How to allocate custom type pointer?

php editor Yuzai introduces you how to allocate custom type pointers. In programming, pointers are a powerful tool for dynamically allocating and manipulating data in memory. If we need to use a custom type of pointer, we can allocate memory by using the malloc function. First, we need to determine the size of the custom type, and then use the malloc function to allocate sufficient memory space. Next, we cast the allocated memory space to a custom type pointer so we can operate on it. Remember to use the free function to release the memory after using the pointer to avoid memory leaks. Through this method, we can flexibly use custom type pointers to achieve more efficient programming.

Question content

I have:

type MyType string

type Source struct {
  Value *string
}

type Target struct {
  Value *MyType
}

These are generated types created by the code generator based on a JSON schema.

How to assign Source.Value to Target.Value?

Is this correct:

var target Target
var source Source

target.Value = new(MyType)
*target.Value = MyType(*source.Value)

Or is there a better way?

Solution

Yes.

(But maybe I'm missing the point of your question, since trying this would take an order of magnitude less time than asking it here.)

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