Initializing C # Structures

Question

Why is it necessary to initialize all fields in meaningful C # types, if there is a constructor?

For example, the following code will not compile

struct AAA { public int A; public string C; public AAA(int a) { A = a; } }

The AAA.C field must be fully defined before returning control to the calling method.

But if we remove the constructor, then everything compiles

 struct AAA { public int A; public string C; }

A related question: Should the base constructor be called? - Grundy

VladD VladD 183k sixteen 227 433 · Accepted Answer · 2017-01-24T20:16:24

The fact is that for structures, as opposed to classes, there is no initialization of fields by default (for the sake of efficiency). If you do not define a constructor, then you have a default constructor that initializes all fields to zero (the default appropriate type). If you define your constructor, it is enough to call the default constructor:

 public AAA(int a) : this() { A = a; }

Without this, the C field would not be initialized, and the value would not be defined. Such situations C #, unlike C ++, does not allow.

I think about the structure of a straight recently was still

Initializing C # Structures

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