math/big: Rat.SetString accepts fractions and float strings, but not hexadecimal floats

[griesemer]

See https://play.golang.org/p/cAMvG8O0V5J .

This looks like a simple oversight. It appears that at least for hexadecimal floats, the change is as simple as not requesting base=10 in the implementation of Rat.String. We might also want to accept general integer values.

At the very least, this should be documented if we don't change it.

[griesemer]

cc: @stamblerre Just FYI.

[gopherbot]

Change https://golang.org/cl/158397 mentions this issue: math/big: document that Rat.SetString accepts _decimal_ float representations

[gopherbot]

Change https://golang.org/cl/168237 mentions this issue: math/big: accept non-decimal floats with Rat.SetString