//Returnf should be deferred in functions that pass errors to their caller, pass the named return value that errors should be passed to.
//The format string should be a constant.
Returnf should be deferred in functions that pass errors to their caller, pass the named return value that errors should be passed to.
The format string should be a constant.
// Returnf should be deferred in functions that pass errors to their caller pass the named return value that errors should be passed to . // The format string should be a constant .
func Returnf(format string, into *error) {
	if err, ok := recover().(error); ok && err != nil {
		*into = fmt.Errorf(format, err)
	}
}
func Returnf ( format string , into * error ) { if err , ok := recover ( ) . ( error ) ; ok && err != nil { * into = fmt . Errorf ( format , err ) } }
Returnf should be deferred in functions that pass errors to their caller, pass the named return value that errors should be passed to.
Returnf should be deferred in functions that pass errors to their caller pass the named return value that errors should be passed to .