Main.cc: In function ‘int main()’:
Main.cc:7:9: error: expected primary-expression before ‘%’ token
cout<<(%7d%7d%7d,a,b,c);
^
Main.cc:7:10: error: unable to find numeric literal operator ‘operator""d’
cout<<(%7d%7d%7d,a,b,c);
^~
Main.cc:7:10: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
Main.cc:7:13: error: unable to find numeric literal operator ‘operator""d’
cout<<(%7d%7d%7d,a,b,c);
^~
Main.cc:7:13: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
Main.cc:7:16: error: unable to find numeric literal operator ‘operator""d’
cout<<(%7d%7d%7d,a,b,c);
^~
Main.cc:7:16: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes