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#include "locale_impl.h"
#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
#include "pthread_impl.h"
#endif
#include "libc.h"
locale_t __uselocale(locale_t new)
{
#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
pthread_t self = __pthread_self();
locale_t old = self->locale;
#else
locale_t old = libc.current_locale;
if (!old) old = LC_GLOBAL_LOCALE;
#endif
locale_t global = &libc.global_locale;
#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
if (new) self->locale = new == LC_GLOBAL_LOCALE ? global : new;
#else
if (new) libc.current_locale = new == LC_GLOBAL_LOCALE ? global : new;
#endif
return old == global ? LC_GLOBAL_LOCALE : old;
}
weak_alias(__uselocale, uselocale);
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