I’m trying to do something like: x = 2 y = 3 sa = StaticArray(Int32, x*y).new { |i| i * 2 } p! sa But, it complains with: syntax error in eval:3 Error: unexpected token: "x" (See: Carcin ) This looks kinda like Is there a way to combine special argument types that denote size through macros? .

You can’t. This would have been a compiler extension in C. However if sa is the last member of a class or struct (i.e. a VLA), then you could define it as a one-element StaticArray, manually create a larger buffer, then reinterpret that buffer through a pointer cast. (In fact this is what String do…

How to create a StaticArray with a variable size?

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straight-shoota September 5, 2022, 7:50am 12

You can’t resize the actual static array, but you can create a slice pointing to it and resize that accordingly.

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How to create a StaticArray with a variable size?

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