CODEWITHSUNDEEP
c++macrospragma
Rafael Fontes
Rafael Fontes

Reputation: 1353

C++ custom #pragma

I would like to know how to make the compiler understand a customized argument for #pragma macro.

My goal is to execute external script using macro, I suppose using #pragma is the way to go; if there are other ways to do so, please let me know.

Syntax would be something like:

#pragma add_controller(class_name, "class_alias")

so that I can generate a dynamic .h file containing the following:

register_controller<class_name>("class_alias");

and append to the end of file everytime the compiler interpret this #pragma.

Upvotes: 6

Views: 3078

Answers (1)

kuroi neko
kuroi neko

Reputation: 8641

pragmas are builtin features of a compiler, and compiler-specific. You can't change or extend them in the general case, unless you're willing to tamper with the compiler itself.
Asking programmers to use a custom built compiler is probably not the best way to make your code more useable :).

For your example, you could use a macro:

#define add_controller(name, alias) register_controller<name>(alias)

and use it like so:

add_controller(whatever_controller, "whatever_alias");

Upvotes: 7

Related Questions