ch3_3.cc

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#include "Permute.hh"
 
int main(int argc, char const *argv[])
{
    // time
    time_t rawtime;
    struct tm *timeinfo;
 
    time(&rawtime);                                                 // Get the current calendar time
    timeinfo = localtime(&rawtime);                                 // Convert time_t to tm as local time
    printf("Current local time and date: %s\n", asctime(timeinfo)); // Convert tm structure to string
 
    clock_t t;
 
    if (argc > 1)
    {
        // std::cout << "\nNon-recursive permute(STL):\n";
        // ch3_3::permute_stl(std::string(argv[1]));
 
        std::cout << "Recursive permute:\n";
        t = clock();
        ch3_3::permute_rec(std::string(argv[1]));
        t = clock() - t;
        printf("permute_rec(%s) took %ld clicks (%f seconds).\n", argv[1], t, ((float)t) / CLOCKS_PER_SEC);
 
        std::cout << "\nNon-recursive permute(Stack):\n";
        t = clock();
        ch3_3::permute_loop(std::string(argv[1]));
        t = clock() - t;
        printf("permute_loop(%s) took %ld clicks (%f seconds).\n", argv[1], t, ((float)t) / CLOCKS_PER_SEC);
 
        return 0;
    }
 
    std::string str;
    do
    {
        std::cout << "\nPlease input a string: ";
        std::cin >> str;
        if (!std::cin.fail())
            break;
 
        std::cin.clear();
        std::cin.sync();
    } while (true);
 
    std::cout << "\nNon-recursive permute(STL):\n";
    t = clock();
    ch3_3::permute_stl(str);
    t = clock() - t;
    printf("permute_stl(%s) took %ld clicks (%f seconds).\n", str.c_str(), t, ((float)t) / CLOCKS_PER_SEC);
 
    std::cout << "Recursive permute:\n";
    t = clock();
    ch3_3::permute_rec(str);
    t = clock() - t;
    printf("permute_rec(%s) took %ld clicks (%f seconds).\n", str.c_str(), t, ((float)t) / CLOCKS_PER_SEC);
 
    std::cout << "\nNon-recursive permute(Stack):\n";
    t = clock();
    ch3_3::permute_loop(str);
    t = clock() - t;
    printf("permute_loop(%s) took %ld clicks (%f seconds).\n", str.c_str(), t, ((float)t) / CLOCKS_PER_SEC);
 
    return 0;
}