Closed
Description
What version of Go are you using (go version
)?
$ go version go version go1.16.3 windows/amd64
Does this issue reproduce with the latest release?
What operating system and processor architecture are you using (go env
)?
go env
Output
$ go env set GO111MODULE= set GOARCH=amd64 set GOBIN= set GOCACHE=C:\Users\storyicon\AppData\Local\go-build set GOENV=C:\Users\storyicon\AppData\Roaming\go\env set GOEXE=.exe set GOFLAGS= set GOHOSTARCH=amd64 set GOHOSTOS=windows set GOINSECURE= set GOMODCACHE=D:\Go\pkg\mod set GONOPROXY= set GONOSUMDB= set GOOS=windows set GOPATH=D:\Go set GOPRIVATE= set GOROOT=D:\Program Files\golang set GOSUMDB=off set GOTMPDIR= set GOTOOLDIR=D:\Program Files\golang\pkg\tool\windows_amd64 set GOVCS= set GOVERSION=go1.16.3 set GCCGO=gccgo set AR=ar set CC=gcc set CXX=g++ set CGO_ENABLED=1 set CGO_CFLAGS=-g -O2 set CGO_CPPFLAGS= set CGO_CXXFLAGS=-g -O2 set CGO_FFLAGS=-g -O2 set CGO_LDFLAGS=-g -O2 set PKG_CONFIG=pkg-config set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=C:\Users\STORYI~1\AppData\Local\Temp\go-build2449719716=/tmp/go-build -gno-record-gcc-switches
What did you do?
package main
import (
"fmt"
"time"
)
func main(){
i := 0
go func() {
for {
i++
}
}()
ticker := time.NewTicker(time.Second)
defer ticker.Stop()
for {
select {
case <-ticker.C:
fmt.Printf("i=%d \r\n", i)
}
}
}
What did you expect to see?
i
should be increasing
What did you see instead?
i
is always equal to 0
This seems like a very simple problem, but it doesn't meet intuitive expectations.