Eroare de compilare: user.cpp: In function 'void merge_sort(int, int)': user.cpp:46: error: no match for 'operator<' in 'v[p1] < v[p2]' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) user.cpp:48: error: no match for 'operator<' in 'v[p2] < v[p1]' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h: In function 'const _Tp& std::__median(const _Tp&, const _Tp&, const _Tp&) [with _Tp = pConcerte]': /usr/include/c++/4.2/bits/stl_algo.h:2758: instantiated from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = pConcerte*, _Size = int]' /usr/include/c++/4.2/bits/stl_algo.h:2829: instantiated from 'void std::sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' user.cpp:90: instantiated from here /usr/include/c++/4.2/bits/stl_algo.h:91: error: no match for 'operator<' in '__a < __b' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h:92: error: no match for 'operator<' in '__b < __c' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h:94: error: no match for 'operator<' in '__a < __c' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h:98: error: no match for 'operator<' in '__a < __c' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h:100: error: no match for 'operator<' in '__b < __c' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h: In function '_RandomAccessIterator std::__unguarded_partition(_RandomAccessIterator, _RandomAccessIterator, _Tp) [with _RandomAccessIterator = pConcerte*, _Tp = pConcerte]': /usr/include/c++/4.2/bits/stl_algo.h:2758: instantiated from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = pConcerte*, _Size = int]' /usr/include/c++/4.2/bits/stl_algo.h:2829: instantiated from 'void std::sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' user.cpp:90: instantiated from here /usr/include/c++/4.2/bits/stl_algo.h:2253: error: no match for 'operator<' in '* __first < __pivot' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h:2256: error: no match for 'operator<' in '__pivot < * __last' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h: In function 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]': /usr/include/c++/4.2/bits/stl_algo.h:2438: instantiated from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' /usr/include/c++/4.2/bits/stl_algo.h:2831: instantiated from 'void std::sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' user.cpp:90: instantiated from here /usr/include/c++/4.2/bits/stl_algo.h:2356: error: no match for 'operator<' in '__val < * __first' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h: In function 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]': /usr/include/c++/4.2/bits/stl_algo.h:2551: instantiated from 'void std::partial_sort(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' /usr/include/c++/4.2/bits/stl_algo.h:2746: instantiated from 'void std::__introsort_loop(_RandomAccessIterator, _RandomAccessIterator, _Size) [with _RandomAccessIterator = pConcerte*, _Size = int]' /usr/include/c++/4.2/bits/stl_algo.h:2829: instantiated from 'void std::sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' user.cpp:90: instantiated from here /usr/include/c++/4.2/bits/stl_algo.h:2481: error: no match for 'operator<' in '* __i < * __first' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_algo.h: In function 'void std::__unguarded_linear_insert(_RandomAccessIterator, _Tp) [with _RandomAccessIterator = pConcerte*, _Tp = pConcerte]': /usr/include/c++/4.2/bits/stl_algo.h:2362: instantiated from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' /usr/include/c++/4.2/bits/stl_algo.h:2438: instantiated from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' /usr/include/c++/4.2/bits/stl_algo.h:2831: instantiated from 'void std::sort(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' user.cpp:90: instantiated from here /usr/include/c++/4.2/bits/stl_algo.h:2309: error: no match for 'operator<' in '__val < * __next' user.cpp:20: note: candidates are: bool pConcerte::operator<(pConcerte*) /usr/include/c++/4.2/bits/stl_heap.h: In function 'void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp) [with _RandomAccessIterator = pConcerte*, _Distance = int, _Tp = pConcerte]': /usr/include/c++/4.2/bits/stl_heap.h:364: instantiated from 'void std::make_heap(_RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]' /usr/include/c++/4.2/bits/stl_algo.h:2479: instantiated from 'void std::__heap_select(_RandomAccessIterator, _RandomAccessIterator, _RandomAccessIterator) [with _RandomAccessIterator = pConcerte*]'