Hi All,
I'm trying to create a sequence of a subrange type as shown below:
type
Nucleotide = enum
T, A, G, C, U
DNANuc = range[T..C]
RNANuc = range[A..U]
echo high(DNANuc)
var dnaseq1: seq[DNANuc] = @[]
dnaseq1.add(A)
dnaseq1.add(T)
dnaseq1.add(T)
dnaseq1.add(G)
dnaseq1.add(C)
echo dnaseq1
# the following line gives a type mismatch error
var dnaseq2: seq[DNANuc] = @[A, T, T, G, C]
echo dnaseq2
Run
As the example code indicates, creating an empty sequence and then filling with
items from the enum via `add()` works, but initializing the sequence in one
fell swoop doesn't work. From the error message obviously `@[A, T, T, G]` is
being intepreted as `seq[Nucleotide]` instead of `seq[DNANuc]` but how do I
force it to be interepreted as such?
