Compilare: main.cpp: In member function 'Matrice& Matrice::operator*(Matrice&)': main.cpp:54:17: warning: reference to local variable 'rez' returned [-Wreturn-local-addr] Matrice rez(p,len); ^~~ main.cpp: In member function 'Matrice& Matrice::operator+(Matrice&)': main.cpp:85:17: warning: reference to local variable 'rez' returned [-Wreturn-local-addr] Matrice rez(p,len); ^~~ main.cpp: In member function 'Matrice& Matrice::operator^(int)': main.cpp:126:17: warning: reference to local variable 'rez' returned [-Wreturn-local-addr] Matrice rez(len); ^~~ main.cpp: In function 'int main()': main.cpp:156:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("iepuri.in", "r",stdin); ^ main.cpp:157:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("iepuri.out", "w",stdout); ^