Re: [Boost-users] MPL. Nested Lambdas

AMDG OvermindDL1 wrote:

On Sat, Feb 20, 2010 at 1:21 PM, Steven Watanabe wrote:

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dilas dilas wrote:

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Please, tell me if one can write nested lambda expressions like

" template struct pairs: bm::fold > >{}; template struct AllPairs: bm::fold, pairs<_1,Seq2,_2> >{}; "

without using intermediate metafunctions.

This ought to work, since the placeholders in AllPairs will be expanded before pairs is ever invoked.

I do not know about Lambda, but I know that you can create sub-functors in phoenix just fine, it has specific constructs for that too.

If you do not know, Boost.Phoenix is a complete replacement for Boost.Lambda, plus a lot more. http://www.boost.org/doc/libs/1_42_0/libs/spirit/phoenix/doc/html/index.html

Umm, Phoenix may be a replacement for Boost.Lambda, but it doesn't replace Boost.MPL.Lambda. In Christ, Steven Watanabe