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Move is_contiguously_hashable check into hash_append

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Peter Dimov
2024-11-03 17:10:23 +02:00
parent 8669a782d0
commit ebd2f4120d
1 changed files with 10 additions and 14 deletions
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24
include/boost/hash2/hash_append.hpp
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@@ -211,18 +211,6 @@ template<class Hash, class Flavor, class T>
hash2::hash_append( h, f, reinterpret_cast<std::uintptr_t>( v ) );
}
// contiguously hashable, non-scalar
template<class Hash, class Flavor, class T>
BOOST_CXX14_CONSTEXPR
typename std::enable_if<
is_contiguously_hashable<T, Flavor::byte_order>::value && !std::is_scalar<T>::value,
void>::type
do_hash_append( Hash& h, Flavor const& /*f*/, T const& v )
{
h.update( &v, sizeof(T) );
}
// floating point
template<class Hash, class Flavor, class T>
@@ -403,9 +391,17 @@ template<class Hash, class Flavor, class T>
// hash_append
template<class Hash, class Flavor = default_flavor, class T> BOOST_CXX14_CONSTEXPR void hash_append( Hash& h, Flavor const& f, T const& v )
template<class Hash, class Flavor = default_flavor, class T>
BOOST_CXX14_CONSTEXPR void hash_append( Hash& h, Flavor const& f, T const& v )
{
do_hash_append( h, f, v );
if( !detail::is_constant_evaluated() && is_contiguously_hashable<T, Flavor::byte_order>::value )
{
h.update( &v, sizeof(T) );
}
else
{
do_hash_append( h, f, v );
}
}
} // namespace hash2