Added std::span constructor to Vector

Author: ankane

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.2.1 (unreleased)
+
+- Added `std::span` constructor to `Vector`
+
 ## 0.2.0 (2024-07-10)
 
 - Added support for `halfvec` and `sparsevec` types

include/vector.hpp

@@ -9,6 +9,10 @@
 #include <ostream>
 #include <vector>
 
+#if __cplusplus >= 202002L
+#include <span>
+#endif
+
 namespace pgvector {
 class Vector {
 public:
@@ -26,6 +30,12 @@ class Vector {
     value_ = std::vector<float>{value, value + n};
   }
 
+#if __cplusplus >= 202002L
+  Vector(std::span<const float> value) {
+    value_ = std::vector<float>(value.begin(), value.end());
+  }
+#endif
+
   size_t dimensions() const {
     return value_.size();
   }