[swift-users] edit array

[J.E. Schotsman via swift-users]

Simple question: why can’t I edit a variable array with a functional method?

For example:

struct TestStruct
        {
        var number = 0
        }

var array = [TestStruct](repeatElement(TestStruct(), count: 2))
array.forEach { $0.number += 1 }

Jan E.
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