[Issue 5231] BigInt lacks a normal toString()

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5231


Steven Schveighoffer <schveiguy at yahoo.com> changed:

           What    |Removed                     |Added
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                 CC|                            |schveiguy at yahoo.com


--- Comment #6 from Steven Schveighoffer <schveiguy at yahoo.com> 2010-11-18 05:10:23 PST ---
(In reply to comment #2)
> That's not really the correct solution.
> BigInt should act like an int. Specifically,
> 
> BigInt b;
> writefln(" b = %d, %x", b, b);
> should just work.
> 
> This issue cannot be resolved until the definition of toString() is changed.
> void toString() is a fundamentally broken design. It's wrong on many levels.

So BigInt's aren't printable via writeln in protest?  I guess I don't
understand why you can't do this:

string toString()
{
  string retval;
  void sink(const(char)[] data) { retval ~= data; }
  toString(&sink, null);
  return retval;
}

It doesn't hurt/limit the current toString, does it?  And then it makes bigints
printable via writeln.

BTW, toString's delegate is not scope, so you are going to allocate a closure
for that...

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