Mastering Go - Second Edition

Pointers to structures

In Chapter 3, Working with Basic Go Data Types, we talked about pointers. In this section, we will look at an example that is related to pointers to structures. The name of the program will be pointerStruct.go and will be presented in four parts.

The first part of the program contains the next Go code:

package main 
 
import ( 
    "fmt" 
) 
 
type myStructure struct { 
    Name    string 
    Surname string 
    Height  int32 
} 

The second code segment from pointerStruct.go follows:

func createStruct(n, s string, h int32) *myStructure { 
    if h > 300 { 
        h = 0 
    } 
    return &myStructure{n, s, h} 
} 

The approach used in createStruct() for creating a new structure variable has many advantages over initializing structure variables on your own, including the ...