Eroare de compilare: user.cpp:4: error: expected constructor, destructor, or type conversion before ‘namespace’ user.cpp:7: error: ‘ifstream’ does not name a type user.cpp:8: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:10: error: ‘f’ was not declared in this scope user.cpp:12: error: ‘strlen’ was not declared in this scope user.cpp:14: error: ‘strchr’ was not declared in this scope user.cpp:18: error: ‘strlen’ was not declared in this scope user.cpp:30: warning: name lookup of ‘i’ changed user.cpp:6: warning: matches this ‘i’ under ISO standard rules user.cpp:12: warning: matches this ‘i’ under old rules user.cpp:42: error: ‘g’ was not declared in this scope