[3.12] gh-125118: don't copy arbitrary values to _Bool in the struct module (GH-125169) #125265
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…truct module (pythonGH-125169) memcopy'ing arbitrary values to _Bool variable triggers undefined behaviour. Avoid this. We assume that `false` is represented by all zero bytes. Credits to Alex Gaynor. (cherry picked from commit 87d7315) Co-authored-by: Sergey B Kirpichev <[email protected]> Co-authored-by: Sam Gross <[email protected]> Co-authored-by: Victor Stinner <[email protected]> Co-authored-by: Petr Viktorin <[email protected]>
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memcopy'ing arbitrary values to _Bool variable triggers undefined behaviour. Avoid this.
We assume that
falseis represented by all zero bytes.Credits to Alex Gaynor.
(cherry picked from commit 87d7315)