[boost] MPL - mpl::sequence to std::sequence

From: Jaap Suter (boost_at_[hidden])
Date: 2004-10-09 19:40:03

Hi,

what is the easiest way to convert an mpl::sequence to an std::sequence?

I'm using such conversions a lot when unit-testing meta-code. I just wrote 
two versions of algorithms, a compile-time and the runtime one, and then 
compare their outputs.

I recall hearing something about mpl::for_each having defined an operator () 
for runtime purposes, but the details don't seem to be documented anywhere.

I came up with the attached code, of which the "to_compile_time" might 
actually be of general interest. It's a function that converts a runtime 
integer to a compile time integer. Code-generation-wise it's a horror and it 
could be more generic, but it gets the job done for me. I'd like to hear if 
there are more elegant solutions for this though, as it seems like too much 
code.

Thanks,

Jaap Suter