two-type dot and cross functions

2026-01-04 17:21:04 +07:00 · 2021-02-24 07:23:48 +07:00
parent 302987a422
commit f0b616aa09
7 changed files with 52 additions and 26 deletions
--- a/headers/vmath.hpp/vmath_fun.hpp
+++ b/headers/vmath.hpp/vmath_fun.hpp
@@ -305,10 +305,11 @@ namespace vmath_hpp

 namespace vmath_hpp
 {
-    template < typename T >
-    [[nodiscard]] std::enable_if_t<std::is_arithmetic_v<T>, T>
-    constexpr dot(T x, T y) noexcept {
-        return x * y;
+    template < typename T, typename U
+             , typename V = decltype(std::declval<T>() * std::declval<U>()) >
+    [[nodiscard]] std::enable_if_t<std::is_arithmetic_v<V>, V>
+    constexpr dot(T x, U y) noexcept {
+        return { x * y };
    }

    template < typename T >