bug#14871: flonum procedures returning non-flonum objects

[Mark H Weaver]

Göran Weinholt <address@hidden> writes:

> one property of the flonum procedures in r6rs is that they return
> flonums. This should not happen:
>
> scheme@(guile-user)> (import (rnrs))
> scheme@(guile-user)> (fllog -1.0)
> $1 = 0.0+3.141592653589793i
> scheme@(guile-user)> (flsqrt -1.0)
> $2 = 0.0+1.0i
> scheme@(guile-user)> (flasin 3.0)
> $3 = 1.5707963267948966-1.762747174039086i
> scheme@(guile-user)> (flacos 3.0)
> $4 = 0.0+1.762747174039086i
> scheme@(guile-user)> (flexpt -1.0 0.5)
> $5 = 6.123031769111886e-17+1.0i
>
> These results are not flonums. In r6rs-lib it says "the result may be a
> NaN or some unspecified flonum." So returning +nan.0 would be better.

Fixed in ad922d065c5f8b01c4ace3ee34d26300409e44fa.

    Thanks!
      Mark