CTYPE_L(3)

💅 character classification functions, but make it locale — ctype_l(3) ✨

okay so this is the Library Functions Manual page for ctype_l(3), and it's giving "all your fave character checks but with a locale glow-up." no cap, bestie, we're keeping every single function and every tiny detail. 🫶

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✨ NAME ✨

digittoint_l, isalnum_l, isalpha_l, isblank_l, iscntrl_l, isdigit_l, isgraph_l, ishexnumber_l, isideogram_l, islower_l, isnumber_l, isphonogram_l, isprint_l, ispunct_l, isrune_l, isspace_l, isspecial_l, isupper_l, isxdigit_l, tolower_l, toupper_l — character classification functions 💖

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🎀 LIBRARY 🎀

Standard C Library (libc, -lc) — she lives in the standard C library, periodt. 🌸

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🦋 SYNOPSIS 🦋

#include <ctype.h>

int
digittoint_l(int c, locale_t loc);

int
isalnum_l(int c, locale_t loc);

int
isalpha_l(int c, locale_t loc);

int
iscntrl_l(int c, locale_t loc);

int
isdigit_l(int c, locale_t loc);

int
isgraph_l(int c, locale_t loc);

int
ishexnumber_l(int c, locale_t loc);

int
isideogram_l(int c, locale_t loc);

int
islower_l(int c, locale_t loc);

int
isnumber_l(int c, locale_t loc);

int
isphonogram_l(int c, locale_t loc);

int
isspecial_l(int c, locale_t loc);

int
isprint_l(int c, locale_t loc);

int
ispunct_l(int c, locale_t loc);

int
isrune_l(int c, locale_t loc);

int
isspace_l(int c, locale_t loc);

int
isupper_l(int c, locale_t loc);

int
isxdigit_l(int c, locale_t loc);

int
tolower_l(int c, locale_t loc);

int
toupper_l(int c, locale_t loc);

tiny heads-up, bestie: isblank_l is in NAME and SEE ALSO, but it doesn't show up with a prototype in this SYNOPSIS list. I'm not inventing one — I'm just telling you what the page says. 💀

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💅 DESCRIPTION 💅

The above functions perform character tests and conversions on the integer c in the locale loc. ✨

They behave in the same way as the versions without the _l suffix, but use the specified locale rather than the global or per-thread locale. literally the whole vibe: same behavior, but you're handing it the locale instead of letting it pick the global or per-thread one. periodt. 💖

Also, the page says <ctype.h>, or as true functions in the C library. See the specific manual pages for more information. 👀

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👑 SEE ALSO 👑

digittoint_l(3), isalnum_l(3), isalpha_l(3), isblank_l(3), iscntrl_l(3), isdigit_l(3), isgraph_l(3), isideogram_l(3), islower_l(3), isphonogram_l(3), isprint_l(3), ispunct_l(3), isrune_l(3), isspace_l(3), isspecial_l(3), isupper_l(3), isxdigit_l(3), tolower_l(3), toupper_l(3), wctype_l(3), xlocale_l(3) 🌈

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⭐ STANDARDS ⭐

These functions conform to IEEE Std 1003.1-2008 (“POSIX.1”), except for digittoint_l(), ishexnumber_l(), isideogram_l(), isnumber_l(), isphonogram_l(), isrune_l() and isspecial_l() which are FreeBSD extensions. so iconic of them, honestly. 👑

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xoxo, bestie — source/version: Debian 💖, date: December 19, 2022 🎀