- Optimize distance calculation for tensors with single dense subspace.

- Let EmptySubspace be invalid.
- Add noexcept to get_tensor(s).

2 files changed, 4 insertions, 4 deletions

diff --git a/vespalib/src/vespa/vespalib/datastore/array_store.h b/vespalib/src/vespa/vespalib/datastore/array_store.h
index 4549b81283e..51a1f9fe950 100644
--- a/vespalib/src/vespa/vespalib/datastore/array_store.h
+++ b/vespalib/src/vespa/vespalib/datastore/array_store.h
@@ -94,7 +94,7 @@ private:
     EntryRef  allocate_dynamic_array(size_t array_size, uint32_t type_id);
     EntryRef addLargeArray(ConstArrayRef array);
     EntryRef allocate_large_array(size_t array_size);
-    ConstArrayRef getSmallArray(RefT ref, size_t arraySize) const {
+    ConstArrayRef getSmallArray(RefT ref, size_t arraySize) const noexcept {
         const ElemT *buf = _store.template getEntryArray<ElemT>(ref, arraySize);
         return ConstArrayRef(buf, arraySize);
     }
@@ -104,7 +104,7 @@ private:
         auto size = BufferType::get_dynamic_array_size(entry);
         return ConstArrayRef(entry, size);
     }
-    ConstArrayRef getLargeArray(RefT ref) const {
+    ConstArrayRef getLargeArray(RefT ref) const noexcept {
         const LargeArray *buf = _store.template getEntry<LargeArray>(ref);
         return ConstArrayRef(&(*buf)[0], buf->size());
     }
@@ -114,7 +114,7 @@ public:
     ArrayStore(const ArrayStoreConfig &cfg, std::shared_ptr<alloc::MemoryAllocator> memory_allocator, TypeMapper&& mapper);
     ~ArrayStore() override;
     EntryRef add(ConstArrayRef array);
-    ConstArrayRef get(EntryRef ref) const {
+    ConstArrayRef get(EntryRef ref) const noexcept {
         if (!ref.valid()) [[unlikely]] {
             return ConstArrayRef();
         }
diff --git a/vespalib/src/vespa/vespalib/datastore/datastore.h b/vespalib/src/vespa/vespalib/datastore/datastore.h
index fa231e9cf94..0226c780cf1 100644
--- a/vespalib/src/vespa/vespalib/datastore/datastore.h
+++ b/vespalib/src/vespa/vespalib/datastore/datastore.h
@@ -96,7 +96,7 @@ public:
 
     EntryRef addEntry(const EntryType &e);
 
-    const EntryType &getEntry(EntryRef ref) const {
+    const EntryType &getEntry(EntryRef ref) const noexcept {
         return *this->template getEntry<EntryType>(RefType(ref));
     }
 };