S_DUPLAST
if (LF_ISSET(S_DUPLAST))
if (LF_ISSET(S_DUPLAST))
#define S_INSERT (S_WRITE | S_DUPLAST | S_PAST_EOF | S_STACK)
#define S_KEYLAST (S_WRITE | S_DUPLAST | S_PAST_EOF | S_STACK)
#define S_WRPAIR (S_WRITE | S_DUPLAST | S_PAST_EOF | S_PARENT)