Fix getindex (#121)

* fix a bug in local_solution_spec

* fix getindex

Author: nzy1997

src/bitvector.jl

@@ -47,7 +47,7 @@ Base.eltype(::Type{<:StaticElementVector}) = UInt64
     @inbounds if ii1 == ii2
         (x.data[ii1+1] >> (i1-ii1*64-1)) & (1<<S - 1)
     else  # cross two integers
-        (x.data[ii1+1] >> (i1-ii*64-S+1)) | (x.data[ii2+1] & (1<<(i2-ii1*64) - 1))
+        (x.data[ii1+1] >> (i1-ii1*64-S+1)) | (x.data[ii2+1] & (1<<(i2-ii2*64) - 1))
     end
 end
 function StaticElementVector(nflavor::Int, x::AbstractVector)

test/bitvector.jl

@@ -28,3 +28,9 @@ using ProblemReductions: statictrues, staticfalses, StaticBitVector, onehotv
     @test ProblemReductions.hamming_distance(bv"110_111", bv"100_111") == 1
 end
 
+@testset "getindex StaticElementVector" begin
+    sev = StaticElementVector(20, collect(0:19))
+    @test sev[1] == 0
+    @test sev[10] == 9
+    @test sev[20] == 19
+end