ref: 37e65b331bdf98f409be1bd2fbb55aec158c7877
dir: /sys/src/libndb/ndbdedup.c/
#include <u.h> #include <libc.h> #include <bio.h> #include <ndb.h> /* * remove duplicates */ Ndbtuple* ndbdedup(Ndbtuple *t) { Ndbtuple *nt, *last, *tt; for(nt = t; nt != nil; nt = nt->entry){ last = nt; for(tt = nt->entry; tt != nil; tt = last->entry){ if(strcmp(nt->attr, tt->attr) != 0 || strcmp(nt->val, tt->val) != 0){ last = tt; continue; } if(last->line == tt) last->line = tt->line; last->entry = tt->entry; tt->entry = nil; ndbfree(tt); } } return t; }