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-rw-r--r--source/tanya/container/list.d1
1 files changed, 1 insertions, 0 deletions
diff --git a/source/tanya/container/list.d b/source/tanya/container/list.d
index fe62b5f..cb3115f 100644
--- a/source/tanya/container/list.d
+++ b/source/tanya/container/list.d
@@ -925,6 +925,7 @@ struct DRange(L)
invariant
{
assert(this.head !is null);
+ assert(this.tail !is null);
}
private this(ref EntryPointer head, ref EntryPointer tail) @trusted