atomic.StoreInt64() 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 StoreInt64() 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 StoreInt64(addr *int64, val int64)

Here, addr indicates address.

Note: (*int64) is the pointer to a int64 value. However, int64 contains the set of all signed 64-bit integers from -9223372036854775808 to 9223372036854775807.

Return value: It stores the val into *addr and then can be returned when required.

Example 1:

// Program to illustrate the usage of
// StoreInt64 function in Golang
  
// Including main package
package main
  
// importing fmt and sync/atomic
import (
    "fmt"
    "sync/atomic"
)
  
// Main function
func main() {
  
    // Defining variables for 
    // the address to store the val
    var (
        x int64
        y int64
    )
  
    // Using StoreInt64 method 
    // with its parameters
    atomic.StoreInt64(&x, 6777676777)
    atomic.StoreInt64(&y, 98877)
  
    // Displays the value stored in addr
    fmt.Println(atomic.LoadInt64(&x))
    fmt.Println(atomic.LoadInt64(&y))
}

Output:

6777676777
98877

Here, first, the int64 value is stored in the addresses defined then they are returned using the LoadInt64() method above.

Example 2:

// Program to illustrate the usage of
// StoreInt64 function in Golang
  
// Including main package
package main
  
// importing fmt and sync/atomic
import (
    "fmt"
    "sync/atomic"
)
  
// Main function
func main() {
  
    // Defining variables for the 
    // address to store the val
    var (
        x int64
    )
  
    // Using StoreInt64 method
    // with its parameters
    atomic.StoreInt64(&x, 3654567899788)
  
    // Loading the stored val
    z := atomic.LoadInt64(&x)
  
    // Prints true if values
    // are same else false
    fmt.Println(z == x)
  
    // Prints true if addresses
    // are same else false
    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.

My Personal Notes

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atomic.StoreInt64() Function in Golang With Examples