Foam::pow() function not working with integer fraction
Hello everyone,
the following bug is present in both OF1.5 and OF1.6: You would expect the following functions to return the same value Info << pow(turbulence>epsilon(), (1./2.) ); Info << pow(turbulence>epsilon(), (1/2) ); Both compile without error or warning. However, the second line only returns the value 1 in all fields. The first line returns the square root of the epsilon field just as expected. NB: This bug does not occur with plain integers, so Info << pow(turbulence>epsilon(), 2. ); Info << pow(turbulence>epsilon(), 2 ); will give you the same (correct) result. Regards, Dominik Christ P.S.: As this is such a fundamental function, I wonder why it passed unnoticed for so long ... 
The compiler will evaluate 1/2 as integer division. Hence it will be doing a pow(.., 0) which returns 1 as it should. Apart from this you could also use sqrt or sqr.

Oh, of course, that's the reason.
Thanks Mattijs for pointing that out to me! 
Hello
I am also struggling with same problem, but i want to do the power (1/3). Code:
scalar rad = Foam::pow(Vol,1.0/3.0); My main problem is that when i using Code:
scalar rad = Foam::pow(Vol,1.0/3.0); And, when i used Code:
scalar rad = Foam::pow(Vol,1/3); 
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