Math: noexcept constructor for Frustum.

src/Magnum/Math/Frustum.h

@@ -59,7 +59,7 @@ template<class T> class Frustum {
         }
 
         /** @brief Constructor */
-        constexpr /*implicit*/ Frustum(const Vector4<T>& left, const Vector4<T>& right, const Vector4<T>& bottom, const Vector4<T>& top, const Vector4<T>& near, const Vector4<T>& far): _data{left, right, bottom, top, near, far} {}
+        constexpr /*implicit*/ Frustum(const Vector4<T>& left, const Vector4<T>& right, const Vector4<T>& bottom, const Vector4<T>& top, const Vector4<T>& near, const Vector4<T>& far) noexcept: _data{left, right, bottom, top, near, far} {}
 
         /** @brief Equality comparison */
         bool operator==(const Frustum<T>& other) const {

src/Magnum/Math/Test/FrustumTest.cpp

@@ -72,6 +72,8 @@ void FrustumTest::construct() {
 
     CORRADE_COMPARE_AS(frustum.planes(), Corrade::Containers::ArrayView<const Vector4>(planes),
                        Corrade::TestSuite::Compare::Container);
+
+    CORRADE_VERIFY((std::is_nothrow_constructible<Frustum, Vector4, Vector4, Vector4, Vector4, Vector4, Vector4>::value));
 }
 
 void FrustumTest::constructFromMatrix() {