EC_get_builtin_curves
size_t n, crv_len = EC_get_builtin_curves(NULL, 0);
EC_get_builtin_curves(curves, crv_len);
size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
crv_len = EC_get_builtin_curves(NULL, 0);
|| !TEST_true(EC_get_builtin_curves(curves, crv_len)))
crv_len = EC_get_builtin_curves(NULL, 0);
|| !TEST_true(EC_get_builtin_curves(curves, crv_len))) {
crv_len = EC_get_builtin_curves(NULL, 0);
|| !TEST_true(EC_get_builtin_curves(curves, crv_len)))