// Resume Across Fixup
#include <clock.hfa>
#include <fstream.hfa>
#include <stdlib.hfa>									// strto

unsigned int frames;									// use global because of gcc thunk problem

void nounwind_fixup(unsigned int dummy, void (*raised_rtn)(int &), void (*not_raised_rtn)(int &)) {
	void not_raised(int & fixup) {
		fixup = frames + 42;							// use local scope => lexical link
	}

	if (frames) {
		frames -= 1;
		nounwind_fixup(42, raised_rtn, not_raised);
		if ( frames == -1 ) printf( "42" );				// prevent recursion optimizations
	} else {
		int fixup = dummy;
		raised_rtn(fixup);
	}
}

int main(int argc, char * argv[]) {
	unsigned int times = 1;
	unsigned int total_frames = 1;
	if (1 < argc) {
		times = strto(argv[1], 0p, 10);
	}
	if (2 < argc) {
		total_frames = strto(argv[2], 0p, 10);
	}
	frames = total_frames;

	void raised(int & fixup) {
		fixup = total_frames + 42;						// use local scope => lexical link
	}
	void not_raised(int & fixup) {
		fixup = total_frames + 42;						// use local scope => lexical link
	}

	Time start_time = timeHiRes();
	for (int count = 0 ; count < times ; ++count) {
		nounwind_fixup(42, raised, not_raised);
	}
	Time end_time = timeHiRes();
	sout | "Run-Time (s): " | wd(0,1, (end_time - start_time)`ns / 1_000_000_000.);
}