Efficiently streaming data to associative array
Steven Schveighoffer via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Wed Aug 9 06:36:46 PDT 2017
On 8/8/17 3:43 PM, Anonymouse wrote:
> On Tuesday, 8 August 2017 at 16:00:17 UTC, Steven Schveighoffer wrote:
>> I wouldn't use formattedRead, as I think this is going to allocate
>> temporaries for a and b.
>
> What would you suggest to use in its stead? My use-case is similar to
> the OP's in that I have a string of tokens that I want split into
> variables.
using splitter(","), and then parsing each field using appropriate
function (e.g. to!)
For example, the OP's code, I would do:
auto r = line.splitter(",");
a = r.front;
r.popFront;
b = r.front;
r.popFront;
c = r.front.to!int;
It would be nice if formattedRead didn't use appender, and instead
sliced, but I'm not sure it can be fixed.
Note, one could make a template that does this automatically in one line.
-Steve
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