From 9f4ca350ee81a874b0c838c2e82076efde6db8b2 Mon Sep 17 00:00:00 2001
From: Jan Tuomi <jans.tuomi@gmail.com>
Date: Sun, 4 Dec 2022 22:42:21 +0200
Subject: Add impure concept

---
 examples/impure-concept.lisp | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 examples/impure-concept.lisp

diff --git a/examples/impure-concept.lisp b/examples/impure-concept.lisp
new file mode 100644
index 0000000..e612339
--- /dev/null
+++ b/examples/impure-concept.lisp
@@ -0,0 +1,12 @@
+; What color is your function?
+; Impure functions are functions that can call both pure and impure functions.
+; Pure functions can only call pure functions.
+; Impure function names end in an exclamation mark (!) by convention.
+; The top-level context is impure but has special rules
+;   related to (import!) and (let!).
+
+; pure function
+(let! f (\[x] x))
+
+; impure function
+(let! g (\![x] (print! x)))
-- 
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