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