fmemcmpi(3)

💖 fmemcmpi(3) 💖

okay bestie, this one lives in the Library Functions Manual section of the man pages, and it's genuinely such a slay little function. let's get into it 🫶

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✨ NAME ✨

fmemcmpi — fuzzy comparison of two memory areas 🦋

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🌸 SYNOPSIS 🌸

#include <fstrcmp.h>
#define FSTRCMPI_IDENTICAL
#define FSTRCMPI_THRESHOLD
#define FSTRCMPI_ERROR
int fmemcmpi(const void *data1, size_t size1, const void *data2, size_t
     size2);

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💅 DESCRIPTION 💅

The fmemcmpi() function compares the two memory areas — that's the size1 bytes pointed to by data1, and the size2 bytes pointed to by data2. that's it. that's the whole vibe. two blobs of memory, walkin' into a comparison like 👑✨

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🎀 RETURN VALUE 🎀

fmemcmpi hands you back an int value somewhere between 0 and FSTRCMPI_IDENTICAL. let's break down the scale, bestie:

• a value of 0 means the memory areas are utterly unalike 💀 not even a little bit matching.
• a value of FSTRCMPI_IDENTICAL means the memory areas are identical — full match, main character energy, ate and left no crumbs. 🔥
• a value of more than FSTRCMPI_THRESHOLD (and heads up, that threshold lies between 0.0 and FSTRCMP_IDENTICAL) would be considered "similar" by most people. so like, not identical-identical, but close enough that a human would be like "yeah those are the same thing basically". 🙈

and then there's the sad path:

• a value of FSTRCMPI_ERROR (which is always negative) indicates a malloc(3) failure. not the vibe. memory said no. 😭

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🦋 SEE ALSO 🦋

• fmemcmp(3) — fuzzy comparison of two memory areas
• fstrcmpi(3) — fuzzy comparison of two strings
• memcmp(3) — compare memory areas

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🌈 COPYRIGHT 🌈

fstrcmp version 0.7 Copyright (C) 2009 Peter Miller Peter Miller <pmiller@opensource.org.au>

The comparison code is derived from the fuzzy comparison functions in GNU Gettext 0.17. The GNU Gettext comparison functions were, in turn, derived from GNU Diff 2.7.

Copyright (C) 1988-2009 Free Software Foundation

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and that's the whole page, bestie 💖 it's fmemcmpi(3) from fstrcmp version 0.7, brought to you by Peter Miller and a whole lineage of fuzzy-comparison ancestors, and that footer energy is giving 2009 in the best way. go compare some memory, you've got this. periodt. 👑✨🎀