<![CDATA[copying byte to Qstring]]>hi
i am getting an error while using the strcpy

strcpy(arr[i][j], str); here arr is a 2D array and str is Qstring

i tried using qstrcpy also still the same error
error says i cannot copy a connst char * to QString

i canot change the data type of both of them because it is used in many places in the prooject and i need arr as 2D array only same with the str also i cannot change its datatype

this is very urgent please someone help me out thanks in advance

]]>https://forum.qt.io/topic/132124/copying-byte-to-qstringRSS for NodeWed, 07 Oct 2026 09:15:00 GMTFri, 19 Nov 2021 02:59:18 GMT60<![CDATA[Reply to copying byte to Qstring on Fri, 19 Nov 2021 05:24:30 GMT]]>@seok said in copying byte to Qstring:

error says i cannot copy a connst char * to QString

Of course, strcpy has no idea what QString is (check its signature).
Why do you want to use strcpy in a C++ Qt application?
You can use https://doc.qt.io/qt-5/qstring.html#append-1 instead.

str.append(QChar(arr[i][j]));
]]>https://forum.qt.io/post/690780https://forum.qt.io/post/690780Fri, 19 Nov 2021 05:24:30 GMT<![CDATA[Reply to copying byte to Qstring on Fri, 19 Nov 2021 04:23:52 GMT]]>@ahmad122 i will try this thank you

]]>https://forum.qt.io/post/690775https://forum.qt.io/post/690775Fri, 19 Nov 2021 04:23:52 GMT<![CDATA[Reply to copying byte to Qstring on Fri, 19 Nov 2021 03:56:02 GMT]]>@seok said in copying byte to Qstring:

strcpy(arr[i][j]
Try using this one:
strcpy(arr[i][j], str.toStdString().c_str());
or
qstrcpy(arr[i][j], str.toStdString().c_str());

]]>https://forum.qt.io/post/690774https://forum.qt.io/post/690774Fri, 19 Nov 2021 03:56:02 GMT