libstrat: convert to experimental new (super-accurate) sf allocation semantics

libraries/libstratosphere/include/stratosphere/sf/sf_std_allocation_policy.hpp

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#include <stratosphere/sf/sf_common.hpp>
+#include <stratosphere/sf/sf_allocation_policies.hpp>
+
+namespace ams::sf {
+
+    template<template<typename> class StdAllocator>
+    class StdAllocationPolicy {
+        public:
+            static constexpr bool HasStatefulAllocator = false;
+            using Allocator = impl::StatelessDummyAllocator;
+
+            template<typename T>
+            struct StatelessAllocator {
+                static void *Allocate(size_t size) {
+                    return StdAllocator<T>().allocate(size / sizeof(T));
+                }
+                static void Deallocate(void *ptr, size_t size) {
+                    StdAllocator<T>().deallocate(static_cast<T *>(ptr), size / sizeof(T));
+                }
+            };
+
+            template<typename T>
+            static void *AllocateAligned(size_t size, size_t align) {
+                return StdAllocator<T>().allocate(size / sizeof(T));
+            }
+
+            template<typename T>
+            static void DeallocateAligned(void *ptr, size_t size, size_t align) {
+                StdAllocator<T>().deallocate(static_cast<T *>(ptr), size / sizeof(T));
+            }
+    };
+
+}