atomic.StoreInt32() Function in Golang With Examples

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:

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// Program to illustrate the usage of
// StoreInt32 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 int32
        y int32
    )
  
    // Using StoreInt32 method 
    // with its parameters
    atomic.StoreInt32(&x, 65)
    atomic.StoreInt32(&y, 3455)
  
    // Displays the value stored in addr
    fmt.Println(atomic.LoadInt32(&x))
    fmt.Println(atomic.LoadInt32(&y))
}

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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:

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// Program to illustrate the usage of
// StoreInt32 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 int32
    )
  
    // Using StoreInt32 method 
    // with its parameters
    atomic.StoreInt32(&x, 8943)
  
    // Loading the stored val
    z := atomic.LoadInt32(&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)
}

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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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