fix for 1d offset axes

Update indexing.jl

Author: N5N3

src/device/indexing.jl

@@ -65,7 +65,7 @@ macro linearidx(A, grididx=1, ctxsym=:ctx)
         x = $(esc(A))
         i = linear_index($(esc(ctxsym)), $(esc(grididx)))
         i > length(x) && return
-        i
+        i + firstindex(x) - 1
     end
 end
 
@@ -77,7 +77,8 @@ Like [`@linearidx`](@ref), but returns a N-dimensional `CartesianIndex`.
 macro cartesianidx(A, grididx=1, ctxsym=:ctx)
     quote
         x = $(esc(A))
-        i = @linearidx(x, $(esc(grididx)), $(esc(ctxsym)))
-        @inbounds CartesianIndices(x)[i]
+        cx = CartesianIndices(x)
+        i = @linearidx(cx, $(esc(grididx)), $(esc(ctxsym)))
+        @inbounds cx[i]
     end
 end