| --- |
| title: UncalledBuiltin |
| layout: article |
| --- |
| <!-- Copyright 2023 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. --> |
| |
| <!-- Code generated by generrordocs.go; DO NOT EDIT. --> |
| |
| ``` |
| UncalledBuiltin occurs when a built-in function is used as a |
| function-valued expression, instead of being called. |
| |
| Per the spec: |
| "The built-in functions do not have standard Go types, so they can only |
| appear in call expressions; they cannot be used as function values." |
| |
| Example: |
| var _ = copy |
| ``` |
| |
