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Ruby-FFIとFiddleによる構造体のclone時の挙動の違い
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| require 'ffi' | |
| class S < FFI::Struct | |
| layout :i, :int | |
| end | |
| a = S.new | |
| a[:i] = 10 | |
| b = a.clone | |
| b[:i] = 20 | |
| p a[:i] # 10 | |
| p b[:i] # 20 |
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| require 'fiddle/import' | |
| S = Fiddle::Importer.struct(["int i"]) | |
| a = S.malloc | |
| a.i = 10 | |
| b = a.clone | |
| b.i = 20 | |
| p a.i # 20 | |
| p b.i # 20 |
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