#include <boost/filesystem/path.hpp>
#include <iostream>

using boost::filesystem::path;

void replace_extension(path p, const path& extension) {
    std::cout << "replace_extension(" << p << "," << extension << ") = ";
    std::cout << p.replace_extension(extension) << '\n';
}

int main()
{
    // These cases can be acceptable if we consider that filename is empty
    std::cout << "\n"
              << "Replace extension on root-path: (arguable)\n"
              << "------------------------------------------\n\n";

    replace_extension("/","txt");
    replace_extension("C:\\","txt");

    std::cout << "\n"
              << "Replace extension on special file-name\n"
              << "--------------------------------------\n\n";

    replace_extension(".","txt");
    replace_extension("..","txt");
    replace_extension("/foo/.","txt");
    replace_extension("/foo/..","txt");

    std::cout << "\n"
              << "Replace extension on root-name\n"
              << "------------------------------\n\n";

    replace_extension("C:","txt");
    replace_extension("\\\\myserver","txt");

    getchar();
    return 0;
}