> On Sep 21, 2015, at 11:49 PM, Mark H Weaver <mhw@netris.org> wrote:
> 
>> 2. The comments say integers are converted to exact and floating point
>> to inexact, but the code will convert 1.0 to exact.
> 
> In Scheme terminology, 1.0 is an integer.

But in guile-2.0.11:

scheme@(guile-user)> (exact? (string->number "1.0"))
$1 = #f

I also vote for using string->number: probably faster and more heavily tested.

Matt