Bob Moran wrote on Wednesday, September 03, 2014 12:45 PM > > One added note: My GUI is using QT4, where in this case the SQL text > goes something like: > > QString qstr = "select id, step, temp from protocols where id > = %1"; > qstr = qstr.arg(id); > char * str = (char*)qPrintable(qstr); > sqlite3_prepare_v2( db, str, qstr.Length+1, &stmt, NULL) >
That's pretty different than the pseudocode you presented earlier. >From the docs for qPrintable http://qt-project.org/doc/qt-4.8/qtglobal.html#qPrintable ********************** Returns str as a const char *. This is equivalent to str.toLocal8Bit().constData(). The char pointer will be invalid after the statement in which qPrintable() is used. This is because the array returned by toLocal8Bit() will fall out of scope. **************************** Your str is likely pointing to memory that has been freed? Erik ---------------------------------------------------------------------- This message, and any attachments, is for the intended recipient(s) only, may contain information that is privileged, confidential and/or proprietary and subject to important terms and conditions available at http://www.bankofamerica.com/emaildisclaimer. If you are not the intended recipient, please delete this message. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
