source: doc/theses/andrew_beach_MMath/code/throw-other.cpp@ b766c9b7

Last change on this file since b766c9b7 was f79ee0d, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago

update exception benchmarks

  • Property mode set to 100644
File size: 1.1 KB
Line 
1// Throw Across Other Handler
2#include <chrono>
3#include <cstdlib>
4#include <exception>
5#include <iostream>
6#include <iomanip>
7
8using namespace std;
9using namespace std::chrono;
10
11struct EmptyException : public std::exception {};
12
13struct NotRaisedException {};
14
15void unwind_other(unsigned int frames) {
16 if (frames) {
17 try {
18 unwind_other(frames - 1);
19 } catch (NotRaisedException &) {
20 asm volatile ("# catch block (stack)");
21 }
22 } else {
23 throw (EmptyException){};
24 }
25}
26
27int main(int argc, char * argv[]) {
28 unsigned int times = 1;
29 unsigned int total_frames = 1;
30 if (1 < argc) {
31 times = strtol(argv[1], nullptr, 10);
32 }
33 if (2 < argc) {
34 total_frames = strtol(argv[2], nullptr, 10);
35 }
36
37 time_point<steady_clock> start_time = steady_clock::now();
38 for (int count = 0 ; count < times ; ++count) {
39 try {
40 unwind_other(total_frames);
41 } catch (EmptyException &) {
42 asm volatile ("# catch block (base)");
43 }
44 }
45 time_point<steady_clock> end_time = steady_clock::now();
46 nanoseconds duration = duration_cast<nanoseconds>(end_time - start_time);
47 cout << "Run-Time (s): " << fixed << setprecision(1) << duration.count() / 1'000'000'000. << endl;
48}
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