[LLVMdev] select1st, select2nd

[Scott Conger]

I believe he's referring to this:

http://www.sgi.com/tech/stl/select1st.html

On Fri, Jul 15, 2011 at 1:29 PM, Chris Lattner <clattner at apple.com> wrote:
>
> On Jul 15, 2011, at 12:35 PM, David Greene wrote:
>
>> I've run into a use case where I'd like to use a mapped_iterator to
>> iterator the 1st (or 2nd) items in a sequence of std::pairs.  Does
>> select1st/select2nd exist somewhere within LLVM or is there some
>> equivalent?  If not, I'll add it.
>
> Is this making the resultant loop simpler?  C++ without lambda's isn't very friendly to functors, what is the before/after effect of doing this?
>
> -Chris
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