Overview of Assignment Operators¶

The := operator replaces the value of an existing variable or member:

VAR score I32 := 10;
score := 25;

Equality uses ==, so an assignment is visually distinct from a comparison:

IF (score == 25)
{
  score := 30;
}

Declaration initialization¶

The same token appears in a declaration:

VAR copy I32 := score;

Here it initializes a new object through a constructor. Later uses such as copy := score; assign an already-live object.

Compound assignment¶

Compound forms combine an operation with assignment:

score += 5;
score -= 2;
score *= 3;
score /= 2;
score %= 7;

Integer and BYTE values also have compound bitwise shifts, rotates, and logical bit operations.

User-defined types¶

Structures receive generated memberwise assignment when their members support it. A type can declare .OPERATOR:= when it needs a custom assignment contract.

Reference¶

Assignment changes a live object; it does not destroy and reconstruct it. For operator dispatch, generated assignment, compound spellings, and lifetime rules, see the Assignment Operators Reference.