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A comment on Announcing Rust 1.20. Parent comment

Re:Announcing Rust 1.20 by sanxiyn on Friday September 01, 2017 @04:00AM (#15146893)
Yes, but that doesn't help when T is not a reference type.
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Re:Announcing Rust 1.20 by Animats on Friday September 01, 2017 @06:13PM (#15152785)
If it's not a reference type, then the Option enum value is probably small relative to the rest of the data in the type.
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Re:Announcing Rust 1.20 by __s on Saturday September 02, 2017 @07:29PM (#15158815)
Option<i32> is 8 bytes
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