sumprod.cpp: In function 'int main()': sumprod.cpp:15: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sumprod.cpp:15: error: deducing from brace-enclosed initializer list requires #include <initializer_list> sumprod.cpp:15: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sumprod.cpp:16: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x sumprod.cpp:16: error: deducing from brace-enclosed initializer list requires #include <initializer_list> sumprod.cpp:16: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x