Inside the C Standard Library
He really should have noted the misdefinition of the truncating versions in string.h. Eg. strncpy doesn't leave enough room for the final \0, so the string may be the unterminated. A serious POSIX error.This worse than the wchar_t iswalpha trouble with older UCS-2 implementations (Windows, AIX).Or the implementation trouble with memset, which either can be optimized away without a compiler barrier, or on modern hyperthreaded microarchitectures which violate load-store ordering and thus need a full memory barrier (mfence). no single libc does it properly, not even crypto libs, such as libsodium.