QString to char*

Question

I am trying to convert QString into char*. The code that i have been using is

QString username = useradd->text();
QByteArray un=username.toLatin1();
const char *str = un.data();

Where useradd is the name given to "lineedit"

On compilation the following error occurs

class QString has no member named toLatin1

Are you sure there isn't another class with the same name defined somewhere? or your headers aren't broken? — Iharob Al Asimi, Dec 29 '14 at 15:24
Why are you trying to use Latin1? It's almost 2015 outside for Bob's sake! Use UTF-8. — n. 1.8e9-where's-my-share m., Dec 29 '14 at 15:38
Duplicate of duplicate http://stackoverflow.com/questions/5505221/converting-qstring-to-char — user2672165, Dec 29 '14 at 16:05

score 1 · Answer 1 · answered Dec 29 '14 at 15:45

1

This way: QString::toStdString()::c_str()

answered Dec 29 '14 at 15:45

Ivan

Be sure to not take .c_str() on a temporary. – user2672165 Dec 29 '14 at 16:11
please can you suggest anything using QByteArray because i am not being able to define it correctly as i am new to QT3.3 – user3639779 Dec 29 '14 at 16:43
Qt3.3? I hope this is a legacy program, as Qt 4.8 is really as far back in time as you probably want to go otherwise. – Nicolas Holthaus Dec 29 '14 at 17:31

score 0 · Answer 2 · answered Dec 29 '14 at 15:48

0

If you are using only once, like in a debug line, use this:

This is equivalent to str.toLocal8Bit().constData().

qDebug() << qPrintable(myString);

answered Dec 29 '14 at 15:48

phyatt

2 Answers2