test2.cpp

#include <stdio.h>
#include "typelist.h"

using namespace iatsbg;

// This whole thing would be a lot cleaner if c++ had a static if
#define ADD_RETURN_TYPE(type) \
	template<typename T> static T cast(type); \
	template<> type cast(type val) { return val; }

ADD_RETURN_TYPE(const char*)
ADD_RETURN_TYPE(int)
// void needs a slightly diffrent template
template<typename T> static T cast();
template<> void cast() {}

#define multiReturn(x) return cast<typename typelist_nth<types, pass>::type>(x)
#define multiFunc template<int pass> typename typelist_nth<types, pass>::type
typedef typelist_make<int, const char *, void> types;

multiFunc test() {
	if(pass == 1) {
		multiReturn("string");
	} else if(pass == 0) {
		multiReturn(1);
    } else {
		printf("This is the 3rd pass!\n");
		multiReturn();
	}
	printf("foobared\n");
}

int main(int argc, char **argv) {
	printf("%s\n", test<1>());
	printf("%i\n", test<0>());
	test<2>();
	return 0;
}