On segunda-feira, 5 de agosto de 2013 21:08:45, Rollastre Prostrit wrote:
> QByteArray bytes = f.readAll();
>
> char* bb = bytes.data();
> std::string str;
> for (int i=0; i<f.size(); ++i)
> {
> str += bb[i];
> }
>
> std::stringstream stream;
> stream << str;That seems wrong or, at least, weird. You're appending byte-by-byte from the file into the string. That can't be fast... Doesn't std::string have a method that lets you set a full array of bytes (pointer and size)? Or, for that matter, doesn't stringstream have it? I confess I don't know: the lack of such convenience API is what keeps me from using the Standard Library. Another alternative is for you to derive from std::istream and create your own QFile-based stream. Or a QByteArray-based one, to match std::stringstream. At the very least, to make it more efficient, you should try to use QFile::map(). For uncompressed resources, this will save you a memory allocation into the QByteArray. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center
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