atomic.StoreInt32() 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 StoreInt32() 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 StoreInt32(addr *int32, val int32)
Here, addr indicates address.
Note: (*int32) is the pointer to a int32 value. However, int32 contains the set of all signed 32-bit integers from -2147483648 to 2147483647.
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 int32
y int32
)
atomic.StoreInt32(&x, 65)
atomic.StoreInt32(&y, 3455)
fmt.Println(atomic.LoadInt32(&x))
fmt.Println(atomic.LoadInt32(&y))
}
|
Output:
65
3455
Here, first, the int32 value is stored in the addresses defined then they are returned using the LoadInt32() method above.
Example 2:
package main
import (
"fmt"
"sync/atomic"
)
func main() {
var (
x int32
)
atomic.StoreInt32(&x, 8943)
z := atomic.LoadInt32(&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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