Trivial app segfaults when there are more than two routes

[Deleted user]

This trivial served app below segfaults immediately when there are more than two routes. It works fine as long as only /route1 and /route2 are present, but as soon as I add /route3, it segfaults.

This does not happen if served is built with build type set to Debug. I have also tried building served with build type set to RelWithDebInfo and running the app in a debugger. The debugger pointed out multiplexer.cpp:139 as the culprit, which I find hard to believe since it's just std::vector::push_back:

_handler_candidates.push_back(
	path_handler_candidate(get_segments(path), served::methods_handler(_base_path + path, info), path));

The app:

#include <served/plugins.hpp>
#include <served/served.hpp>

int main(int, char **) {
    served::multiplexer mux;
    mux.use_after(served::plugin::access_log);
    mux.handle("/route1").get([](served::response &response, const served::request &) {
        response.set_body("1");
    });
    mux.handle("/route2").get([](served::response &response, const served::request &) {
        response.set_body("version2");
    });
    mux.handle("/route3").get([](served::response &response, const served::request &) {
        response.set_body("3");
    });
    served::net::server server("127.0.0.1", "8080", mux);
    server.run();
    return 0;
}

If I comment out

    mux.handle("/route3").get([](served::response &response, const served::request &) {
        response.set_body("3");
    });

it works fine, but with three or more routes, boom!

[Deleted user]

Actually this is enough to reproduce:

#include <served/served.hpp>

int main(int, char **) {
    served::multiplexer mux;
    mux.handle("/version/1").get([](served::response &, const served::request &) {
    });
    mux.handle("/version/2").get([](served::response &, const served::request &) {
    });
    mux.handle("/version/3").get([](served::response &, const served::request &) {
    });
    return 0;
}

[Deleted user]

This looks like a stdlib bug on macOS. Compiling compilers other than system default works just fine.

[Jeffail]

Hey @krzysztofwos, I can't reproduce this myself and the issue is pretty old now, I'm closing but feel free to reopen if this issue still impacts you.