Cut Label

c++ - How do I resolve this error: jump to case label crosses ... A "case" of a switch doesn't create a scope, so, as the error says, you're jumping over the initialization of "sum" if the choice isn't 1. You either need to declare sum and diff outside the switch, or create blocks with { } for each of the cases. Share Improve this answer Follow answered May 12, 2014 at 1:21 Andrew McGuinness 2,082 12 18 Error: jump to label 'failed' [-fpermissive], GCC vs VS One solution is to put int num_unknowns = 0; at the beginning of the function, and change the third line of the code sample you posted to just an assignment to num_unknowns. Another solution is to instruct GCC to allow this, with the -fpermissive option, as the error itself indicates. Share Improve this answer Follow answered Jun 5, 2016 at 0:09 [Solved] Error: Jump to case label in switch statement Error: Jump to case label in switch statement c++ switch-statement 375,105 Solutio...