File slurping, C++ stye

slurp.cpp

std::string slurp(const std::string& filename)
{
    // Open the file into an input file stream
    std::ifstream ifile(filename, std::ios::in | std::ios::binary | std::ios::ate);
    // Check that the file exists
    if (ifile) {
        std::string str;

        // Move to the end of the file
        ifile.seekg(0, std::ios::end);
        // Resize the string to the length of the file.
        str.resize(ifile.tellg());
        // Move back to the beginning of the file
        ifile.seekg(0, std::ios::beg);

        // Read the entire file into str
        ifile.read(&str.front(), str.size());

        return str;
    }
    throw;
}