[Boost-users] template concept question

Subject: [Boost-users] template concept question
From: Alan Tennant (alan2here_at_[hidden])
Date: 2010-03-08 18:13:02

I was reading about boosts concepts and I thought.

Can I ask inside a template function if a member exists on a parameter of
the function.

For example.

template <typename T>
void func(T in)
{
exists(in, foo);
}

Where the "exists" line would return true if "in" had a member "foo"
otherwise false.