tren1.cpp: In function 'int main()': tren1.cpp:67: warning: 'auto' will change meaning in C++0x; please remove it tren1.cpp:67: error: expected initializer before ':' token tren1.cpp:71: error: expected primary-expression before 'return' tren1.cpp:71: error: expected ';' before 'return' tren1.cpp:71: error: expected primary-expression before 'return' tren1.cpp:71: error: expected ')' before 'return'