Converting qreal to qstring

[Nujabrn]

Hey forumnokia,

Im trying to convert a qreal to a QString. I tried using the QString::setNum which is giving me an error. I added the simple code and error message i got, but can't figure out how to write and use the object.



Also, if anyone knows another, maybe smarter way to convert a qreal to a QString, im very open for solutions.

[danhicksbyron]

QString::number

Or,

string1.setNum(real1,'g', 6);

[Nujabrn]

QString::number

Or,

string1.setNum(real1,'g', 6);

I can't call setNum from string1 (its a char). I tried creating a new string and use setNum but the error message tells me its an invalid conversion from 'char*' to 'char¨'.

[danhicksbyron]

Have you looked at the spec? Do you know the difference between a regular function and a static function? How do you expect to set a float value into a char?

[Zlatomir]

Why do you use char array and don't use QString?

If you really need char array you can use:

// string is a QString
//and string.setNum(qrealVaribleName); //was used to get the string representation of qreal variable

const char* str = string.toLatin1().data(); //valid until the QString goes out of scope or you modify the QString

// you can copy the c-style string if you really need a copy (strcpy)

[Nujabrn]

Why do you use char array and don't use QString?

If you really need char array you can use:

// string is a QString
//and string.setNum(qrealVaribleName); //was used to get the string representation of qreal variable

const char* str = string.toLatin1().data(); //valid until the QString goes out of scope or you modify the QString

// you can copy the c-style string if you really need a copy (strcpy)

Hi there, i don't have to use a char. I just thoght it was the only way to do it.
Is there an easier way to convert a double to a String?

[danhicksbyron]

Is there an easier way to convert a double to a String?

RTFM: http://doc.qt.nokia.com/4.7-snapshot....html#number-2