String ( QbyteArray ) to Double Value with 6 decimal digits

[persianpatient]

Hi ,

I have to convert a string to a double value , my string is inside a QByteArray :

QByteArray myStr = "50.123456";
double myDouble = myStr.toDouble();

QByteArray myStr = "50.123456";
double myDouble = myStr.toDouble();

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it will return 50.12346 , I need exact value , how to fix this problem ?

Best Regards,
Amir .