AMDG On 11/6/2010 9:02 PM, Mostafa wrote:

Hi all,

Correct me if I'm wrong, using boost::function involves a virtual function call.

Not exactly, but close enough for practical purposes.

If so, then does nesting boost::function calls result in nested (multiple) virtual function calls?

Yes.

For example:

int foo(float);

boost::function<int (float)> f1 = foo; boost::function<double (int)> f2 = f1;

Does f2(5) result in two virtual functions being called on the part of boost::function?

(I couldn't find the answer in the documentation and reading the source code I got lost in the macros.)

In Christ, Steven Watanabe