lib: fix a bug with String::has_substring and related methods

[nit.git] / lib / standard / string.nit

diff --git a/lib/standard/string.nit b/lib/standard/string.nit
index 20d0c9e..46f8422 100644 (file)
--- a/lib/standard/string.nit
+++ b/lib/standard/string.nit
@@ -72,10 +72,10 @@ special AbstractArrayRead[Char]
                var myitems = _items
                var itsitems = str._items
                if myindex > length or itsindex > myindex  then return false
-               while itsindex > 0 do
+               while itsindex >= 0 do
                        if myitems[myindex] != itsitems[itsindex] then return false
-                       myindex -= myindex
-                       itsindex -= itsindex
+                       myindex -= 1
+                       itsindex -= 1
                end
                return true
        end