Of course it should be a api but it should be either explicitly requiring a format OR (more likely) default to an invariant format. That is, if I do this

Of course it should be a api but it should be either explicitly requiring a format OR (more likely) default to an invariant format. That is, if I do this float f = 123.456; Console.WriteLine(“value is “+f); The output shouldn’t vary depending on whether it’s run in France or the US (which it does by default). For parsing, the argument should even be explicitly required I think. So float f = Float.Parse(“1,23”, frenchLocale); So that it’s not ever forgotten or the reader has to wonder if the author forgot it.