#include <assert.h>
#include <rtapi_bitops.h>

#define _BIT(nr)                 (1UL << (nr))

#define jep_test_and_set_bit(bit, value) \
    (__sync_fetch_and_or(value, _BIT(bit)) & _BIT(bit))
#define mah_test_and_set_bit(bit, value) __sync_fetch_and_or(value, _BIT(bit))

int main()
{
    long x = 1;
    int y = test_and_set_bit(31, &x);
    assert(!y);
    y = test_and_set_bit(31, &x);
    assert(y);

    x = 1;
    y = jep_test_and_set_bit(31, &x);
    assert(!y);
    y = jep_test_and_set_bit(31, &x);
    assert(y);

    x = 1;
    y = mah_test_and_set_bit(31, &x);
    assert(!y);
    y = mah_test_and_set_bit(31, &x);
    assert(y);

    return 0;
}