Added doc comment for Half [skip ci]

ankane · ankane · commit 4fadcad3e8cb · 2026-03-05T14:15:28.000-08:00
diff --git a/include/pgvector/halfvec.hpp b/include/pgvector/halfvec.hpp
@@ -21,6 +21,7 @@
 
 namespace pgvector {
 
+/// A half vector element.
 #if __STDCPP_FLOAT16_T__
 using Half = std::float16_t;
 #elif defined(__FLT16_MAX__)
