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os: rearrange OpenFile Flags doc

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Updates #21322

Change-Id: Ib03ee9dbe1b44c2fecd51f2f2c23a88482158e7e
Reviewed-on: https://go-review.googlesource.com/75250
Reviewed-by: Rob Pike <r@golang.org>
This commit is contained in:
Ian Lance Taylor 2017-11-01 13:38:05 -07:00
parent a8def0bbbc
commit 86b7721ce3
1 changed files with 3 additions and 2 deletions
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5
src/os/file.go
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@ -60,12 +60,13 @@ var (
)
// Flags to OpenFile wrapping those of the underlying system. Not all
// flags may be implemented on a given system. Each call to OpenFile
// should specify exactly one of O_RDONLY, O_WRONLY, or O_RDWR.
// flags may be implemented on a given system.
const (
// Exactly one of O_RDONLY, O_WRONLY, or O_RDWR must be specified.
O_RDONLY int = syscall.O_RDONLY // open the file read-only.
O_WRONLY int = syscall.O_WRONLY // open the file write-only.
O_RDWR int = syscall.O_RDWR // open the file read-write.
// The remaining values may be or'ed in to control behavior.
O_APPEND int = syscall.O_APPEND // append data to the file when writing.
O_CREATE int = syscall.O_CREAT // create a new file if none exists.
O_EXCL int = syscall.O_EXCL // used with O_CREATE, file must not exist.