atomic.StoreUintptr() Function in Golang With Examples
Last Updated :
01 Apr, 2020
In Go language, atomic packages supply lower-level atomic memory that is helpful is implementing synchronization algorithms. The StoreUintptr() function in Go language is used to atomically store val into *addr. This function is defined under the atomic package. Here, you need to import “sync/atomic” package in order to use these functions.
Syntax:
func StoreUintptr(addr *uintptr, val uintptr)
Here, addr indicates address.
Note: (*uintptr) is the pointer to a uintptr value. And uintptr is an integer type that is large too large that it can contain hold the bit pattern of any pointer.
Return Value: It stores the val into *addr and then can be returned when required.
Example 1:
package main
import (
"fmt"
"sync/atomic"
)
func main() {
var (
x uintptr
y uintptr
)
atomic.StoreUintptr(&x, 444443)
atomic.StoreUintptr(&y, 223)
fmt.Println(atomic.LoadUintptr(&x))
fmt.Println(atomic.LoadUintptr(&y))
}
|
Output:
444443
223
Here, first, the uintptr value is stored in the addresses defined then they are returned using the LoadUintptr() method above.
Example 2:
package main
import (
"fmt"
"sync/atomic"
)
func main() {
var (
x uintptr
)
atomic.StoreUintptr(&x, 5255151111)
z := atomic.LoadUintptr(&x)
fmt.Println(z == x)
fmt.Println(&z == &x)
}
|
Output:
true
false
Here, the value stored and loaded are the same so true is returned but their addresses are not the same so false is returned in that case.
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