Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:15:20: error: no matching function for call to ‘swap(int*, int*)’ swap(&a, &b); ^ user.cpp:15:20: note: candidates are: In file included from /usr/include/c++/4.8/bits/stl_pair.h:59:0, from /usr/include/c++/4.8/bits/stl_algobase.h:64, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/move.h:166:5: note: void std::swap(_Tp&, _Tp&) [with _Tp = int*] swap(_Tp& __a, _Tp& __b) ^ /usr/include/c++/4.8/bits/move.h:166:5: note: no known conversion for argument 1 from ‘int*’ to ‘int*&’ /usr/include/c++/4.8/bits/move.h:185:5: note: template<class _Tp, unsigned int _Nm> void std::swap(_Tp (&)[_Nm], _Tp (&)[_Nm]) swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm]) ^ /usr/include/c++/4.8/bits/move.h:185:5: note: template argument deduction/substitution failed: user.cpp:15:20: note: mismatched types ‘_Tp [_Nm]’ and ‘int*’ swap(&a, &b); ^ In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0, from /usr/include/c++/4.8/bits/char_traits.h:39, from /usr/include/c++/4.8/ios:40, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/stl_pair.h:254:5: note: template<class _T1, class _T2> void std::swap(std::pair<_T1, _T2>&, std::pair<_T1, _T2>&) swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y) ^ /usr/include/c++/4.8/bits/stl_pair.h:254:5: note: template argument deduction/substitution failed: user.cpp:15:20: note: mismatched types ‘std::pair<_T1, _T2>’ and ‘int*’ swap(&a, &b); ^ In file included from /usr/include/c++/4.8/string:52:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from user.cpp:1: /usr/include/c++/4.8/bits/basic_string.h:2717:5: note: template<class _CharT, class _Traits, class _Alloc> void std::swap(std::basic_string<_CharT, _Traits, _Alloc>&, std::basic_string<_CharT, _Traits, _Alloc>&) swap(basic_string<_CharT, _Traits, _Alloc>& __lhs, ^ /usr/include/c++/4.8/bits/basic_string.h:2717:5: note: template argument deduction/substitution failed: user.cpp:15:20: note: mismatched types ‘std::basic_string<_CharT, _Traits, _Alloc>’ and ‘int*’ swap(&a, &b); ^