dmd 1.046 and 2.031 releases

["Jérôme M. Berger"]

Andrei Alexandrescu wrote:
> Jérôme M. Berger wrote:
>>  - A floating point range should allow you to specify the iteration 
>> step, or else it should allow you to iterate through all numbers that 
>> can be represented with the corresponding precision;
> 
> We don't have that, so you'd need to use a straigh for statement.
> 

struct FloatRange {
    float begin, end, step;
    bool includeBegin, includeEnd;

    int opApply (int delegate (ref float) dg) {
       whatever;
    }

    whatever;
}

>>  - The second issue remains: what if I want to include b but not b+ε 
>> for any ε>0?
> 
> real a, b;
> ...
> for (real f = a; f <= b; update(f))
> {
> }
> 
> I'd find it questionable to use ranged for with floats anyway.
> 
	So would I. But a range of floats is useful for more than iterating 
over it. Think interval arithmetic for example.

		Jerome
-- 
mailto:jeberger at free.fr
http://jeberger.free.fr
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