ldb::Slice dev::eth::toSlice(h256 const& _h, unsigned _sub)
{
#if ALL_COMPILERS_ARE_CPP11_COMPLIANT
static thread_local FixedHash<33> h = _h;
h[32] = (uint8_t)_sub;
return (ldb::Slice)h.ref();
#else
static boost::thread_specific_ptr<FixedHash<33>> t_h;
if (!t_h.get())
t_h.reset(new FixedHash<33>);
*t_h = FixedHash<33>(_h);
(*t_h)[32] = (uint8_t)_sub;
return (ldb::Slice)t_h->ref();
#endif //ALL_COMPILERS_ARE_CPP11_COMPLIANT
}
ldb::Slice dev::eth::toSlice(uint64_t _n, unsigned _sub)
{
#if ALL_COMPILERS_ARE_CPP11_COMPLIANT
static thread_local FixedHash<33> h;
toBigEndian(_n, bytesRef(h.data() + 24, 8));
h[32] = (uint8_t)_sub;
return (ldb::Slice)h.ref();
#else
static boost::thread_specific_ptr<FixedHash<33>> t_h;
if (!t_h.get())
t_h.reset(new FixedHash<33>);
bytesRef ref(t_h->data() + 24, 8);
toBigEndian(_n, ref);
(*t_h)[32] = (uint8_t)_sub;
return (ldb::Slice)t_h->ref();
#endif
}