logical vector as a matrix

I have a vector like this:
h <- c(4, 6, NA, 12) 
and I create the secound logical vector like this:
g <- c(TRUE, TRUE, FALSE, TRUE) 

And my problem is that I would like to get  a new "m" vector as a rasult "h"
and "m" but with missed "NA" value, for example:

m = (4,6,12)
Do you have any idea?

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