> I don't think that's correct, absent some no-true-scotsman gymnastics.

Yeah, I think OP's claim is not valid. Even .NET provides System.Decimal, which by design and explicitly mentions financial calculations.

Taken from the intro docs:

https://learn.microsoft.com/en-us/dotnet/fundamentals/runtim...

> The Decimal value type is appropriate for financial calculations that require large numbers of significant integral and fractional digits and no round-off errors.