return [func](auto&&... args) {

try {

func(std::forward<decltype(args)>(args)...);

} catch(std::iostream::failure& e) {

return std::string("Exception caught: ") + e.what();

} catch(...) {

// This ... catch clause will capture any exception thrown

return std::string("Exception caught: default exception");

}

return std::string("OK"); // No exceptions!

};

return [func](auto&&... args) {

std::cout << func(std::forward<decltype(args)>(args)...) << std::endl;

};

return [func](auto&&... args) {

auto now = std::chrono::system_clock::now();

std::time_t time = std::chrono::system_clock::to_time_t(now);

func(std::forward<decltype(args)>(args)...);

std::cout << "> Logged at " << std::ctime(&time) << std::endl;

};

// for demo purposes, always fail

std::string msg = std::string(path) + std::string(" not found!");

throw std::iostream::failure(msg.c_str());

// some demo dummy data for our mock file read...

char* buff = 0;

int sz = 0;

std::cout << "First read fails silently" << std::endl;

file_read("missing_file.txt", buff, &sz);

std::cout << "\nSecond read fails and prints to the console with time:" << std::endl;

print_file_read("missing_file.txt", buff, &sz);

return 0;