third_party/ulib/musl/src/internal/locale_impl.h

#pragma once

#include "libc.h"
#include "threads_impl.h"
#include <locale.h>
#include <stdlib.h>

#define LOCALE_NAME_MAX 15

struct __locale_map {
    const void* map;
    size_t map_size;
    char name[LOCALE_NAME_MAX + 1];
    const struct __locale_map* next;
};

extern const struct __locale_map __c_dot_utf8;
extern const struct __locale_struct __c_locale;
extern const struct __locale_struct __c_dot_utf8_locale;

const struct __locale_map* __get_locale(int, const char*) ATTR_LIBC_VISIBILITY;
const char* __mo_lookup(const void*, size_t, const char*) ATTR_LIBC_VISIBILITY;
const char* __lctrans(const char*, const struct __locale_map*)
    ATTR_LIBC_VISIBILITY;
const char* __lctrans_cur(const char*) ATTR_LIBC_VISIBILITY;
int __loc_is_allocated(locale_t) ATTR_LIBC_VISIBILITY;

#define LCTRANS(msg, lc, loc) __lctrans(msg, (loc)->cat[(lc)])
#define LCTRANS_CUR(msg) __lctrans_cur(msg)

#define C_LOCALE ((locale_t)&__c_locale)
#define UTF8_LOCALE ((locale_t)&__c_dot_utf8_locale)

#define CURRENT_LOCALE (__thrd_current()->locale)

#define CURRENT_UTF8 (!!__thrd_current()->locale->cat[LC_CTYPE])

#undef MB_CUR_MAX
#define MB_CUR_MAX (CURRENT_UTF8 ? 4 : 1)