On Mon, Feb 7, 2011 at 2:23 PM, Edward Diener <eldiener@tropicsoft.com> wrote:
On 2/7/2011 11:08 AM, Lorenzo Caminiti wrote:
2 TOWARD THE NORMAL PARAMETER LIST SYNTAX (C99 preprocessor)
Using variadic macros I _might_ be able to use a variable length tuple (can I? I am not very familiar with these yet...) instead of a sequence to represent the function parameters:
(void) (f)(int x, double& y, const bind a, const bind& b, bind& c, bind d) // [2]
I think, this is a great simplification over [0] because it is the exact same syntax used by C++ to declare function parameters!
Please look at my variadic_macro_data library in the sandbox for how you can
Yes, I will use your library when I start coding. Thanks a lot!
use variadic macros with the Boost PP library. And yes, variadic macros can give you a variable length number of elements. You can also use my library to get the number of elements of a Boost PP tuple as well as any element within the Boost PP tuple, and you can use my library to get the number of elements of variadic data as well as any element of the variadic data.
The main thing to remember about variadic macros, which is their main limitation, is that within any variadic macro specified the variadic data must come at the end of the macro when the macro is defined using the ... notation.
-- Lorenzo