PRINTF_L(3)

💖 PRINTF_L(3) 💖 — formatted output conversion, fresh from the Library Functions Manual ✨

🌸 NAME 🌸

printf_l, asprintf_l, fprintf_l, snprintf_l, sprintf_l, vasprintf_l, vfprintf_l, vprintf_l, vsnprintf_l, vsprintf_l — formatted output conversion. That’s the whole squad, bestie 💅

🎀 LIBRARY 🎀

It’s in the Standard C Library (libc, -lc) — obviously, icon behavior 🫶

✨ SYNOPSIS ✨

okay so first you gotta include these, no cap:

#include <stdio.h>
#include <xlocale.h>

then the function lineup is literally:

int
printf_l(locale_t loc, const char * restrict format, ...);

int
asprintf_l(char **ret, locale_t loc, const char * format, ...);

int
fprintf_l(FILE * restrict stream, locale_t loc,
    const char * restrict format, ...);

int
snprintf_l(char * restrict str, size_t size, locale_t loc,
    const char * restrict format, ...);

int
sprintf_l(char * restrict str, locale_t loc,
    const char * restrict format, ...);

int
vasprintf_l(char **ret, locale_t loc, const char *format, va_list ap);

int
vfprintf_l(FILE * restrict stream, locale_t loc,
    const char * restrict format, va_list ap);

int
vprintf_l(locale_t loc, const char * restrict format, va_list ap);

int
vsnprintf_l(char * restrict str, size_t size, locale_t loc,
    const char * restrict format, va_list ap);

int
vsprintf_l(char * restrict str, locale_t loc,
    const char * restrict format, va_list ap);

🦋 DESCRIPTION 🦋

Okay so the functions above are used to convert formatted output in the locale loc. They behave in the same way as the versions without the _l suffix, but they use the specified locale rather than the global or per-thread locale. See the specific manual pages for more information — that’s where the full lore lives 💖

🔥 SEE ALSO 🔥

• printf(3) — go check it, bestie
• xlocale(3) — locale deets, iykyk

💅 STANDARDS 💅

ngl, these functions do not conform to any specific standard so they should be considered as non-portable local extensions. That’s the tea ☕✨

🌈 HISTORY 🌈

These functions first appeared in Darwin and were first implemented in FreeBSD 9.1. periodt 💀

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🫶 aaaand that’s the page! source/version energy: Debian, date: April 7, 2012, page: PRINTF_L(3) — mwah, bye bestie 💋💖