fixes #21278; deques.shrink off by one bug (#21284)

fixes #21278; deques.shrink off ny one bug
2023-01-20 18:43:45 +08:00 · 2023-01-20 18:43:45 +08:00 · b82b5d44af
commit b82b5d44af
parent 4c74b9b54c
2 changed files with 7 additions and 1 deletions
--- a/tests/stdlib/tdeques.nim
+++ b/tests/stdlib/tdeques.nim
@ -183,6 +183,12 @@ proc main() =
    clear(a)
    doAssert len(a) == 0

+  block: # bug #21278
+    var a = [10, 20, 30, 40].toDeque
+
+    a.shrink(fromFirst = 0, fromLast = 1)
+    doAssert $a == "[10, 20, 30]"
+

 static: main()
 main()