Subject: Re: [boost] Interest in a list comprehension library?
From: joel falcou (joel.falcou_at_[hidden])
Date: 2010-12-19 14:40:12
On 19/12/10 19:40, Brent Spillner wrote:
> I uploaded sample code to the Vault (in the "Miscellaneous/"
> directory) that provides a concise notation for list comprehensions.
> The comprehensions are evaluated lazily and can be used to populate a
> std::list, vector, or deque, appended to the same, inserted after a
> given iterator, or interpreted as a boost::range, including
> compatibility with BOOST_FOREACH. Containers, iterator-defined
> ranges, or nullary function objects can be used as generators, and
> arbitrary function objects can be used to specify filter conditions.
> I've tested this so far with GCC 4.4.4, GCC 4.5.2, and Clang 2.9,
> using Boost 1.42 and 1.45, and with and without -std=c++0x. Reports
> of success/failure with other environments are most welcome. The code
> is still in a prototype stage, so I'm more than happy to take design
> suggestions and would love to hear about use cases I've overlooked.
> If there's sufficient interest I will work on getting it to production
> quality and writing some real documentation. I apologize in advance
> for wasting everybody's time if something like this already exists in
> Phoenix; I'm not too familiar with it but I skimmed the docs and
> didn't see anything.
I like the idea :) However, how did you manage the lazy part ? Do you roll
your own lazy stuff or do you rely on proto ?
If the former, I encourage you to jump the agte and do the latter :)
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