See this project to install GDB pretty printers for the QT5 objects (QString, QMap, etc...)

    https://github.com/Lekensteyn/qt5printers

See this GDB documentation for writing/using pretty printers.

    https://sourceware.org/gdb/onlinedocs/gdb/Pretty-Printing.html


Note, this "old" style of printing a QString has a problem in Seer. It only prints on
the "GDB output" log and each letter of the string appears on its own line. Not recommended
to use it.

    define printqs5dynamic
        set $d=(QStringData*)$arg0.d
        printf "(Qt5 QString)0x%x length=%i: \"",&$arg0,$d->size
        set $i=0
        while $i < $d->size
            set $c=$d->data()[$i++]
            if $c < 32 || $c > 127
                printf "\\u%04x", $c
            else
                printf "%c" , (char)$c
            end
        end
        printf "\"\n"
    end