How to convert float64 to QString

rockon209

Hello Everyone,

How i can convert float64 to QString. I am getting a variable value from a function with float64 type and i want to display it in QTextEdit. How I can do it. Thanks in advance.

VRonin

QString floatToString = textEdit->locale().toString(floatValue,'f');

rockon209

@VRonin
I want to dsiplay it in QTextedit, dont want to set the value tof textedit to QString
for example
float64 value = 2.33

QTextEdit *textbox = new QTextEdit;
textbox->setText(value)

jsulm

@rockon209

QString floatToString = QLocale::system().toString(floatValue,'f');
textbox->setText(floatToString);

rockon209

@VRonin I am getting the following error
error: no matching function for call to 'QLocale::toString(float64 [1], char)'
QString floatToString = QLocale::system().toString(data1,'f');

jsulm

@rockon209 Why do you use float64 instead of float or double?
If you want to use float 64 then cast it to float or double first.
And toString isn't a static method - you need a QLocale instance to use it.

beecksche

If you mean float64 is equal to double, I would use the static function QString::number.

double value = 1.234567:
QString num = QString::number(value);

rockon209

@jsulm @beecksche
I am getting the value from a function and that function gives float64 value as return. I thought about that but dont know how to cast float64 to float. If you know it please let me know.

jsulm

@rockon209

double temp = static_cast<double>(value);

use double to make sure it can represent all values a float64 can.

rockon209

This post is deleted!

VRonin

@rockon209 said in How to convert float64 to QString:

@VRonin
I want to dsiplay it in QTextedit, dont want to set the value tof textedit to QString

That's not what I'm doing there

you can even combine.textEdit->setText(textEdit->locale().toString(floatValue,'f'));