diff --git a/generators/nim/glue.nim b/generators/nim/glue.nim
new file mode 100644
index 0000000..31a203b
--- /dev/null
+++ b/generators/nim/glue.nim
@@ -0,0 +1,15 @@
+proc preDec*[T: Ordinal | uint | uint64](x: var T; y = 1): T {.discardable.} =
+  dec x, y
+  result = x
+
+proc postDec*[T: Ordinal | uint | uint64](x: var T; y = 1): T {.discardable.} =
+  result = x
+  dec x, y
+
+proc postInc*[T: Ordinal | uint | uint64](x: var T; y = 1): T {.discardable.} =
+  result = x
+  inc x, y
+
+proc preInc*[T: Ordinal | uint | uint64](x: var T; y = 1): T {.discardable.} =
+  inc x, y
+  result = x