> Why won't this work:
>
> struct Pi_impl
> {
> operator float() const
> { return 3.14...; }
>
> operator double() const
> { return 3.14.................; };
>
> operator long double() const
> { return 3.14..............................;}
> };
>
> namespace boost
> {
> const Pi_impl pi;
> }
>
> ?
Template function overload resolution is one:
std::abs(pi); // oops error
another is that it is not extensible: how for example should I add constants
for boost::interval? Or some other as yet unthought of (or user defined)
type?
John Maddock
http://ourworld.compuserve.com/homepages/john_maddock/index.htm
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