Golang program to convert a 32-bit integer number into a 64-bit integer number

Here, we are going to learn how to convert a 32-bit integer number into a 64-bit integer number in Golang (Go Language)?
Submitted by Nidhi, on March 14, 2021 [Last updated : March 03, 2023]

Converting a 32-bit integer number into a 64-bit integer number in Golang

Problem Solution:

In this program, we will convert a 32-bit integer number into a 64-bit integer number using the int64() function and print the result on the console screen.

Program/Source Code:

The source code to convert a 32-bit integer number into a 64-bit integer number is given below. The given program is compiled and executed successfully.

Golang code to convert a 32-bit integer number into a 64-bit integer number

// Golang program to convert a 32-bit integer number
// into a 64-Bit integer number

package main

import "fmt"

func main() {
	var intNum32 int32 = 123
	var intNum64 int64 = 0

	intNum64 = int64(intNum32)
	fmt.Println("64-Bit integer number: ", intNum64)
}

Output:

64-Bit integer number:  123

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt package that includes the files of package fmt then we can use a function related to the fmt package.

In the main() function, we two variables intNum32, intNum64 that are initialized with 123, 0 respectively. After that, we converted the intNum32 variable into a 64-bit integer number and assigned it to the intNum64 variable using the int64() function, and print the result on the console screen.

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