From 47ab3d4a42e9ab51c465c4322d2ec233f6324e6b Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 15:16:40 +0200
Subject: Adding upstream version 1.18.10.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 test/simassign.go | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 test/simassign.go

(limited to 'test/simassign.go')

diff --git a/test/simassign.go b/test/simassign.go
new file mode 100644
index 0000000..6ba5c78
--- /dev/null
+++ b/test/simassign.go
@@ -0,0 +1,79 @@
+// run
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Test simultaneous assignment.
+
+package main
+
+var a, b, c, d, e, f, g, h, i int
+
+func printit() {
+	println(a, b, c, d, e, f, g, h, i)
+}
+
+func testit(permuteok bool) bool {
+	if a+b+c+d+e+f+g+h+i != 45 {
+		print("sum does not add to 45\n")
+		printit()
+		return false
+	}
+	return permuteok ||
+		a == 1 &&
+			b == 2 &&
+			c == 3 &&
+			d == 4 &&
+			e == 5 &&
+			f == 6 &&
+			g == 7 &&
+			h == 8 &&
+			i == 9
+}
+
+func swap(x, y int) (u, v int) {
+	return y, x
+}
+
+func main() {
+	a = 1
+	b = 2
+	c = 3
+	d = 4
+	e = 5
+	f = 6
+	g = 7
+	h = 8
+	i = 9
+
+	if !testit(false) {
+		panic("init val\n")
+	}
+
+	for z := 0; z < 100; z++ {
+		a, b, c, d, e, f, g, h, i = b, c, d, a, i, e, f, g, h
+
+		if !testit(z%20 != 19) {
+			print("on ", z, "th iteration\n")
+			printit()
+			panic("fail")
+		}
+	}
+
+	if !testit(false) {
+		print("final val\n")
+		printit()
+		panic("fail")
+	}
+
+	a, b = swap(1, 2)
+	if a != 2 || b != 1 {
+		panic("bad swap")
+	}
+
+	a, b = swap(swap(a, b))
+	if a != 2 || b != 1 {
+		panic("bad swap")
+	}
+}
-- 
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