stringprep_utf8_to_unichar(3)

πŸ’– stringprep_utf8_to_unichar β€” the libidn glow-up page πŸ’–

okay bestie, welcome to the libidn corner of the manual πŸ’… this one lives in stringprep_utf8_to_unichar(3), and no, that name is not a typo, that's just how the libidn girlies name things πŸŽ€


✨ NAME ✨

stringprep_utf8_to_unichar β€” it's an API function, bestie. that's the whole vibe πŸ¦‹


✨ SYNOPSIS ✨

#include <stringprep.h>

uint32_t stringprep_utf8_to_unichar(const char * p);

look at her. one argument. one return. zero drama 🌸


✨ ARGUMENTS ✨

  • const char * p β€” a pointer to a Unicode character encoded as UTF-8. that's it, that's the whole assignment, she just wants the bytes πŸ’œ

✨ DESCRIPTION ✨

so what does she do, you ask? she converts a sequence of bytes encoded as UTF-8 to a Unicode character. literally that's the job. bytes in, character out. iconic behaviour, no notes ✨

and now the part where you gotta pay attention, bestie, because this is the scary bit:

If p does not point to a valid UTF-8 encoded character, results are undefined. not "returns an error", not "returns 0", just undefined. 😭 the compiler is not gonna save you, the runtime is not gonna save you, only your own careful input validation is gonna save you. respect the pointer. 🫢

Return value: the resulting character. πŸŽ€


✨ DESCRIPTION ✨

(yeah she said it twice, and honestly? she ate both times, so we're keeping both πŸ’…)

she converts a sequence of bytes encoded as UTF-8 to a Unicode character. fr fr, that's the function.

If p does not point to a valid UTF-8 encoded character, results are undefined. 🩷 still true the second time around, still not kidding.

Return value: the resulting character. πŸ‘‘


✨ REPORTING BUGS ✨

found a bug? first of all, relatable, second of all, tell the libidn team:

be nice, be specific, include the details, they're doing their best and so are you πŸ’–


Copyright Β© 2002-2026 Simon Josefsson.

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. 🫢 legal slay, honestly.


✨ SEE ALSO ✨

The full documentation for libidn is maintained as a Texinfo manual. If the info and libidn programs are properly installed at your site, the command

info libidn

should give you access to the complete manual. πŸ“–

As an alternative you may obtain the manual from:

https://www.gnu.org/software/libidn/manual/

and that's the whole page, bestie πŸ¦‹ this was libidn 1.44, page stringprep_utf8_to_unichar(3), dropping out of the group chat with main character energy πŸ‘‘βœ¨ mwah πŸ’‹

πŸ“¦ where this page comes from