How to declare and use pointers to struct in Golang 1.20
0In this video we are going to generate source code for the GoLang Program, How to declare and use pointers to struct using chatGPT.
After generating we will verify and run the generated code.
IMPORTANT NOTE on SOURCE CODE: only source code that are acceptable by the youtube description box will be displayed.
##############SOURCE CODE#########################
package main
import "fmt"
// Define a struct type for a person
type Person struct {
name string
age int
}
func main() {
// Create a new Person struct
person := Person{"John", 30}
// Create a pointer to the Person struct
personPtr := &person
// Access the fields of the struct using the pointer
fmt.Println("Name:", personPtr.name)
fmt.Println("Age:", personPtr.age)
// Modify the value of a field using the pointer
personPtr.age = 31
fmt.Println("Modified Age:", personPtr.age)
}
##############END OF SOURCE CODE#########################
Below is the explanation for the program:
In this program, we define a Person struct type with two fields: name and age. We then create a new Person struct and assign it to a variable named person.
Next, we create a pointer to the person variable using the & operator, which returns the memory address of the person variable. We assign this pointer to a new variable named personPtr.
We can then access the fields of the Person struct using the personPtr pointer and the . (dot) operator. For example, we can access the name field using personPtr.name and the age field using personPtr.age.
We can also modify the value of a field using the pointer by assigning a new value to it. In this program, we modify the value of the age field using personPtr.age = 31.
#go #goprogramming #golang #golangtutorial #golanguage