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| author | Cuong Manh Le <cuong.manhle.vn@gmail.com> | 2023-01-21 02:36:45 +0700 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2023-02-01 15:21:00 +0000 |
| commit | 4fe46cee4ea4eb15e38675ff32222f07e6b15404 (patch) | |
| tree | b328250e7cafaf28374474e3138f23f022a0c599 /src/builtin | |
| parent | 56a14ad4bc19d5ee9d4257f370a570377e81e544 (diff) | |
| download | go-git-4fe46cee4ea4eb15e38675ff32222f07e6b15404.tar.gz | |
builtin: add documentation for clear
Updates #56351
Change-Id: I7b1dd29e60f71d804a6d9cba3377e28c3a5b964e
Reviewed-on: https://go-review.googlesource.com/c/go/+/462935
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Keith Randall <khr@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Diffstat (limited to 'src/builtin')
| -rw-r--r-- | src/builtin/builtin.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/builtin/builtin.go b/src/builtin/builtin.go index d3637584fe..bcfb7ce956 100644 --- a/src/builtin/builtin.go +++ b/src/builtin/builtin.go @@ -227,6 +227,15 @@ func real(c ComplexType) FloatType // the type of c. func imag(c ComplexType) FloatType +// The clear built-in function clears maps and slices. +// For maps, clear deletes all entries, resulting in an empty map. +// For slices, clear sets all elements up to the length of the slice +// to the zero value of the respective element type. If the argument +// type is a type parameter, the type parameter's type set must +// contain only map or slice types, and clear performs the operation +// implied by the type argument. +func clear[T ~[]Type | ~map[Type]Type1](t T) + // The close built-in function closes a channel, which must be either // bidirectional or send-only. It should be executed only by the sender, // never the receiver, and has the effect of shutting down the channel after |