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djberg96/byte_test.rb

Created May 19, 2012 22:40
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CharArray vs String in FFI
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byte_test.rb
require 'ffi'
class MyStruct < FFI::Struct
layout(:path, [:char, 2]) # wchar
end
s = "hello".encode("UTF-16LE")
m = MyStruct.new
m[:path].to_ptr.put_bytes(0, s, s.bytesize)
p m[:path].to_s # => "" (empty)
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