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A Brief Look at the Mathematics of Structure Packing

sayansivakumaran.com · published 1 August 2025

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https://godbolt.org/

godbolt.org

http://www.catb.org/esr/structure-packing

catb.org

https://clang.llvm.org/docs/analyzer/checkers.html

clang.llvm.org

https://github.com/llvm/llvm-project/blob/478b4b012f6c70f799ffeb3523b5a160aed8726b/clang/lib/StaticAnalyzer/Checkers/PaddingChecker.cpp

github.com

https://dl.acm.org/doi/10.1145/1508284.1508275

dl.acm.org

https://scholar.google.com/scholar?hl=en&as_sdt=0%2C50&q=%22structure+splitting%22+AND+%22llvm%22&btnG=

scholar.google.com

https://scholar.google.com/scholar?start=0&q=%22field+reordering%22&hl=en&as_sdt=0,50

scholar.google.com

Data alignment for speed: myth or reality? Read at the source ↗

lemire.me

https://orchistro.tistory.com/206

orchistro.tistory.com

https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3096.pdf

open-std.org

https://stackoverflow.com/questions/46009715/is-the-alignof-of-a-struct-always-the-maximum-alignof-of-its-constituents

stackoverflow.com

https://stackoverflow.com/questions/10309089/why-does-size-of-the-struct-need-to-be-a-multiple-of-the-largest-alignment-of-an

stackoverflow.com

https://www.quora.com/In-C-why-must-the-size-of-a-struct-be-divisible-by-the-size-of-its-largest-member

quora.com

https://clang.llvm.org/docs/LanguageExtensions.html

clang.llvm.org

https://github.com/llvm/llvm-project/blob/main/clang/lib/StaticAnalyzer/Checkers/PaddingChecker.cpp

github.com

https://github.com/openjdk/jdk/blob/master/src/hotspot/share/classfile/fieldLayoutBuilder.cpp

github.com

https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8237767

bugs.java.com

https://github.com/rust-lang/rust/blob/master/compiler/rustc_abi/src/layout.rs

github.com

https://camlorn.net/posts/April%202017/rust-struct-field-reordering/

camlorn.net