Tp = cub, _Compare = cmp]’: /usr/include/c++/4.4/bits/stl_algo.h:2134: instantiated from ‘void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = cub*, _Compare = cmp]’ /usr/include/c++/4.4/bits/stl_algo.h:2193: instantiated from ‘void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = cub*, _Compare = cmp]’ /usr/include/c++/4.4/bits/stl_algo.h:5260: instantiated from ‘void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = cub*, _Compare = cmp]’ user.cpp:70: instantiated from here /usr/include/c++/4.4/bits/stl_algo.h:2084: error: no match for call to ‘(cmp) (cub&, cub&)’ user.cpp:39: note: candidates are: bool cmp::operator()(int) In file included from /usr/include/c++/4.4/bits/stl_algo.h:62,