On 03/18/2010 10:46 PM, Don Clugston wrote:
I've converted my BigInt module from Tango to Phobos2. It's a great
test of the new operator overloading!
After 2.042 comes out, I'd like to add it to Phobos.
Awesome! How do the operators hold?
A couple of issues:
(1) We need somewhere in Phobos for implementation code (of which
there is a considerable amount for BigInt).
I propose std.internal.math.XXX; for all math related modules. This
would keep everything tidy and hidden.
None of this will be user-visible.
Sounds good.
(2) Syntax for conversion to string is undecided. Strawman:
void toString(void delegate(const(char)[]) sink, string format);
where format is currently limited to:
d for decimal
x for lower case hex
X for upper case hex
s or null for "whatever" for conformity.
but will be extended in the future. If format is "", defaults to decimal.
Sink takes a const(char)[] so that BigInt can keep reusing the same buffer.
Eventually, whatever is chosen will require some changes to
std.format, but I'd just like to get a reasonable first cut for the
initial release.
That's fine; we need to look again at std.format anyway.
Speaking of which - do we have good code for parsing and writing
floating point numbers? I need it for unformat().
Andrei
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