# Checks if the mask is a perfect hashing function for
# these identifiers
fun phandp(ids: Array[Int], mask: Int): Bool
do
for i in ids do
var hv = i & mask
if tempht[hv] == mask then
return false
else
tempht[hv] = mask
end
end
return true
end
lib/perfect_hashing/perfect_hashing.nit:83,2--97,4