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• 00:11, 21 November 2025 PC talk contribs created page Inside Rust’s Memory Layout: The Secrets Behind repr(C) and repr(transparent) (Created page with "500px When I first started working with Rust FFI, I made a rookie mistake: I assumed my struct would look in memory the same way it looked in code.
It didn’t. My C library read garbage bytes, segfaulted, and made me question all my life choices. That’s when I discovered Rust’s representation attributes — repr(C), repr(transparent), and the wild, undocumented world of how the compiler decides where and how yo...")