can any1 tell me why im getting this error

[L E G I O N]

Error 1 error LNK2019: unresolved external symbol "void __cdecl output(int)" (?output@@YAXH@Z) referenced in function _main RPG.obj RPG test

[Disch]

You made a function prototype for void output(int); and you called that funciton from main.

However you never gave that function a body.