John Femiani wrote:

...

Hi,

After programming with Python and switching back to C++, I am missing the flexibility of a scripted language.

Specifically, I am annoyed at having to specify the arguments of a function at compile time. Is there anyway I can avoid specifying the exact arg structure? I thought boost might do this somehow?

Say for example, I have a message handler function. I want to be able to send all sorts of arguments to the same function, which can then deduce what to do according to the data held in those args. I don't want to have to overload everything as I am passing these message handlers around using boost::function/boost::bind.

Are you thinking of named arguments, or do you want 'isinstance'?

I was hoping to be able to call one function with different args, wrapping those args somehow. In python, I could call a function with a list, dict or tuple. Since this one object was the argument, it didn't matter what it contained. I know I could pass a vector in C++, but this needs a single data type. In python I could call: MyFunc((1, "2", anObject)) # - all in a tuple MyFunc(("aardvark", 42)) # another tuple Anyway to replicate this very convenient functionality? Si

if the number of types to be passed is known at compile time, using boost::variant<type1, type2, ...> instead of boost::any results in faster code. -----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Simon Pickles Sent: Friday, July 11, 2008 13:45 To: boost-users@lists.boost.org Subject: Re: [Boost-users] Passing dynamic arguments with boost? peter_foelsche@agilent.com wrote:

for variable number of arguments:

void myFunction(std::vector<boost::any> &);

or for arguments by name:

void myFunction(std::map<std::string, boost::any> &);

Thanks, this is really interesting.... _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users