Golang cannot take the address of
今天在使用kubernetes/apimachinery下/pkg/api/resource中的Quantity接收k8s资源信息的时候,报出如下错误:..\server\handlers\adapter.go:70:cannot call pointer method on clusterQuota.Hard[admin.ResourceRequestsCPU]..\server\ha
·
今天在使用kubernetes/apimachinery下/pkg/api/resource中的Quantity接收k8s资源信息的时候,报出如下错误:
..\server\handlers\adapter.go:70:
cannot call pointer method on clusterQuota.Hard[admin.ResourceRequestsCPU]
..\server\handlers\adapter.go:70:
cannot take the address of clusterQuota.Hard[admin.ResourceRequestsCPU]
具体出错代码如下:
test:= clusterQuota.Hard[admin.ResourceRequestsCPU].Value()
fmt.Println(test)
Quantity结构及Value()方法如下:
type Quantity struct {
// i is the quantity in int64 scaled form, if d.Dec == nil
i int64Amount
// d is the quantity in inf.Dec form if d.Dec != nil
d infDecAmount
// s is the generated value of this quantity to avoid recalculation
s string
// Change Format at will. See the comment for Canonicalize for
// more details.
Format
}
// Value returns the value of q; any fractional part will be lost.
func (q *Quantity) Value() int64 {
return q.ScaledValue(0)
}
既然调用方法指定的是指针,那么这么调用是否可以?
ii := (&clusterQuota.Hard[tenant_admin.ResourceRequestsCPU]).Value()
fmt.Println(ii)
编译发现还是不行,那应该怎么处理呢?
其实会发现,取出变量的地址,需要两步:
hardRequestCpu := clusterQuota.Hard[tenant_admin.ResourceRequestsCPU]
fmt.Println((&hardRequestCpu).Value())
本文参考:
https://stackoverflow.com/questions/10535743/address-of-a-temporary-in-go
个人微信公众号:
作者:jiankunking 出处:http://blog.csdn.net/jiankunking
更多推荐
已为社区贡献4条内容
所有评论(0)