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#include <thread>
#include <cstdio>
#include <cassert>
thread_local int tls;
thread_local struct {
int a;
double b;
} data = {1, 2};
thread_local int array[10];
void thread(void) {
++tls;
data.a = 3;
data.b = 4;
assert(tls == 1);
assert(data.a == 3);
assert(data.b == 4);
assert(array[9] == 0);
}
int main(void) {
array[9] = 1337;
std::thread t(thread);
t.join();
assert(tls == 0);
assert(data.a == 1);
assert(data.b == 2);
assert(array[9] == 1337);
return 0;
}
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