Compilare: user.cpp: In function ‘void schimbare()’: user.cpp:30:17: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] b[k].operant = NULL; ^ user.cpp:39:12: warning: converting to non-pointer type ‘int’ from NULL [-Wconversion-null] b[k].val = NULL; ^ user.cpp: In function ‘void identificare()’: user.cpp:60:22: warning: NULL used in arithmetic [-Wpointer-arith] else if (b[i].val!=NULL) v[i] = MAXINT; ^ user.cpp:60:33: warning: overflow in implicit constant conversion [-Woverflow] else if (b[i].val!=NULL) v[i] = MAXINT; ^ user.cpp: In function ‘void RSD(int, int)’: user.cpp:4:16: warning: overflow in implicit constant conversion [-Woverflow] #define MAXINT 10000000000 ^ user.cpp:67:10: note: in expansion of macro ‘MAXINT’ int x = MAXINT, i, l = -1; ^ user.cpp: In function ‘void add(int)’: user.cpp:87:16: warning: NULL used in arithmetic [-Wpointer-arith] if (b[x].val!=NULL)q->val = b[x].val; ^ user.cpp: In function ‘void calcul()’: user.cpp:114:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^ user.cpp:119:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^ user.cpp:124:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^ user.cpp:129:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^