Main.cc: In function 'int main()': Main.cc:6:5: error: expected ',' or ';' before 'for' for(double i=100;i<=;i++){ ^ Main.cc:6:25: error: expected primary-expression before ';' token for(double i=100;i<=;i++){ ^ Main.cc:6:29: error: expected ';' before ')' token for(double i=100;i<=;i++){ ^