[boost] [accumulators] broken on msvc

Subject: [boost] [accumulators] broken on msvc
From: Jürgen Hunold (jhunold_at_[hidden])
Date: 2014-06-15 12:03:41

Hi!

It seems that Boost.Accumulators is broken for all msvc builds with error 
messages like:

boost/accumulators/framework/accumulators/reference_accumulator.hpp(72) : 
error C2061: syntax error : identifier 'BOOST_PP_CAT'
boost/accumulators/framework/accumulators/reference_accumulator.hpp(72) : 
fatal error C1903: unable to recover from previous error(s); stopping 
compilation

(from 
http://www.boost.org/development/tests/develop/developer/output/teeks99-02e-win2008-64on64-boost-bin-v2-libs-accumulators-test-count-test-msvc-12-0-debug-iterator_debugging-off-link-static-threading-multi.html)

The regression page
http://www.boost.org/development/tests/develop/developer/accumulators.html
shows _all_  msvc builders failing.

My own code broke with an identical message sometime last week. 

Any ideas?

Yours,

Jürgen
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