Compilare: user.cpp: In function ‘void citire()’: user.cpp:29:37: warning: NULL used in arithmetic [-Wpointer-arith] if (c >= '0'&&c <= '9'&&b[k].val==NULL) ^ user.cpp:32:17: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] b[k].operant = NULL; ^ user.cpp:33:9: warning: overflow in implicit constant conversion [-Woverflow] v[k] = MAXINT; ^ user.cpp:35:44: warning: NULL used in arithmetic [-Wpointer-arith] else if (c >= '0'&&c <= '9'&&b[k].val != NULL) ^ user.cpp:40:17: warning: NULL used in arithmetic [-Wpointer-arith] if(b[k].val!=NULL)k++; ^ user.cpp:42:13: warning: converting to non-pointer type ‘int’ from NULL [-Wconversion-null] b[k].val = NULL; ^ user.cpp: In function ‘void RSD(int, int)’: user.cpp:4:16: warning: overflow in implicit constant conversion [-Woverflow] #define MAXINT 10000000000 ^ user.cpp:61:10: note: in expansion of macro ‘MAXINT’ int x = MAXINT, i, l = -1; ^ user.cpp: In function ‘void add(int)’: user.cpp:78:16: 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:105:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^ user.cpp:110:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^ user.cpp:115:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^ user.cpp:120:10: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] p->op = NULL; ^