PROTOTYPE:

[Stephen Colebourne]

Derek Foster wrote:
> Do others have opinions as to whether this feature (the ability to put underscores at the beginning or end of sequences of digits within a number, such as "0x_5", "0x5_" or "52_") is either desirable or problematic? It seems that Bruce is feeling that it's unnecessary and possibly confusing, and I am now finding myself leaning somewhat towards that opinion myself, although if someone were to present a good example of a case where it might be useful, I might change my mind.

I would have expected no underscores at start or end, and no adjacent 
underscores. That seems like the main case.

Stephen