static ossl_inline size_t constant_time_is_zero_s(size_t a)
{
    return constant_time_msb_s(~a & (a - 1));
}
['static ossl_inline size_t constant_time_eq_s(size_t a, size_t b)\n{\n    return constant_time_is_zero_s(a ^ b);\n}', 'static ossl_inline size_t constant_time_is_zero_s(size_t a)\n{\n    return constant_time_msb_s(~a & (a - 1));\n}']