ref: 9d60ece81651aedea9136615f40cbee27e1eda97
parent: ed41dd5b288d95dc11ff87e97bade9859bde6c07
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Sun Sep 16 11:27:17 EDT 2018
libndb: add missing ndbdedup.c
--- /dev/null
+++ b/sys/src/libndb/ndbdedup.c
@@ -1,0 +1,30 @@
+#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;
+}