#includeThis example code shows a program that uses a persistent reset mechanism to save and restart from the last running state. It first attempts to read the saved state from a binary file called "state.dat". If the file exists, it reads the data into the "state" variable. It then resets the program to the saved state and updates it. Finally, it saves the updated state back to the binary file. If any exceptions are thrown during the process, they are caught and handled. This code can be found in the boost library package in C++. The Boost C++ libraries provide a wide range of functionality, including functionality for persistent storage of program state.#include #include #include using namespace std; int main () { try { // Attempt to read saved state int state = 0; ifstream stateFile("state.dat", ios::in | ios::binary); if (stateFile.is_open()) { stateFile.read((char*)&state, sizeof(state)); stateFile.close(); } // Reset program to saved state // ... // Save updated state state++; ofstream stateFile("state.dat", ios::out | ios::binary); stateFile.write((char*)&state, sizeof(state)); stateFile.close(); } catch (exception& e) { // Handle any exceptions thrown cerr << "Error: " << e.what() << endl; } return 0; }