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-rw-r--r--sdk/other/strdiff.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/sdk/other/strdiff.c b/sdk/other/strdiff.c
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+++ b/sdk/other/strdiff.c
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+/*
+ * Often used to evaluate similarity of soundex codes.
+ * $Id$
+ * Copyright (c) 1997 by Tycho Softworks.
+ * For conditions of distribution and reuse see product license.
+ */
+
+#include <other/string.h>
+#include <std/math.h>
+
+int strdiff(const char *s1, const char *s2)
+{
+ int l1 = len(s1);
+ int l2 = len(s2);
+ int l = min(l1, l2);
+ int dif = abs(l1 - l2);
+
+ while(l--)
+ {
+ if(*(s1++) != *(s2++))
+ ++dif;
+ }
+ return dif;
+}