kfr

commit 7568554cc4d81e78a992ccd2305fae1f0d6b2821
parent bc2d7ecf2549c8899d01ef24f2b211f5d483584a
Author: d.levin256@gmail.com <d.levin256@gmail.com>
Date:   Mon, 29 Aug 2016 05:44:43 +0300

Add is_output_expressions

Diffstat:
M
include/kfr/base/types.hpp
 | 
4
++++

1 file changed, 4 insertions(+), 0 deletions(-)
diff --git a/include/kfr/base/types.hpp b/include/kfr/base/types.hpp
@@ -734,6 +734,10 @@ using is_input_expressions = or_t<std::is_base_of<input_expression, decay<Es>>..
 template <typename E>
 using is_output_expression = std::is_base_of<output_expression, decay<E>>;
 
+/// @brief Check if the type arguments are an output expressions
+template <typename... Es>
+using is_output_expressions = or_t<std::is_base_of<output_expression, decay<Es>>...>;
+
 /// @brief Check if the type argument is a number or a vector of numbers
 template <typename T>
 using is_numeric = is_number<deep_subtype<T>>;