1#include "locale_impl.h"
 2#include "pthread_impl.h"
 3#include "libc.h"
 4
 5locale_t __uselocale(locale_t new)
 6{
 7	pthread_t self = __pthread_self();
 8	locale_t old = self->locale;
 9	locale_t global = &libc.global_locale;
10
11	if (new) self->locale = new == LC_GLOBAL_LOCALE ? global : new;
12
13	return old == global ? LC_GLOBAL_LOCALE : old;
14}
15
16weak_alias(__uselocale, uselocale);