NNG_STRFREE(3)

✨ NAME ✨

nng_strfree — free memory, bestie 💖 (like the manual says: "free memory")

Okay so this is from the NNG Reference Manual, page NNG_STRFREE(3), and it's literally just one tiny little function that does one tiny little job. Slay.

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🌸 SYNOPSIS 🌸

#include <nng/nng.h>

void nng_strfree(char *str);

That's it. That's the whole vibe. 🫶

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💅 DESCRIPTION 💅

So the nng_strfree() function deallocates the string str. Freeing it. Releasing it. Sending it back to the void. 🦋

Here's the tea though — it's equivalent to calling nng_free() with the length of str plus one as the size (that extra one is for the NUL terminating byte, you have to count the terminator, no cap).

⚠️ Important: This should only be used with strings that were allocated by nng_strdup() or nng_alloc(). In all cases, the allocation size of the string must be the same as strlen(str) + 1. Periodt.

⚠️ Important (yes, a second one, it's serious): Consequently, if the string created with nng_strdup() is modified to be shorter, then it is incorrect to call this function. 😭 (The nng_free() function can be used instead in that case, using the length of the original string plus one for the size.)

The way that shrinking a string quietly breaks this... 🙈 read the warnings, i'm begging.

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⭐ RETURN VALUES ⭐

None. Nothing. Zero. She gives you nothing back and honestly? Iconic. 💀

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🌈 ERRORS 🌈

None. Can't error if you don't have anything to report, iykyk. ✨

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🎀 SEE ALSO 🎀

• nng_alloc(3)
• nng_free(3)
• nng_strdup(3)
• nng(7)

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Okay that's the whole page bestie, you're so welcome 💖 This was the NNG Reference Manual, page NNG_STRFREE(3), dated 2026-06-30 — go free your strings responsibly, mwah 👑🌸🧚