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fix ch1.5 demo compile error

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barryz 2018-01-07 10:58:16 +08:00
parent 85757d9dec
commit 6724f16bc1
1 changed files with 6 additions and 2 deletions
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8
ch1-basic/ch1-05-mem.md
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@ -61,17 +61,21 @@ import (
"sync/atomic" "sync/atomic"
) )
var total int64 var total uint64
func worker(wg *sync.WaitGroup) { func worker(wg *sync.WaitGroup) {
defer wg.Done() defer wg.Done()
for i := 0; i <= 100; i++ { var i uint64
for i = 0; i <= 100; i++ {
atomic.AddUint64(&total, i) atomic.AddUint64(&total, i)
} }
} }
func main() { func main() {
var wg sync.WaitGroup
wg.Add(2)
go worker(&wg) go worker(&wg)
go worker(&wg) go worker(&wg)
wg.Wait() wg.Wait()