foo.cpp: In function 'int main()':
foo.cpp:4:9: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11 [enabled by default]
    long n{1,2,3,4,5,6,7,8,9,10};
         ^
foo.cpp:4:31: error: scalar object 'n' requires one element in initializer
    long n{1,2,3,4,5,6,7,8,9,10};
                               ^