Correctly redeclare generate_view with constraints

CaseyCarter · Dec 24, 2018 · 814b4f6 · 814b4f6
1 parent 4795d96
commit 814b4f6
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/include/stl2/view/generate.hpp b/include/stl2/view/generate.hpp
@@ -62,7 +62,8 @@ STL2_OPEN_NAMESPACE {
 			{ return {}; }
 		};
 
-		template<class F>
+		template<CopyConstructibleObject F>
+		requires Invocable<F&>
 		struct generate_view<F>::__iterator {
 			using value_type = result_t;
 			using difference_type = std::intmax_t;