Main.cc: In function 'int main()': Main.cc:245:18: error: jump to case label [-fpermissive] case 3: ^ Main.cc:229:24: error: crosses initialization of 'double delta2' double delta2=b*b-4*a*c; ^ Main.cc:267:13: error: jump to case label [-fpermissive] default: ^ Main.cc:254:24: error: crosses initialization of 'double delta3' double delta3=b*b-4*a*c; ^ Main.cc:229:24: error: crosses initialization of 'double delta2' double delta2=b*b-4*a*c; ^