![]() ![]() When I now run a genetic algorithm with the parameters, every parameter can be either 0 or 1, depending on the genetic algorithm. Those parameters are declared in Anylogic. 1 Im trying to write the value of a parameter in Anylogic into a specific cell of a Database table. I would like a direct pass-through and not try to guess the implementation details of the underlying library. I have multiple parameters (let's say p1, p2, p3) with which I want to perfom a variation experiment. Re-implement the format string parsing logic of printf()-like functions. I can't think of a way to pass a tuple of arbitrary variables of arbitrary types without making Impl26() a function template. This is as much an experiment and a learning exercise as it is a real problem I'm trying to solve. I know I could use old C-style varargs in my new code, too, but I'd like to see whether it's possible to avoid doing so. In my real code, Impl26() is a virtual member function and therefore cannot be templated. My code specifically interfaces with a library that exposes a printf()-like API which uses C-style var args and that library can't be replaced. Use std::format and/or std::iostream/ std::cout Here are things which I expect people will suggest which will not work for me: Restating my question for clarity (thanks How do I write a non-template function that accepts a single parameter and passes it to something like printf() as multiple arguments? I'm struggling to find a suitable definition for AmazingVariadicArgumentEncoderType and the steps to encode to / decode from it. (The above code is, of course, a distilled version of the real problem I'm trying to solve.) Void VeryOldLibraryFunctionWithPrintfSemantics(const char *fmt. Wrapper(kOpaqueSecretString2, "jenny", 8675309, 'q', argv) Each of these is a valid invocation of Wrapper(). * Encode args here and represent them as encodedArgs. args)ĪmazingVariadicArgumentEncoderType encodedArgs * not sure what syntax to use for decodedArgs here */) VeryOldLibraryFunctionWithPrintfSemantics(fmt, decodedArgs. * Decode encodedArgs here and represent them as decodedArgs (maybe?) Void Impl26(const char *fmt, AmazingVariadicArgumentEncoderType encodedArgs) ![]() mall you ask for BLACK AND WHITE shirt considering two variables of Black and. * Impl26() is NOT templated and accepts a FIXED number of arguments */ Any logic block with n inputs will have a row in its Karnaugh mapping. Typedef /*** what goes here? ***/ AmazingVariadicArgumentEncoderType That is, I would like to be able to write something similar to: /* (1) Encode arbitrary argument lists passed to a variadic function template into a single variable so that (2) this variable can be passed to a different, non-templated function where it is (3) decoded and ultimately consumed by a printf()-like function? Using C++20 instead of C's va_list, can I: ![]() Not sure if the following is possible in C++20 after a long and exhaustive search but asking anyway: ![]()
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