Compilare: user.cpp: In function ‘void update(std::vector<int>*, size_t, int)’: user.cpp:8:23: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) ((x) & ((x) - 1) ^ (x)) ^ user.cpp:21:35: note: in expansion of macro ‘zeros’ for (; pos < aib.size(); pos += zeros(pos)) { ^ user.cpp: In function ‘int query(const std::vector<int>&, size_t)’: user.cpp:8:23: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define zeros(x) ((x) & ((x) - 1) ^ (x)) ^ user.cpp:28:26: note: in expansion of macro ‘zeros’ for (; pos > 0; pos -= zeros(pos)) { ^