/* Generated by configure */
#include <atomic>
typedef void (*fptr)(int);
typedef std::atomic<fptr> atomicfptr;
void testfunction(int) { }
void test(volatile atomicfptr &a)
{
    fptr v = a.load(std::memory_order_acquire);
    while (!a.compare_exchange_strong(v, &testfunction,
                                      std::memory_order_acq_rel,
                                      std::memory_order_acquire)) {
        v = a.exchange(&testfunction);
    }
    a.store(&testfunction, std::memory_order_release);
}
int main(int argc, char **argv)
{
    (void)argc; (void)argv;
    /* BEGIN TEST: */
    atomicfptr fptr(testfunction);
    test(fptr);
    /* END TEST */
    return 0;
}