diff options
Diffstat (limited to 'lib/iterator/index.go')
| -rw-r--r-- | lib/iterator/index.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/iterator/index.go b/lib/iterator/index.go index dd660052..5dad4fe4 100644 --- a/lib/iterator/index.go +++ b/lib/iterator/index.go @@ -21,6 +21,9 @@ func FixBounds(i, lower, upper int) int { // WrapBounds will wrap the index i around its upper- or lower-bound if // out-of-bound func WrapBounds(i, lower, upper int) int { + if upper <= 0 { + return lower + } switch { case i > upper: i = lower + (i-upper-1)%upper |