From c8570c66876d81305e4ca17f05dde9f668de5a80 Mon Sep 17 00:00:00 2001
From: BlackMATov <blackmat@mail.ru>
Date: Fri, 12 Feb 2021 18:16:54 +0700
Subject: [PATCH] pair sincos for vectors

---
 headers/vmath.hpp/vmath_vec_fun.hpp | 11 ++++++++---
 untests/vmath_vec_fun_tests.cpp     |  3 +++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/headers/vmath.hpp/vmath_vec_fun.hpp b/headers/vmath.hpp/vmath_vec_fun.hpp
index e8392a4..3ab9274 100644
--- a/headers/vmath.hpp/vmath_vec_fun.hpp
+++ b/headers/vmath.hpp/vmath_vec_fun.hpp
@@ -576,10 +576,15 @@ namespace vmath_hpp
         return map_join([](T x) { return atanh(x); }, xs);
     }
 
-    template < typename T, size_t Size >
+    template < typename T, std::size_t Size >
+    std::pair<vec<T, Size>, vec<T, Size>> sincos(const vec<T, Size>& xs) {
+        return { sin(xs), cos(xs) };
+    }
+
+    template < typename T, std::size_t Size >
     void sincos(const vec<T, Size>& xs, vec<T, Size>* ss, vec<T, Size>* cs) {
-        *ss = map_join([](T x){ return sin(x); }, xs);
-        *cs = map_join([](T x){ return cos(x); }, xs);
+        *ss = sin(xs);
+        *cs = cos(xs);
     }
 }
 
diff --git a/untests/vmath_vec_fun_tests.cpp b/untests/vmath_vec_fun_tests.cpp
index 408ad3f..8f67e1c 100644
--- a/untests/vmath_vec_fun_tests.cpp
+++ b/untests/vmath_vec_fun_tests.cpp
@@ -155,6 +155,9 @@ TEST_CASE("vmath/vec_fun") {
             sincos(float2(10.f,15.f), &out_ss, &out_cs);
             REQUIRE(out_ss == uapprox2(sin(10.f), sin(15.f)));
             REQUIRE(out_cs == uapprox2(cos(10.f), cos(15.f)));
+            const auto [out_ss2, out_cs2] = sincos(float2(10.f,15.f));
+            REQUIRE(out_ss2 == uapprox2(sin(10.f), sin(15.f)));
+            REQUIRE(out_cs2 == uapprox2(cos(10.f), cos(15.f)));
         }
     }