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Could you please send a complete program that demonstrates

[mailto:boost-bounces@lists.boost.org] On Behalf Of Niitsuma Hirotaka the problem?

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Thanks.

plz see roc_curve.hpp

In this file accumulators.roc_curve is implimented, but I can not complie this by some err. May be defining accumulators inside accumulators causes some problem.

roc_distribution.hpp is simple impl without using accumulators inside accumulators. It works. test program is test.cpp

If I understand the implementation of the library correctly nesting accumulators within other accumulators is not a problem. In fact IIRC that was one of the examples. What might be a problem though is having multiple instances of the same accumulator. I was meaning to ask Eric about that but I wanted to try it first, looks you got there before me :) Matt Scanned by McAfee GroupShield {X3BTB534}