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From: Guillaume Melquiond (guillaume.melquiond_at_[hidden])
Date: 2003-10-26 04:54:04

En réponse à "David A. Greene" <greened_at_[hidden]>:

> Hi,
> I've been attempting to use the interval library on a
> MIPS/IRIX machine without luck. The problem is that
> there is no native rounding support and we don't have
> a C99 environment. I'm getting "Please specify rounding
> control mechanism" errors from the preprocessor.
> The thing is, I don't need a rounding mode. I simply
> want to use intervals of type int. I could understand
> the error if I was trying to use floating-point intervals
> but shouldn't I be able to specify intervals that don't
> require rounding? Or even specify intervals with a policy
> that ignores rounding?
> Has anyone run into this problem before? Is there a
> workaround?
> -Dave

The header "numeric/interval.hpp" is meant to include almost all the other
public headers of the library, and in particular the ones responsible for
floating-point support. To avoid this problem, just use the other headers (all
the headers are public except the ones in the "detail" subdirectory).

For example, instead of using:

  #include <boost/numeric/interval.hpp>

you should use:

  #include <boost/numeric/interval/interval.hpp>
  #include <boost/numeric/interval/utility.hpp>
  #include <boost/numeric/interval/arith.hpp>

To know which headers you may need, you should refer to the documentation:




PS: I don't know what you intend to do with the library, but please keep in mind
that just using the type boost::numeric::interval<int> does not provide any
guarantee of the inclusion property.

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