how to set double precision

My double is 00.0 format. when I set it to QLCDNumber .display(double)
it automatically removes the precisions and displays 0

02.0 -> as 2.0
0.0 -> 0
20.0 -> 20
and so on. How can I force it keep it's format?

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Added after 9 minutes:

Quote:

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Originally Posted by saman_artorious

My double is 00.0 format. when I set it to QLCDNumber .display(double)
it automatically removes the precisions and displays 0

02.0 -> as 2.0
0.0 -> 0
20.0 -> 20
and so on. How can I force it keep it's format?

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I did this:
QString str = QString::number(f, 'f', 1);

now, how can I padleft the float? so that when I enter 02.0 it shows it and not 2.0? does qt support it?

Read about QString::rightJustified. And for the future: read the documentation, it does not hurt.

Quote:

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Originally Posted by Lesiok

Read about QString::rightJustified. And for the future: read the documentation, it does not hurt.

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result is not as expected. had to do this to get the expected result:

Code:

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QString str = QString::number(f, 'f', 1);
    if(str.length() == 3)
    str.insert(0, '0');

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Code:

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QString(%1).arg(f, 5, 'f', 1, '0');

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or similar. RightJustified() would also work.

Quote:

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it automatically removes the precisions and displays 0
02.0 -> as 2.0

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A leading zero has nothing to do with precision.