AMDG On 03/10/2011 04:40 PM, er wrote:
I'm submitting this in case someone easily spots a less verbose representation of fabs( x - y )< eps than the one shown below and would like to share it. Using lambda (or variants) only (I know I can write my own functor class). Thanks.
How about using the attached cmath.hpp for phoenix? #include <cmath> #include <boost/function.hpp> #include <boost/lambda/bind.hpp> #include <boost/lambda/lambda.hpp> #include <boost/phoenix/core.hpp> #include <boost/phoenix/operator.hpp> #include "cmath.hpp" int main() { double eps = 0.000001; using namespace boost::phoenix::arg_names; boost::function<bool(double, double)> f = fabs(_1 - _2) < eps; BOOST_ASSERT( f( 0.0, 0 * eps ) ); BOOST_ASSERT( !f( 0.0, eps ) ); } In Christ, Steven Watanabe