C++ Qt vs. STL (1)

/* C++/STL Version */

// std::string lacks a trim function; this is the shortest workaround
void trim(std::string &str)
{
    std::stringstream trimmer;
    trimmer << str;
    str.clear();
    trimmer >> str;
}

size_t HeaderCallback( void *ptr, size_t size, size_t nmemb, void *userdata)
{
    std::string hdr((char *)ptr, bytes);
    size_t colon = hdr.find(':');
    if (colon == std::string::npos)
        return bytes;
    std::string key = hdr.substr(0, colon);
    trim(key);
    std::string value = hdr.substr(colon+1);
    trim(value);
    // ...
    return bytes;
}

/* C++/Qt Version */

size_t HeaderCallback( void *ptr, size_t size, size_t nmemb, void *userdata)
{
    QString hdr = QString::fromAscii((char *)ptr, bytes);
    if (!hdr.contains(':'))
        return bytes;
    QString key = hdr.section(':', 0, 0).trimmed(); // section() splits your string with ease
    QString value = hdr.section(':', 1).trimmed();
    // ...
    return bytes;
}