e81582a97d
This optimization causes data races since we're changing the value field
without using atomics. E.g., a caller who has multiple goroutines
calling `Set("1")` and `Set("")` will race on the access to `s.v` since
one goroutine is trying to read it while the other sets it, neither
using atomic operations.
This reverts commit 16b44f14f0.
atomic 
Simple wrappers for primitive types to enforce atomic access.
Installation
go get -u go.uber.org/atomic
Usage
The standard library's sync/atomic is powerful, but it's easy to forget which
variables must be accessed atomically. go.uber.org/atomic preserves all the
functionality of the standard library, but wraps the primitive types to
provide a safer, more convenient API.
var atom atomic.Uint32
atom.Store(42)
atom.Sub(2)
atom.CAS(40, 11)
See the documentation for a complete API specification.
Development Status
Stable.
Released under the [MIT License](LICENSE.txt).