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| author | Julien Schmidt <go@julienschmidt.com> | 2019-09-30 00:07:34 +0000 |
|---|---|---|
| committer | Brad Fitzpatrick <bradfitz@golang.org> | 2019-09-30 00:45:38 +0000 |
| commit | 843fec1c7d75cac3f76620e79f1680d8f058c501 (patch) | |
| tree | 83ecf7eb09a5b63036d3c031d038bef5ec24a95a /src/database | |
| parent | 931365763a294950200096d071a35f799ffade2c (diff) | |
| download | go-843fec1c7d75cac3f76620e79f1680d8f058c501.tar.gz go-843fec1c7d75cac3f76620e79f1680d8f058c501.zip | |
database/sql: preallocate list slice in Drivers()
The required slice capacity is already known. Thus, preallocate a slice with the correct capacity before appending to it.
Change-Id: I45ac2c5f1701caeb3dda20451d371713ae7e7365
GitHub-Last-Rev: 2bf575be65e9a449322540270988eaf87cec4245
GitHub-Pull-Request: golang/go#34602
Reviewed-on: https://go-review.googlesource.com/c/go/+/197917
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'src/database')
| -rw-r--r-- | src/database/sql/sql.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/database/sql/sql.go b/src/database/sql/sql.go index 93001635be..0f5bbc01c9 100644 --- a/src/database/sql/sql.go +++ b/src/database/sql/sql.go @@ -64,7 +64,7 @@ func unregisterAllDrivers() { func Drivers() []string { driversMu.RLock() defer driversMu.RUnlock() - var list []string + list := make([]string, 0, len(drivers)) for name := range drivers { list = append(list, name) } |