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#if 0 #include <unistd.h> int ftruncate(int fildes, off_t length) { /* __POSIX_MIN(199309L); __POSIX_OPTION_OR(_MAPPED_FILES, _SHARED_MEMORY); __XOPEN_MIN(450); __SC(int, fildes, length); */ } /* XOPEN(400) POSIX(199309) */ #endif