Merge pull request #317 from yuriks/make_unique

Add a clone of std::make_unique and revert C++14 requirement

CMakeLists.txt

@@ -5,8 +5,7 @@ cmake_minimum_required(VERSION 2.8.11)
 project(citra)
 
 if (NOT MSVC)
-    # -std=c++14 is only supported on very new compilers, so use the old c++1y alias instead.
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y -Wno-attributes")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wno-attributes")
 else()
     # Silence deprecation warnings
     add_definitions(/D_CRT_SECURE_NO_WARNINGS)

src/common/CMakeLists.txt

@@ -49,6 +49,7 @@ set(HEADERS
             logging/filter.h
             logging/log.h
             logging/backend.h
+            make_unique.h
             math_util.h
             mem_arena.h
             memory_util.h

src/common/make_unique.h

@@ -0,0 +1,16 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+namespace Common {
+
+template <typename T, typename... Args>
+std::unique_ptr<T> make_unique(Args&&... args) {
+    return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+}
+
+} // namespace

src/core/file_sys/archive_romfs.cpp

@@ -5,6 +5,7 @@
 #include <memory>
 
 #include "common/common_types.h"
+#include "common/make_unique.h"
 
 #include "core/file_sys/archive_romfs.h"
 #include "core/file_sys/directory_romfs.h"
@@ -29,7 +30,7 @@ Archive_RomFS::Archive_RomFS(const Loader::AppLoader& app_loader) {
  * @return Opened file, or nullptr
  */
 std::unique_ptr<FileBackend> Archive_RomFS::OpenFile(const Path& path, const Mode mode) const {
-    return std::make_unique<File_RomFS>(this);
+    return Common::make_unique<File_RomFS>(this);
 }
 
 /**
@@ -78,7 +79,7 @@ bool Archive_RomFS::RenameDirectory(const FileSys::Path& src_path, const FileSys
  * @return Opened directory, or nullptr
  */
 std::unique_ptr<DirectoryBackend> Archive_RomFS::OpenDirectory(const Path& path) const {
-    return std::make_unique<Directory_RomFS>();
+    return Common::make_unique<Directory_RomFS>();
 }
 
 } // namespace FileSys

src/core/hle/service/fs/archive.cpp

@@ -7,6 +7,7 @@
 
 #include "common/common_types.h"
 #include "common/file_util.h"
+#include "common/make_unique.h"
 #include "common/math_util.h"
 
 #include "core/file_sys/archive_savedata.h"
@@ -260,7 +261,7 @@ ResultCode CloseArchive(ArchiveHandle handle) {
 // TODO(yuriks): This might be what the fs:REG service is for. See the Register/Unregister calls in
 // http://3dbrew.org/wiki/Filesystem_services#ProgramRegistry_service_.22fs:REG.22
 ResultCode CreateArchive(std::unique_ptr<FileSys::ArchiveBackend>&& backend, ArchiveIdCode id_code) {
-    auto result = id_code_map.emplace(id_code, std::make_unique<Archive>(std::move(backend), id_code));
+    auto result = id_code_map.emplace(id_code, Common::make_unique<Archive>(std::move(backend), id_code));
 
     bool inserted = result.second;
     _dbg_assert_msg_(Service_FS, inserted, "Tried to register more than one archive with same id code");
@@ -281,7 +282,7 @@ ResultVal<Handle> OpenFileFromArchive(ArchiveHandle archive_handle, const FileSy
                           ErrorSummary::NotFound, ErrorLevel::Status);
     }
 
-    auto file = std::make_unique<File>(std::move(backend), path);
+    auto file = Common::make_unique<File>(std::move(backend), path);
     Handle handle = Kernel::g_object_pool.Create(file.release());
     return MakeResult<Handle>(handle);
 }
@@ -378,7 +379,7 @@ ResultVal<Handle> OpenDirectoryFromArchive(ArchiveHandle archive_handle, const F
                           ErrorSummary::NotFound, ErrorLevel::Permanent);
     }
 
-    auto directory = std::make_unique<Directory>(std::move(backend), path);
+    auto directory = Common::make_unique<Directory>(std::move(backend), path);
     Handle handle = Kernel::g_object_pool.Create(directory.release());
     return MakeResult<Handle>(handle);
 }
@@ -392,7 +393,7 @@ ResultCode FormatSaveData() {
 
     // Create the SaveData archive
     std::string savedata_directory = FileUtil::GetUserPath(D_SAVEDATA_IDX);
-    auto savedata_archive = std::make_unique<FileSys::Archive_SaveData>(savedata_directory,
+    auto savedata_archive = Common::make_unique<FileSys::Archive_SaveData>(savedata_directory,
         Kernel::g_program_id);
 
     if (savedata_archive->Initialize()) {
@@ -414,14 +415,14 @@ void ArchiveInit() {
     // archive type is SDMC, so it is the only one getting exposed.
 
     std::string sdmc_directory = FileUtil::GetUserPath(D_SDMC_IDX);
-    auto sdmc_archive = std::make_unique<FileSys::Archive_SDMC>(sdmc_directory);
+    auto sdmc_archive = Common::make_unique<FileSys::Archive_SDMC>(sdmc_directory);
     if (sdmc_archive->Initialize())
         CreateArchive(std::move(sdmc_archive), ArchiveIdCode::SDMC);
     else
         LOG_ERROR(Service_FS, "Can't instantiate SDMC archive with path %s", sdmc_directory.c_str());
 
     std::string systemsavedata_directory = FileUtil::GetUserPath(D_SYSSAVEDATA_IDX);
-    auto systemsavedata_archive = std::make_unique<FileSys::Archive_SDMC>(systemsavedata_directory);
+    auto systemsavedata_archive = Common::make_unique<FileSys::Archive_SDMC>(systemsavedata_directory);
     if (systemsavedata_archive->Initialize()) {
         CreateArchive(std::move(systemsavedata_archive), ArchiveIdCode::SystemSaveData);
     } else {

src/core/loader/loader.cpp

@@ -2,7 +2,9 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
-#include <memory>
+#include <string>
+
+#include "common/make_unique.h"
 
 #include "core/file_sys/archive_romfs.h"
 #include "core/loader/3dsx.h"
@@ -75,7 +77,7 @@ ResultStatus LoadFile(const std::string& filename) {
         // Load application and RomFS
         if (ResultStatus::Success == app_loader.Load()) {
             Kernel::g_program_id = app_loader.GetProgramId();
-            Service::FS::CreateArchive(std::make_unique<FileSys::Archive_RomFS>(app_loader), Service::FS::ArchiveIdCode::RomFS);
+            Service::FS::CreateArchive(Common::make_unique<FileSys::Archive_RomFS>(app_loader), Service::FS::ArchiveIdCode::RomFS);
             return ResultStatus::Success;
         }
         break;