1fmemcmp(3)                 Library Functions Manual                 fmemcmp(3)
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NAME

6       fmemcmp - fuzzy comparison of two memory areas
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SYNOPSIS

9       #include <fstrcmp.h>
10       #define FSTRCMP_IDENTICAL
11       #define FSTRCMP_THRESHOLD
12       #define FSTRCMP_ERROR
13       double  fmemcmp(const  void  *data1,  size_t  size1, const void *data2,
14            size_t size2);
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DESCRIPTION

17       The fmemcmp() function compares the two memory areas, the  size1  bytes
18       pointed to by data1 and the size2 bytes pointed to by data2.
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RETURN VALUE

21       The  fmemcmp  function  returns  a floating point value between 0.0 and
22       FSTRCMP_IDENTICAL.  A value of 0.0 means the memory areas  are  utterly
23       un‐alike.   A  value  of  FSTRCMP_IDENTICAL  means the memory areas are
24       identical.  A value of more than FSTRCMP_THRESHOLD (it lies between 0.0
25       and FSTRCMP_IDENTICAL) would be considered "similar" by most people.
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27       A  value of FSTRCMP_ERROR (always negative) indicates a malloc(3) fail‐
28       ure.
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SEE ALSO

31       fmemcmpi(3)
32               fuzzy comparison of two memory areas
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34       fstrcmp(3)
35               fuzzy comparison of two strings
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37       memcmp(3)
38               compare memory areas
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41       fstrcmp version 0.7
42       Copyright (C) 2009 Peter Miller
43       Peter Miller <pmiller@opensource.org.au>
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45       The comparison code is derived from the fuzzy comparison  functions  in
46       GNU  Gettext 0.17.  The GNU Gettext comparison functions were, in turn,
47       derived from GNU Diff 2.7.
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49       Copyright (C) 1988-2009 Free Software Foundation
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53                                                                    fmemcmp(3)
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