Frustum construction build fix

Author: Epixu

source/Primitives/TFrustum.hpp

@@ -69,13 +69,15 @@ namespace Langulus::Math
       using MatrixType = TMatrix<ScalarType, MemberCount + 1>;
       static_assert(MemberCount > 1, "Can't have one-dimensional frustum");
 
-      TPlane<T> mPlanes[MemberCount * 2];
+      ::std::array<TPlane<T>, MemberCount * 2> mPlanes;
 
       enum {Left = 0, Right, Top, Bottom, Near, Far};
 
    public:
-      TFrustum() noexcept;
-      TFrustum(const MatrixType&) noexcept;
+      constexpr TFrustum() noexcept;
+      template<template<class> class S> requires CT::Semantic<S<TFrustum<T>>>
+      constexpr TFrustum(S<TFrustum>&&) noexcept;
+      constexpr TFrustum(const MatrixType&) noexcept;
 
       NOD() constexpr bool IsDegenerate() const noexcept;
       NOD() constexpr bool IsHollow() const noexcept;

source/Primitives/TFrustum.inl

@@ -18,7 +18,7 @@ namespace Langulus::Math
 
    /// Default unit frustum construction                                      
    TEMPLATE() LANGULUS(INLINED)
-   TFrustum<T>::TFrustum() noexcept {
+   constexpr TFrustum<T>::TFrustum() noexcept {
       const T right {0.5, 0, 0};
       const T top   {0, 0.5, 0};
 
@@ -34,10 +34,16 @@ namespace Langulus::Math
       }
    }
 
+   /// Copy/move construction                                                 
+   TEMPLATE() template<template<class> class S>
+   requires CT::Semantic<S<TFrustum<T>>> LANGULUS(INLINED)
+   constexpr TFrustum<T>::TFrustum(S<TFrustum<T>>&& s) noexcept
+      : mPlanes {s->mPlanes} {}
+
    /// Create a frustum by deconstructing a view*projection matrix            
    ///   @param pv - projected view matrix                                    
    TEMPLATE() LANGULUS(INLINED)
-   TFrustum<T>::TFrustum(const MatrixType& pv) noexcept {
+   constexpr TFrustum<T>::TFrustum(const MatrixType& pv) noexcept {
       const auto right = pv.template GetRow<0>();
       const auto top   = pv.template GetRow<1>();
       const auto eye   = pv.template GetRow<(MemberCount > 2 ? 3 : 2)>() * (-1);