update headers

ios/include/math/mat2.h

@@ -243,7 +243,9 @@ public:
         uint64_t result = 0;
         // For some reason clang is not able to vectoize this loop when the number of iteration
         // is known and constant (!?!?!). Still this is better than operator==.
+#if defined(__clang__)
 #pragma clang loop vectorize_width(2)
+#endif
         for (size_t i = 0; i < sizeof(TMat22) / sizeof(uint64_t); i++) {
             result |= li[i] ^ ri[i];
         }

ios/include/math/mat4.h

@@ -491,11 +491,22 @@ template<typename T>
 constexpr TMat44<T> TMat44<T>::frustum(T left, T right, T bottom, T top, T near, T far) noexcept {
     TMat44<T> m;
     m[0][0] = (2 * near) / (right - left);
+    // 0
+    // 0
+    // 0
+
+    // 0
     m[1][1] = (2 * near) / (top - bottom);
+    // 0
+    // 0
+
     m[2][0] = (right + left) / (right - left);
     m[2][1] = (top + bottom) / (top - bottom);
     m[2][2] = -(far + near) / (far - near);
     m[2][3] = -1;
+
+    // 0
+    // 0
     m[3][2] = -(2 * far * near) / (far - near);
     m[3][3] = 0;
     return m;