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atomic.StoreUint32() 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 StoreUint32() 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 StoreUint32(addr *uint32, val uint32)

Here, addr indicates address.

Note: (*uint32) is the pointer to a uint32 value. However, int32 contains the set of all unsigned 32-bit integers from 0 to 4294967295.

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



Example 1:




// Program to illustrate the usage of
// StoreUint32 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 uint32
        y uint32
    )
  
    // Using StoreUint32 method
    // with its parameters
    atomic.StoreUint32(&x, 465559)
    atomic.StoreUint32(&y, 123)
  
    // Displays the value stored in addr
    fmt.Println(atomic.LoadUint32(&x))
    fmt.Println(atomic.LoadUint32(&y))
}

Output:

465559
123

Here, first, the uint32 value is stored in the addresses defined then they are returned using the LoadUint32() method above.

Example 2:




// Program to illustrate the usage of
// StoreUint32 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 uint32
    )
  
    // Using StoreUint32 method 
    // with its parameters
    atomic.StoreUint32(&x, 67677)
  
    // Loading the stored val
    z := atomic.LoadUint32(&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 same so true is returned but their addresses are not same so false is returned in that case.




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