//args: -Egoerr113 package testdata import "os" func SimpleEqual(e1, e2 error) bool { return e1 == e2 // ERROR `err113: do not compare errors directly, use errors.Is() instead: "e1 == e2"` } func SimpleNotEqual(e1, e2 error) bool { return e1 != e2 // ERROR `err113: do not compare errors directly, use errors.Is() instead: "e1 != e2"` } func CheckGoerr13Import(e error) bool { f, err := os.Create("f.txt") if err != nil { return err == e // ERROR `err113: do not compare errors directly, use errors.Is() instead: "err == e"` } f.Close() return false }