Initial commit: Go 1.23 release state

test/append1.go

@@ -0,0 +1,22 @@
+// errorcheck
+
+// Copyright 2017 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.
+
+// Verify that append arguments requirements are enforced by the
+// compiler.
+
+package main
+
+func main() {
+
+	s := make([]int, 8)
+
+	_ = append()           // ERROR "missing arguments to append|not enough arguments for append"
+	_ = append(s...)       // ERROR "cannot use ... on first argument|not enough arguments in call to append"
+	_ = append(s, 2, s...) // ERROR "too many arguments to append|too many arguments in call to append"
+
+	_ = append(s, make([]int, 0))     // ERROR "cannot use make\(\[\]int, 0\) \(value of type \[\]int\) as int value in argument to append"
+	_ = append(s, make([]int, -1)...) // ERROR "negative len argument in make|index -1.* must not be negative"
+}