POSIX loosened its guarantee here too? https://pubs.opengroup.org/onlinepubs/009696899/functions/realloc.html https://pubs.opengroup.org/onlinepubs/009696899/f

POSIX loosened its guarantee here too? https://pubs.opengroup.org/onlinepubs/009696899/functions/realloc.html https://pubs.opengroup.org/onlinepubs/009696899/functions/re... https://pubs.opengroup.org/onlinepubs/9699919799/functions/realloc.html https://pubs.opengroup.org/onlinepubs/9699919799/functions/r...