third_party/ulib/musl/src/locale/duplocale.c

#include "libc.h"
#include "locale_impl.h"
#include <stdlib.h>
#include <string.h>

locale_t __duplocale(locale_t old) {
    locale_t new = malloc(sizeof *new);
    if (!new)
        return 0;
    if (old == LC_GLOBAL_LOCALE)
        old = &libc.global_locale;
    *new = *old;
    return new;
}

weak_alias(__duplocale, duplocale);