Compilare: user.cpp: In function ‘int search(char*)’: user.cpp:27:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(strcmp(r[i].nume,cuv)>0 && i < (r.size()-1)) i++; ^ In file included from /usr/include/string.h:642:0, from /usr/include/c++/4.8/cstring:42, from user.cpp:3: In function ‘char* strcpy(char*, const char*)’, inlined from ‘void read()’ at user.cpp:21:52: /usr/include/i386-linux-gnu/bits/string3.h:105:63: warning: call to void* __builtin___memcpy_chk(void*, const void*, unsigned int, unsigned int) will always overflow destination buffer [enabled by default] return __builtin___strcpy_chk (__dest, __src, __bos (__dest)); ^