In file included from /in/Compile/check.cpp:7:
/in/sokoban.hpp:62:71: error: implicit conversion changes signedness: 'int' to 'size_t' (aka 'unsigned long') [-Werror,-Wsign-conversion]
return abs(static_cast<int>(a.first) - static_cast<int>(b.first)) +
~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
/in/sokoban.hpp:112:29: error: implicit conversion changes signedness: 'std::tuple_element<0, const std::pair<int, int> >::type' (aka 'const int') to 'unsigned long' [-Werror,-Wsign-conversion]
size_t nx = x + dx, ny = y + dy;
~ ^~
/in/sokoban.hpp:112:42: error: implicit conversion changes signedness: 'std::tuple_element<1, const std::pair<int, int> >::type' (aka 'const int') to 'unsigned long' [-Werror,-Wsign-conversion]
size_t nx = x + dx, ny = y + dy;
~ ^~
/in/sokoban.hpp:204:62: error: implicit conversion changes signedness: 'int' to 'unsigned long' [-Werror,-Wsign-conversion]
auto next_player = make_pair(curr.player.first + dx, curr.player.second + dy);
~ ^~
/in/sokoban.hpp:204:87: error: implicit conversion changes signedness: 'int' to 'unsigned long' [-Werror,-Wsign-conversion]
auto next_player = make_pair(curr.player.first + dx, curr.player.second + dy);
~ ^~
/in/sokoban.hpp:216:58: error: implicit conversion changes signedness: 'int' to 'unsigned long' [-Werror,-Wsign-conversion]
auto new_box = make_pair(box.first + dx, box.second + dy);
~ ^~
/in/sokoban.hpp:216:75: error: implicit conversion changes signedness: 'int' to 'unsigned long' [-Werror,-Wsign-conversion]
auto new_box = make_pair(box.first + dx, box.second + dy);
~ ^~
7 errors generated.
/in/Compile/Makefile:16: recipe for target 'main' failed
make: *** [main] Error 1
