Hello Steven, Steven Watanabe wrote:
- Is there a way to work around boost::lambda:bind's limitation concerning the binding of overloaded functions? The required static_cast to the function pointer (referring, e.g., a function from boost/units/cmath.hpp) is tedious.
The problem is avoided by creating a function object. (untested)
struct sin_t { template<class Args> struct sig { typedef typename boost::tuples::element<0>::type arg1_type; BOOST_TYPEOF_NESTED_TYPEDEF(nested, (sin(make<arg1_type>()))); typedef typename nested::type type; }; template<class T> ... operator()(const T& arg) { return(sin(arg)); } };
I finally came around to test your proposed solutions: I got it working in the attached small example for two cases sin() and pow<static_rational<N, D> >(). What do you think about a header cmath_functor.hpp, which would collect functors under, e.g., boost::units::functor to replace the cmath functions in lambda expressions? Best regards, Torsten