xref: /aosp_15_r20/external/musl/src/locale/uselocale.c (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #include "locale_impl.h"
2*c9945492SAndroid Build Coastguard Worker #include "pthread_impl.h"
3*c9945492SAndroid Build Coastguard Worker #include "libc.h"
4*c9945492SAndroid Build Coastguard Worker 
__uselocale(locale_t new)5*c9945492SAndroid Build Coastguard Worker locale_t __uselocale(locale_t new)
6*c9945492SAndroid Build Coastguard Worker {
7*c9945492SAndroid Build Coastguard Worker 	pthread_t self = __pthread_self();
8*c9945492SAndroid Build Coastguard Worker 	locale_t old = self->locale;
9*c9945492SAndroid Build Coastguard Worker 	locale_t global = &libc.global_locale;
10*c9945492SAndroid Build Coastguard Worker 
11*c9945492SAndroid Build Coastguard Worker 	if (new) self->locale = new == LC_GLOBAL_LOCALE ? global : new;
12*c9945492SAndroid Build Coastguard Worker 
13*c9945492SAndroid Build Coastguard Worker 	return old == global ? LC_GLOBAL_LOCALE : old;
14*c9945492SAndroid Build Coastguard Worker }
15*c9945492SAndroid Build Coastguard Worker 
16*c9945492SAndroid Build Coastguard Worker weak_alias(__uselocale, uselocale);
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