libnvme_realloc(9)

💖 libnvme_realloc — the resize-your-buffer chapter of the libnvme API manual 💖

okay bestie, welcome to libnvme_realloc(9) — yes that's the man page number, yes we're fancy. This is the libnvme API manual and today's main character is a little function that takes your memory buffer and stretches it (or squishes it) to a new size. slay.

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✨ NAME ✨

libnvme_realloc — resize an allocated memory buffer 🎀

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🌸 SYNOPSIS 🌸

void * libnvme_realloc (void *p , size_t len );

that's it, that's the whole vibe. one function, two args, zero drama (mostly).

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🦋 ARGUMENTS 🦋

• p — the existing memory buffer you wanna resize. it's the glow-up candidate 💅
• len — the new size, in bytes. the exact measurements, no cap 📏

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🔥 DESCRIPTION 🔥

so what it does: it resizes the memory buffer that p points to, so it ends up being len bytes. iconic.

the returned buffer may be relocated — like, it might not live at the same address anymore, so don't get attached to the old pointer, bestie 😭. if the expansion succeeds, any newly allocated portion of the buffer is zero-initialized — freshly zeroed, clean, pristine, it's giving brand new ✨.

and here's a cute little plot twist: if p is NULL, this function behaves like libnvme_alloc. so NULL in, fresh allocation energy out 🫶.

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👑 RETURN 👑

on success you get a pointer to the resized memory buffer. gorgeous. 🌈

on failure you get NULL. 😭 and listen — on failure, the original buffer referenced by p remains valid and unchanged. it's fine, it survives, nothing is lost, you can breathe 💜.

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ok but seriously: that relocation thing is real. always take the pointer this function hands back, not the one you passed in. iykyk 💀

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that's the whole page, bestie — go resize something responsibly 🧚‍♀️

goodbye from the libnvme_realloc(9) page of the libnvme API manual, dated October 2026 — same energy forever, mwah 💋🎀💖