struct
vs
class
-
class-
reference type
-
allocated on heap
-
managed by GC
-
-
struct-
value type
-
usually stack allocated
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copied by value
-
struct Vec2 {
public float x;
public float y;
}
readonly struct
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Prevents mutation after creation.
-
Benefits:
-
safer value semantics
-
avoids defensive copies
-
readonly struct Vec2 {
public readonly float x;
public readonly float y;
}