converting QString to FLOAT behaves unexpectedly

Hi,

When I do this:

Code:

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QString forty= "40.1";
float frty = forty.toFloat();
printf("%f\n", frty);

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I get:
40.099998

Why don't I get 40.1? I'm very thankful for any ideas.
Thanks!

There's nothing wrong with QString::toFloat(), it's result of casting your value to double inside printf. Some more info here.
Try this :)

Code:

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qDebug() << frty;

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