1. Finding the size of a struct member (lifted from the Linux kernel) #define FI... | Hacker News

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		donquichotte on Nov 22, 2020 \| parent \| context \| favorite \| on: What is your favorite C programming trick? (2009) 1. Finding the size of a struct member (lifted from the Linux kernel) #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) 2. Not strictly C: using `pahole` to analyze how structs are laid out in memory https://linux.die.net/man/1/pahole

SV_BubbleTime on Nov 29, 2020 [–]

Last week I would have said “ok, but I’ll never need to do that”. This week I had to do exactly that (find the size of a struct member).

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