diff --git a/arm9/source/animation.h b/arm9/source/animation.h
index 2e708ea..8f478a8 100644
--- a/arm9/source/animation.h
+++ b/arm9/source/animation.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _ANIMATION_H_
-#define _ANIMATION_H_
+#pragma once
 
 #include "ui.h"
 
@@ -65,5 +64,3 @@ typedef t_singleton<cAnimationManager> animationManager_s;
 inline cAnimationManager& animationManager() {
     return animationManager_s::instance();
 }
-
-#endif  //_ANIMATION_H_
diff --git a/arm9/source/bigclock.h b/arm9/source/bigclock.h
index f5deb5e..2c09ef5 100644
--- a/arm9/source/bigclock.h
+++ b/arm9/source/bigclock.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _BIGCLOCK_H_
-#define _BIGCLOCK_H_
+#pragma once
 
 #include "bmp15.h"
 #include "datetime.h"
@@ -61,5 +60,3 @@ typedef t_singleton<cBigClock> bigClock_s;
 inline cBigClock& bigClock() {
     return bigClock_s::instance();
 }
-
-#endif  //_BIGCLOCK_H_
diff --git a/arm9/source/bmp15.h b/arm9/source/bmp15.h
index 788d716..35dbb81 100644
--- a/arm9/source/bmp15.h
+++ b/arm9/source/bmp15.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _BMP15_H_
-#define _BMP15_H_
+#pragma once
 
 #include <nds.h>
 #include <memory>
@@ -64,5 +63,3 @@ cBMP15 createBMP15FromFile(const std::string& filename);
 cBMP15 createBMP15FromMem(void* mem);
 // void destroyBMP15( cBMP15 * bmp );
 // void destroyBMP15ByFilename( const char * filename );
-
-#endif  //_BMP15_H_
diff --git a/arm9/source/calendar.h b/arm9/source/calendar.h
index 4306534..61ab51f 100644
--- a/arm9/source/calendar.h
+++ b/arm9/source/calendar.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _CALENDAR_H_
-#define _CALENDAR_H_
+#pragma once
 
 #include "bmp15.h"
 #include "datetime.h"
@@ -68,5 +67,3 @@ typedef t_singleton<cCalendar> calendar_s;
 inline cCalendar& calendar() {
     return calendar_s::instance();
 }
-
-#endif  //_CALENDAR_H_
diff --git a/arm9/source/calendarwnd.h b/arm9/source/calendarwnd.h
index d5b0216..80b2af3 100644
--- a/arm9/source/calendarwnd.h
+++ b/arm9/source/calendarwnd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _CALENDARWND_H_
-#define _CALENDARWND_H_
+#pragma once
 
 #include <nds.h>
 #include "form.h"
@@ -46,5 +45,3 @@ typedef t_singleton<cCalendarWnd> calendarWnd_s;
 inline cCalendarWnd& calendarWnd() {
     return calendarWnd_s::instance();
 }
-
-#endif  //_CALENDARWND_H_
diff --git a/arm9/source/cheatwnd.h b/arm9/source/cheatwnd.h
index 101ef01..af8330f 100644
--- a/arm9/source/cheatwnd.h
+++ b/arm9/source/cheatwnd.h
@@ -16,8 +16,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __CHEATWND_H__
-#define __CHEATWND_H__
+#pragma once
 
 #include "button.h"
 #include "form.h"
@@ -92,5 +91,3 @@ class cCheatWnd : public akui::cForm {
     std::vector<size_t> _indexes;
     std::string _fileName;
 };
-
-#endif
diff --git a/arm9/source/datetime.h b/arm9/source/datetime.h
index 66b0ca2..20316e3 100644
--- a/arm9/source/datetime.h
+++ b/arm9/source/datetime.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _DATETIME_H_
-#define _DATETIME_H_
+#pragma once
 
 #include <nds.h>
 #include <time.h>
@@ -57,5 +56,3 @@ typedef t_singleton<cDateTime> dateTime_s;
 inline cDateTime& datetime() {
     return dateTime_s::instance();
 }
-
-#endif  //_DATETIME_H_
diff --git a/arm9/source/dbgtool.h b/arm9/source/dbgtool.h
index 79aa6cc..ccd317e 100644
--- a/arm9/source/dbgtool.h
+++ b/arm9/source/dbgtool.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _DBG_TOOL_H_
-#define _DBG_TOOL_H_
+#pragma once
 
 #include <nds.h>
 #include <stdarg.h>
@@ -70,5 +69,3 @@ static inline void wait_press_b() {
 #else
 #define wait_press_b()
 #endif  // DEBUG
-
-#endif  //_DBG_TOOL_H_
diff --git a/arm9/source/diskicon.h b/arm9/source/diskicon.h
index b0dd6b4..ffe9ccd 100644
--- a/arm9/source/diskicon.h
+++ b/arm9/source/diskicon.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _DISKICON_H_
-#define _DISKICON_H_
+#pragma once
 
 #include <nds.h>
 #include "singleton.h"
@@ -55,5 +54,3 @@ typedef t_singleton<cDiskIcon> diskIcon_s;
 inline cDiskIcon& diskIcon() {
     return diskIcon_s::instance();
 }
-
-#endif  //_DISKIOICON_H_
diff --git a/arm9/source/dsrom.h b/arm9/source/dsrom.h
index d25f98e..a6caf53 100644
--- a/arm9/source/dsrom.h
+++ b/arm9/source/dsrom.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _DSROM_H_
-#define _DSROM_H_
+#pragma once
 
 #include <nds.h>
 #include <string.h>
@@ -76,5 +75,3 @@ class DSRomInfo {
     };
     void setBanner(const std::string& anExtIcon, const u8* aBanner);
 };
-
-#endif  //_DSROM_H_
diff --git a/arm9/source/exptools.h b/arm9/source/exptools.h
index 1293766..686e44e 100644
--- a/arm9/source/exptools.h
+++ b/arm9/source/exptools.h
@@ -17,8 +17,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __EXPTOOLS_H__
-#define __EXPTOOLS_H__
+#pragma once
 
 #include <nds.h>
 #include "singleton.h"
@@ -71,5 +70,3 @@ typedef t_singleton<cExpansion> cExpansion_s;
 inline cExpansion& expansion() {
     return cExpansion_s::instance();
 }
-
-#endif
diff --git a/arm9/source/expwnd.h b/arm9/source/expwnd.h
index 7566849..1b85489 100644
--- a/arm9/source/expwnd.h
+++ b/arm9/source/expwnd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __EXPWND_H__
-#define __EXPWND_H__
+#pragma once
 
 #include <string>
 #include "dsrom.h"
@@ -55,5 +54,3 @@ class cExpWnd : public akui::cForm {
     akui::cFormDesc _renderDesc;
     std::string _romName;
 };
-
-#endif  //_HELPWND_H_
diff --git a/arm9/source/favorites.h b/arm9/source/favorites.h
index 33b4bf3..468667f 100644
--- a/arm9/source/favorites.h
+++ b/arm9/source/favorites.h
@@ -17,8 +17,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __FAVORITES_H__
-#define __FAVORITES_H__
+#pragma once
 
 #include <string>
 
@@ -28,5 +27,3 @@ class cFavorites {
     static bool UpdateFavorites(const std::string& aOldFileName, const std::string& aNewFileName);
     static bool RemoveFromFavorites(const std::string& aFileName);
 };
-
-#endif
diff --git a/arm9/source/fileicons.h b/arm9/source/fileicons.h
index 93453d9..7c46a87 100644
--- a/arm9/source/fileicons.h
+++ b/arm9/source/fileicons.h
@@ -16,8 +16,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __FILEICONS_H__
-#define __FILEICONS_H__
+#pragma once
 
 #include <set>
 #include <vector>
@@ -63,5 +62,3 @@ typedef t_singleton<cFileIcons> fileIcons_s;
 inline cFileIcons& fileIcons() {
     return fileIcons_s::instance();
 }
-
-#endif
diff --git a/arm9/source/flags.h b/arm9/source/flags.h
index 2f16c93..378789f 100644
--- a/arm9/source/flags.h
+++ b/arm9/source/flags.h
@@ -17,8 +17,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __FLAGS_H__
-#define __FLAGS_H__
+#pragma once
 
 #include <nds.h>
 
@@ -36,5 +35,3 @@
 #define PATCH_LANGUAGE_MASK 0x0000e000
 #define PATCH_LANGUAGE_SHIFT 13
 //#define PATCH_NEXT          BIT(16)
-
-#endif
diff --git a/arm9/source/font/font.h b/arm9/source/font/font.h
index e7faff3..ae630ad 100644
--- a/arm9/source/font/font.h
+++ b/arm9/source/font/font.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _FONT_H_
-#define _FONT_H_
+#pragma once
 
 #include <string>
 #include "gdi.h"
@@ -40,5 +39,3 @@ class cFont {
     virtual bool Load(const char* aFileName) = 0;
     virtual u32 FontRAM(void);
 };
-
-#endif  //_FONT_H_
diff --git a/arm9/source/font/font_pcf.h b/arm9/source/font/font_pcf.h
index 2ce9ddf..05e3075 100644
--- a/arm9/source/font/font_pcf.h
+++ b/arm9/source/font/font_pcf.h
@@ -22,8 +22,7 @@
   supported only fonts with ...
 */
 
-#ifndef __FONT_PCF_H__
-#define __FONT_PCF_H__
+#pragma once
 
 #include "font.h"
 
@@ -81,5 +80,3 @@ class cFontPcf : public cFont {
     void Info(const char* aString, u32* aWidth, u32* aSymbolCount);
     u32 FontRAM(void);
 };
-
-#endif
diff --git a/arm9/source/font/font_pcf_internals.h b/arm9/source/font/font_pcf_internals.h
index 67412b1..bfa67f5 100644
--- a/arm9/source/font/font_pcf_internals.h
+++ b/arm9/source/font/font_pcf_internals.h
@@ -17,8 +17,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __FONT_PCF_INTERNALS_H__
-#define __FONT_PCF_INTERNALS_H__
+#pragma once
 
 #include <nds.h>
 
@@ -84,5 +83,3 @@ struct SPcfAccel {
     u32 iFontDescent;
     u32 iMaxOverlap;
 };
-
-#endif
diff --git a/arm9/source/gamecode.h b/arm9/source/gamecode.h
index 8f2ec02..034a506 100644
--- a/arm9/source/gamecode.h
+++ b/arm9/source/gamecode.h
@@ -16,13 +16,10 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __GAMECODE_H__
-#define __GAMECODE_H__
+#pragma once
 
 inline u32 gamecode(const char* aGameCode) {
     u32 gameCode;
     memcpy(&gameCode, aGameCode, sizeof(gameCode));
     return gameCode;
 }
-
-#endif
diff --git a/arm9/source/gbaloader.h b/arm9/source/gbaloader.h
index 85dae47..338c906 100644
--- a/arm9/source/gbaloader.h
+++ b/arm9/source/gbaloader.h
@@ -17,8 +17,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __GBALOADER_H__
-#define __GBALOADER_H__
+#pragma once
 
 #include <nds/ndstypes.h>
 #include <string>
@@ -46,5 +45,3 @@ class CGbaLoader {
     static bool CheckPSRAM(u32 aSize);
     static void StartGBA(void);
 };
-
-#endif
diff --git a/arm9/source/gbapatcher.h b/arm9/source/gbapatcher.h
index 89cc120..fdea6a8 100644
--- a/arm9/source/gbapatcher.h
+++ b/arm9/source/gbapatcher.h
@@ -17,8 +17,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __GBAPATCHER_H__
-#define __GBAPATCHER_H__
+#pragma once
 
 #include <nds.h>
 #include <setjmp.h>
@@ -148,5 +147,3 @@ class CGbaPatcher {
         return iResultSize;
     };
 };
-
-#endif
diff --git a/arm9/source/gdi.h b/arm9/source/gdi.h
index 0e081e0..86aa5eb 100644
--- a/arm9/source/gdi.h
+++ b/arm9/source/gdi.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _GDI_H_
-#define _GDI_H_
+#pragma once
 
 #include <nds.h>
 #include <vector>
@@ -143,5 +142,3 @@ typedef t_singleton<cGdi> cGdi_s;
 inline cGdi& gdi() {
     return cGdi_s::instance();
 }
-
-#endif  //_GDI_H_
diff --git a/arm9/source/globalsettings.h b/arm9/source/globalsettings.h
index 229fe12..f3ee8ee 100644
--- a/arm9/source/globalsettings.h
+++ b/arm9/source/globalsettings.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _GLOBALSETTINGS_H_
-#define _GLOBALSETTINGS_H_
+#pragma once
 
 #include <nds.h>
 #include <string>
@@ -79,5 +78,3 @@ typedef t_singleton<cGlobalSettings> globalSettings_s;
 inline cGlobalSettings& gs() {
     return globalSettings_s::instance();
 }
-
-#endif  //_GLOBALSETTINGS_H_
diff --git a/arm9/source/helpwnd.h b/arm9/source/helpwnd.h
index 723b949..fb02865 100644
--- a/arm9/source/helpwnd.h
+++ b/arm9/source/helpwnd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _HELPWND_H_
-#define _HELPWND_H_
+#pragma once
 
 #include <string>
 #include "dsrom.h"
@@ -55,5 +54,3 @@ class cHelpWnd : public akui::cForm {
 
     std::string _helpText;
 };
-
-#endif  //_HELPWND_H_
diff --git a/arm9/source/icons.h b/arm9/source/icons.h
index ae3d772..31944ab 100644
--- a/arm9/source/icons.h
+++ b/arm9/source/icons.h
@@ -16,8 +16,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __ICONS_H__
-#define __ICONS_H__
+#pragma once
 
 #include <nds.h>
 
@@ -25,5 +24,3 @@ class cIcons {
   public:
     static void maskBlt(const u16* aSrc, u16* aDst);
 };
-
-#endif
diff --git a/arm9/source/inifile.h b/arm9/source/inifile.h
index 5eb23ff..7b4a119 100644
--- a/arm9/source/inifile.h
+++ b/arm9/source/inifile.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _INIFILE_H_
-#define _INIFILE_H_
+#pragma once
 
 #include <map>
 #include <string>
@@ -66,5 +65,3 @@ class CIniFile {
     std::string GetString(const std::string& Section, const std::string& Item);
     int GetInt(const std::string& Section, const std::string& Item);
 };
-
-#endif  // _INIFILE_H_
diff --git a/arm9/source/irqs.h b/arm9/source/irqs.h
index d637c14..ed755ed 100644
--- a/arm9/source/irqs.h
+++ b/arm9/source/irqs.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _IRQS_H_
-#define _IRQS_H_
+#pragma once
 
 #include <nds.h>
 #include "singleton.h"
@@ -49,5 +48,3 @@ typedef t_singleton<cIRQ> irq_s;
 inline cIRQ& irq() {
     return irq_s::instance();
 }
-
-#endif  //_IRQS_H_
diff --git a/arm9/source/language.h b/arm9/source/language.h
index b6a09d4..67526af 100644
--- a/arm9/source/language.h
+++ b/arm9/source/language.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _LANGUAGE_H_
-#define _LANGUAGE_H_
+#pragma once
 
 #include "dbgtool.h"
 #include "globalsettings.h"
@@ -45,5 +44,3 @@ inline cLanguageFile& lang() {
 #define LANG(i, t) lang().GetString(i, t, t)
 
 bool stringComp(const std::string& item1, const std::string& item2);
-
-#endif  //_LANGUAGE_H_
diff --git a/arm9/source/mainlist.h b/arm9/source/mainlist.h
index 72527ee..ecf1721 100644
--- a/arm9/source/mainlist.h
+++ b/arm9/source/mainlist.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _MAINLIST_H_
-#define _MAINLIST_H_
+#pragma once
 
 #include <nds.h>
 #include "dsrom.h"
@@ -134,5 +133,3 @@ class cMainList : public akui::cListView {
   public:
     u32 Slot2(void) { return _topSlot2; }
 };
-
-#endif  //_MAINLIST_H_
diff --git a/arm9/source/mainwnd.h b/arm9/source/mainwnd.h
index f2f2c04..d9a48fa 100644
--- a/arm9/source/mainwnd.h
+++ b/arm9/source/mainwnd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _MAINWND_H_
-#define _MAINWND_H_
+#pragma once
 
 #include "button.h"
 #include "form.h"
@@ -98,5 +97,3 @@ class cMainWnd : public akui::cForm {
 
     bool _processL;
 };
-
-#endif  //_MAINWND_H_
diff --git a/arm9/source/rominfownd.h b/arm9/source/rominfownd.h
index 3cdc6a0..54bb0d2 100644
--- a/arm9/source/rominfownd.h
+++ b/arm9/source/rominfownd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _ROMINFOWND_H_
-#define _ROMINFOWND_H_
+#pragma once
 
 #include <string>
 #include "dsrom.h"
@@ -104,5 +103,3 @@ class cRomInfoWnd : public akui::cForm {
 
     const std::vector<std::string>* _saves;
 };
-
-#endif  //_ROMINFOWND_H_
diff --git a/arm9/source/romlauncher.h b/arm9/source/romlauncher.h
index ebb8b3f..4e04961 100644
--- a/arm9/source/romlauncher.h
+++ b/arm9/source/romlauncher.h
@@ -16,8 +16,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __ROMLAUNCHER_H__
-#define __ROMLAUNCHER_H__
+#pragma once
 
 #include "dsrom.h"
 
@@ -31,5 +30,3 @@ enum TLaunchResult {
 
 TLaunchResult launchRom(const std::string& aFullPath, DSRomInfo& aRomInfo, bool aMenu);
 void autoLaunchRom(const std::string& aFullPath);
-
-#endif
diff --git a/arm9/source/romloader.h b/arm9/source/romloader.h
index a425f60..4e92f63 100644
--- a/arm9/source/romloader.h
+++ b/arm9/source/romloader.h
@@ -18,13 +18,10 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _ROMLOADER_H_
-#define _ROMLOADER_H_
+#pragma once
 
 #include <nds/ndstypes.h>
 #include <string>
 
 bool loadRom(const std::string& filename, const std::string& savename, u32 flags, long cheatOffset,
              size_t cheatSize);
-
-#endif  //_ROMLOADER_H_
diff --git a/arm9/source/savemngr.h b/arm9/source/savemngr.h
index 517c397..7d84254 100644
--- a/arm9/source/savemngr.h
+++ b/arm9/source/savemngr.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _SAVEMNGR_H_
-#define _SAVEMNGR_H_
+#pragma once
 
 #include <nds.h>
 #include <string>
@@ -239,5 +238,3 @@ typedef t_singleton<cSaveManager> SaveManager_s;
 inline cSaveManager& saveManager() {
     return SaveManager_s::instance();
 }
-
-#endif  //_SAVEMNGR_H_
diff --git a/arm9/source/settingwnd.h b/arm9/source/settingwnd.h
index f83ed3a..d925970 100644
--- a/arm9/source/settingwnd.h
+++ b/arm9/source/settingwnd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _SETTINGWND_H_
-#define _SETTINGWND_H_
+#pragma once
 
 #include <string>
 #include "form.h"
@@ -98,5 +97,3 @@ class cSettingWnd : public akui::cForm {
     akui::cFormDesc _renderDesc;
     akui::cButton _buttonY;
 };
-
-#endif  //_SETTINGWND_H_
diff --git a/arm9/source/singleton.h b/arm9/source/singleton.h
index 85a6696..621d4e3 100644
--- a/arm9/source/singleton.h
+++ b/arm9/source/singleton.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _SINGLETON_H_
-#define _SINGLETON_H_
+#pragma once
 #include <cstdlib>
 
 template <class T>
@@ -55,5 +54,3 @@ class t_singleton {
 
 template <class T>
 T* t_singleton<T>::_instance = NULL;
-
-#endif  //_AGL_SINGLETON_H_
diff --git a/arm9/source/sprite.h b/arm9/source/sprite.h
index 0c775a6..69be809 100644
--- a/arm9/source/sprite.h
+++ b/arm9/source/sprite.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _SPRITE_H_
-#define _SPRITE_H_
+#pragma once
 
 #include <nds.h>
 
@@ -87,5 +86,3 @@ class cSprite {
 //     void destroySprite( cSprite * pointer );
 //
 // };
-
-#endif  //_SPRITE_H_
diff --git a/arm9/source/sram.h b/arm9/source/sram.h
index 8cdf2d3..196f571 100644
--- a/arm9/source/sram.h
+++ b/arm9/source/sram.h
@@ -17,8 +17,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __SRAM_H__
-#define __SRAM_H__
+#pragma once
 
 #include <nds.h>
 #include <stdio.h>
@@ -52,5 +51,3 @@ class cSram {
     static void BlankSram(u16 aStartPage);
     static void NormalizeSize(sSaveInfo& anInfo);
 };
-
-#endif
diff --git a/arm9/source/startmenu.h b/arm9/source/startmenu.h
index f5e3217..776baff 100644
--- a/arm9/source/startmenu.h
+++ b/arm9/source/startmenu.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _STARTMENU_H_
-#define _STARTMENU_H_
+#pragma once
 
 #include "popmenu.h"
 
@@ -41,5 +40,3 @@ class cStartMenu : public akui::cPopMenu {
 
     cWindow& loadAppearance(const std::string& aFileName);
 };
-
-#endif  //_STARTMENU_H_
diff --git a/arm9/source/stringtool.h b/arm9/source/stringtool.h
index f37e8eb..08118fb 100644
--- a/arm9/source/stringtool.h
+++ b/arm9/source/stringtool.h
@@ -24,11 +24,8 @@ THE SOFTWARE.
 
 ---------------------------------------------------------------------------------*/
 
-#ifndef _STRINGTOOL_H_
-#define _STRINGTOOL_H_
+#pragma once
 
 #include <string>
 
 std::string formatString(const char* fmt, ...);
-
-#endif  //_STRINGTOOL_H_
diff --git a/arm9/source/systemfilenames.h b/arm9/source/systemfilenames.h
index 5736d0f..7e8b35c 100644
--- a/arm9/source/systemfilenames.h
+++ b/arm9/source/systemfilenames.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _SYSTEMFILENAMES_H_
-#define _SYSTEMFILENAMES_H_
+#pragma once
 
 #define SFN_SYSTEM_DIR "fat:/__rpg/"
 #define SFN_OFFICIAL_SAVELIST SFN_SYSTEM_DIR "savelist.bin"
@@ -67,5 +66,3 @@
 #define SFN_ICONS_DIRECTORY SFN_SYSTEM_DIR "icons/"
 
 #define SFN_CHEATS SFN_SYSTEM_DIR "cheats/usrcheat.dat"
-
-#endif  //_SYSTEMFILENAMES_H_
diff --git a/arm9/source/testcases.h b/arm9/source/testcases.h
index b23f567..7e5a0bb 100644
--- a/arm9/source/testcases.h
+++ b/arm9/source/testcases.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _TESTCASES_H_
-#define _TESTCASES_H_
+#pragma once
 
 int PrintFreeMem(void);
 
@@ -40,5 +39,3 @@ void testViolenceEEP512Kauto(u32 count);
 void testViolenceEEP8Mauto(u32 count);
 
 void testEEPReadStatus();
-
-#endif  //_TESTCASES_H_
diff --git a/arm9/source/timer.h b/arm9/source/timer.h
index 5f7cf7d..5fbb543 100644
--- a/arm9/source/timer.h
+++ b/arm9/source/timer.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _TIMER_H_
-#define _TIMER_H_
+#pragma once
 
 #include <nds.h>
 #include "singleton.h"
@@ -59,5 +58,3 @@ typedef t_singleton<cTimer> timer_s;
 inline cTimer& timer() {
     return timer_s::instance();
 }
-
-#endif  //_TIMER_H_
diff --git a/arm9/source/timetool.h b/arm9/source/timetool.h
index 7c43e3b..7b0e66c 100644
--- a/arm9/source/timetool.h
+++ b/arm9/source/timetool.h
@@ -24,9 +24,6 @@ THE SOFTWARE.
 
 ---------------------------------------------------------------------------------*/
 
-#ifndef _TIMETOOL_H_
-#define _TIMETOOL_H_
+#pragma once
 
 void waitMs(unsigned int requestTime);
-
-#endif  //_TIMETOOL_H_
diff --git a/arm9/source/ui/binaryfind.h b/arm9/source/ui/binaryfind.h
index 4c04403..e97fb41 100644
--- a/arm9/source/ui/binaryfind.h
+++ b/arm9/source/ui/binaryfind.h
@@ -16,8 +16,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __BINARYFIND_H__
-#define __BINARYFIND_H__
+#pragma once
 
 #include <algorithm>
 
@@ -33,5 +32,3 @@ Iterator binary_find(Iterator first, Iterator last, const T& value, Compare cmp)
         return last;
 }
 }  // namespace akui
-
-#endif
diff --git a/arm9/source/ui/bitmapdesc.h b/arm9/source/ui/bitmapdesc.h
index 3acf204..304dff2 100644
--- a/arm9/source/ui/bitmapdesc.h
+++ b/arm9/source/ui/bitmapdesc.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _BMPWINDOWDESC_H_
-#define _BMPWINDOWDESC_H_
+#pragma once
 
 #include <string>
 #include "bmp15.h"
@@ -52,5 +51,3 @@ class cBitmapDesc : public cRenderDesc {
 };
 
 }  // namespace akui
-
-#endif  //_BMPWINDOWDESC_H_
diff --git a/arm9/source/ui/button.h b/arm9/source/ui/button.h
index 4830c84..ded5c11 100644
--- a/arm9/source/ui/button.h
+++ b/arm9/source/ui/button.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_BUTTON_H_
-#define _AKUI_BUTTON_H_
+#pragma once
 
 #include "bmp15.h"
 #include "rectangle.h"
@@ -112,5 +111,3 @@ class cButtonDesc : public cRenderDesc {
     COLOR _textColor;
 };
 }  // namespace akui
-
-#endif  //_AKUI_BUTTON_H_
diff --git a/arm9/source/ui/form.h b/arm9/source/ui/form.h
index 6eef128..f112c61 100644
--- a/arm9/source/ui/form.h
+++ b/arm9/source/ui/form.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_FORM_H_
-#define _AKUI_FORM_H_
+#pragma once
 
 #include <list>
 #include "bitmapdesc.h"
@@ -77,5 +76,3 @@ class cForm : public cWindow {
 };
 
 }  // namespace akui
-
-#endif  //_AKUI_FORM_H_
diff --git a/arm9/source/ui/formdesc.h b/arm9/source/ui/formdesc.h
index c7c628b..bcdfbbd 100644
--- a/arm9/source/ui/formdesc.h
+++ b/arm9/source/ui/formdesc.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _FORMDESC_H_
-#define _FORMDESC_H_
+#pragma once
 
 #include <string>
 #include "bmp15.h"
@@ -53,5 +52,3 @@ class cFormDesc : public cRenderDesc {
 };
 
 }  // namespace akui
-
-#endif  //_FORMDESC_H_
diff --git a/arm9/source/ui/keymessage.h b/arm9/source/ui/keymessage.h
index f0f8834..b43c987 100644
--- a/arm9/source/ui/keymessage.h
+++ b/arm9/source/ui/keymessage.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_KEYMESSAGE_H_
-#define _AKUI_KEYMESSAGE_H_
+#pragma once
 
 #include "message.h"
 
@@ -91,5 +90,3 @@ class cKeyMessage : public cMessage {
 // const unsigned char cKeyMessage::UI_KEY_LID            =    14; //!< Lid state.
 
 }  // namespace akui
-
-#endif  //_AKUI_cKeyMessage_H_
diff --git a/arm9/source/ui/listview.h b/arm9/source/ui/listview.h
index b4cbda7..6906128 100644
--- a/arm9/source/ui/listview.h
+++ b/arm9/source/ui/listview.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_LISTVIEW_H_
-#define _AKUI_LISTVIEW_H_
+#pragma once
 
 #include <string>
 #include <vector>
@@ -181,4 +180,3 @@ class cListView : public cWindow {
 };
 
 }  // namespace akui
-#endif  //_LISTVIEW_H_
diff --git a/arm9/source/ui/message.h b/arm9/source/ui/message.h
index 120d4ed..f72ac75 100644
--- a/arm9/source/ui/message.h
+++ b/arm9/source/ui/message.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_MESSAGE_H_
-#define _AKUI_MESSAGE_H_
+#pragma once
 
 namespace akui {
 
@@ -67,5 +66,3 @@ class cMessage {
 };
 
 }  // namespace akui
-
-#endif  //_AKUI_MESSAGE_H_
diff --git a/arm9/source/ui/msgbox.h b/arm9/source/ui/msgbox.h
index 167bbca..b8f9002 100644
--- a/arm9/source/ui/msgbox.h
+++ b/arm9/source/ui/msgbox.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_MESSAGEBOX_H_
-#define _AKUI_MESSAGEBOX_H_
+#pragma once
 
 #include "button.h"
 #include "form.h"
@@ -90,5 +89,3 @@ class cMessageBox : public cForm {
 u32 messageBox(cWindow* parent, const std::string& title, const std::string& msg, u32 style);
 
 }  // namespace akui
-
-#endif  //_MESSAGEBOX_H_
diff --git a/arm9/source/ui/point.h b/arm9/source/ui/point.h
index 73cd2e3..ae57c55 100644
--- a/arm9/source/ui/point.h
+++ b/arm9/source/ui/point.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_POINT_H_
-#define _AKUI_POINT_H_
+#pragma once
 
 #include <algorithm>
 
@@ -72,5 +71,3 @@ typedef t_point<float> cPointf;
 typedef t_point<int> cSize;
 
 }  // namespace akui
-
-#endif  //_AKUI_POINT_H_
diff --git a/arm9/source/ui/popmenu.h b/arm9/source/ui/popmenu.h
index 158c508..ebbc378 100644
--- a/arm9/source/ui/popmenu.h
+++ b/arm9/source/ui/popmenu.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _POPMENU_H_
-#define _POPMENU_H_
+#pragma once
 
 #include <nds.h>
 #include <vector>
@@ -86,4 +85,3 @@ class cPopMenu : public cWindow {
 };
 
 }  // namespace akui
-#endif  //_POPMENU_H_
diff --git a/arm9/source/ui/progressbar.h b/arm9/source/ui/progressbar.h
index 239a66a..e4136cd 100644
--- a/arm9/source/ui/progressbar.h
+++ b/arm9/source/ui/progressbar.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _PROGRESSBAR_H_
-#define _PROGRESSBAR_H_
+#pragma once
 
 #include "bmp15.h"
 #include "ui.h"
@@ -46,5 +45,3 @@ class cProgressBar : public cWindow {
 };
 
 }  // namespace akui
-
-#endif  //_PROGRESSBAR_H_
diff --git a/arm9/source/ui/progresswnd.h b/arm9/source/ui/progresswnd.h
index b12d67a..8fd4ff3 100644
--- a/arm9/source/ui/progresswnd.h
+++ b/arm9/source/ui/progresswnd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _PROGRESSWND_H_
-#define _PROGRESSWND_H_
+#pragma once
 
 #include "progressbar.h"
 #include "singleton.h"
@@ -64,5 +63,3 @@ typedef t_singleton<akui::cProgressWnd> progressWnd_s;
 inline akui::cProgressWnd& progressWnd() {
     return progressWnd_s::instance();
 }
-
-#endif  //_PROGRESSWND_H_
diff --git a/arm9/source/ui/rectangle.h b/arm9/source/ui/rectangle.h
index 1ad2d1d..0718fba 100644
--- a/arm9/source/ui/rectangle.h
+++ b/arm9/source/ui/rectangle.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_RECTANGLE_H_
-#define _AKUI_RECTANGLE_H_
+#pragma once
 
 #include "point.h"
 
@@ -150,5 +149,3 @@ class cRect {
 
 // *************************************************************************************************
 }  // namespace akui
-
-#endif  //_AKUI_RECTANGLE_H_
diff --git a/arm9/source/ui/renderdesc.h b/arm9/source/ui/renderdesc.h
index 7e70cd7..e2dda9a 100644
--- a/arm9/source/ui/renderdesc.h
+++ b/arm9/source/ui/renderdesc.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_RENDERDESC_H_
-#define _AKUI_RENDERDESC_H_
+#pragma once
 
 #include "gdi.h"
 #include "rectangle.h"
@@ -46,4 +45,3 @@ class cRenderDesc {
 };
 
 }  // namespace akui
-#endif  //_AKUI_RENDERDESC_H_
diff --git a/arm9/source/ui/sigslot.h b/arm9/source/ui/sigslot.h
index e553f7e..47e46c2 100644
--- a/arm9/source/ui/sigslot.h
+++ b/arm9/source/ui/sigslot.h
@@ -22,8 +22,7 @@
 //  The original version of this code was written and placed in the public domain by Sarah Thompson
 // See http://sigslot.sourceforge.net/
 // __________________________________________________________________________________________________
-#ifndef SIGSLOT__H
-#define SIGSLOT__H
+#pragma once
 
 #include <list>
 #include <set>
@@ -465,5 +464,3 @@ class Signal1 : public BasicSignal1<Type1> {
 };
 
 }  // namespace akui
-
-#endif  // SIGSLOT__H
diff --git a/arm9/source/ui/spinbox.h b/arm9/source/ui/spinbox.h
index 7e2096b..cffa94a 100644
--- a/arm9/source/ui/spinbox.h
+++ b/arm9/source/ui/spinbox.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _SPINBOX_H_
-#define _SPINBOX_H_
+#pragma once
 
 #include <string>
 #include <vector>
@@ -80,5 +79,3 @@ class cSpinBox : public cForm {
 };
 
 }  // namespace akui
-
-#endif  //_SPINBOX_H_
diff --git a/arm9/source/ui/statictext.h b/arm9/source/ui/statictext.h
index 19a25b3..f8dd03d 100644
--- a/arm9/source/ui/statictext.h
+++ b/arm9/source/ui/statictext.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _STATICTEXT_H_
-#define _STATICTEXT_H_
+#pragma once
 
 #include "bmp15.h"
 #include "window.h"
@@ -44,5 +43,3 @@ class cStaticText : public cWindow {
 };
 
 }  // namespace akui
-
-#endif  //_STATICTEXT_H_
diff --git a/arm9/source/ui/touchmessage.h b/arm9/source/ui/touchmessage.h
index 5f807f5..f987411 100644
--- a/arm9/source/ui/touchmessage.h
+++ b/arm9/source/ui/touchmessage.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_TOUCHMESSAGE_H_
-#define _AKUI_TOUCHMESSAGE_H_
+#pragma once
 
 #include "message.h"
 
@@ -58,5 +57,3 @@ class cTouchMessage : public cMessage {
 };
 
 }  // namespace akui
-
-#endif  //_AKUI_TOUCHMESSAGE_H_
diff --git a/arm9/source/ui/ui.h b/arm9/source/ui/ui.h
index e47462f..8a9879c 100644
--- a/arm9/source/ui/ui.h
+++ b/arm9/source/ui/ui.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_H_
-#define _AKUI_H_
+#pragma once
 
 #include <nds.h>
 #include "../../share/memtool.h"
@@ -60,5 +59,3 @@
 #include "globalsettings.h"
 #include "systemfilenames.h"
 #include "uisettings.h"
-
-#endif  //_AKUI_H_
diff --git a/arm9/source/ui/uisettings.h b/arm9/source/ui/uisettings.h
index 1a5a0ba..c5090a4 100644
--- a/arm9/source/ui/uisettings.h
+++ b/arm9/source/ui/uisettings.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _UISETTINGS_H_
-#define _UISETTINGS_H_
+#pragma once
 
 #include <nds.h>
 #include "gdi.h"
@@ -65,5 +64,3 @@ inline cUISettings& uiSettings() {
 inline cUISettings& uis() {
     return uiSettings_s::instance();
 }
-
-#endif  //_UISETTINGS_H_
diff --git a/arm9/source/ui/window.h b/arm9/source/ui/window.h
index ee93e30..3c4f2df 100644
--- a/arm9/source/ui/window.h
+++ b/arm9/source/ui/window.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_WINDOW_H_
-#define _AKUI_WINDOW_H_
+#pragma once
 
 #include <string>
 #include "dbgtool.h"
@@ -183,4 +182,3 @@ class cWindow : public SlotHolder {
 };
 
 }  // namespace akui
-#endif  //_AKUI_WINDOW_H_
diff --git a/arm9/source/ui/windowmanager.h b/arm9/source/ui/windowmanager.h
index 1396f94..45418ef 100644
--- a/arm9/source/ui/windowmanager.h
+++ b/arm9/source/ui/windowmanager.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _AKUI_WINDOWMANAGER_H_
-#define _AKUI_WINDOWMANAGER_H_
+#pragma once
 
 #include <list>
 #include <string>
@@ -72,5 +71,3 @@ inline cWindowManager& windowManager(void) {
     return cWindowManager_s::instance();
 }
 }  // namespace akui
-
-#endif  //_AKUI_WINDOWMANAGER_H_
diff --git a/arm9/source/unicode.h b/arm9/source/unicode.h
index b231aaf..3bbb181 100644
--- a/arm9/source/unicode.h
+++ b/arm9/source/unicode.h
@@ -18,13 +18,10 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _UNICODE_H_
-#define _UNICODE_H_
+#pragma once
 
 #include <nds.h>
 #include <string>
 
 std::string unicode_to_local_string(const u16* unicode_string, size_t length,
                                     bool* defCharUsed = NULL);
-
-#endif  //_UNICODE_H_
diff --git a/arm9/source/userinput.h b/arm9/source/userinput.h
index 3e81a84..c503f31 100644
--- a/arm9/source/userinput.h
+++ b/arm9/source/userinput.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __USERINPUT_H__
-#define __USERINPUT_H__
+#pragma once
 
 #include <nds.h>
 
@@ -53,5 +52,3 @@ INPUT& getInput();
 u32 getInputIdleMs();
 void resetInputIdle(void);
 bool processInput(INPUT& inputs);
-
-#endif  //_INPUT_H_
diff --git a/arm9/source/userwnd.h b/arm9/source/userwnd.h
index 3670ce7..c2f7520 100644
--- a/arm9/source/userwnd.h
+++ b/arm9/source/userwnd.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _USERWINDOW_H_
-#define _USERWINDOW_H_
+#pragma once
 
 #include "bmp15.h"
 #include "datetime.h"
@@ -63,5 +62,3 @@ typedef t_singleton<cUserWindow> UserWindow_s;
 inline cUserWindow& userWindow() {
     return UserWindow_s::instance();
 }
-
-#endif  //_UserWindow_H_
diff --git a/arm9/source/zoomingicon.h b/arm9/source/zoomingicon.h
index c1990c1..b3dce04 100644
--- a/arm9/source/zoomingicon.h
+++ b/arm9/source/zoomingicon.h
@@ -18,8 +18,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef _ZOOMINGICON_H_
-#define _ZOOMINGICON_H_
+#pragma once
 
 #include <nds.h>
 #include "animation.h"
@@ -57,5 +56,3 @@ class cZoomingIcon : public cAnimation {
     float _scale;
     bool _needUpdateBuffer;
 };
-
-#endif  //_ZOOMINGICON_H_
diff --git a/share/fifotool.h b/share/fifotool.h
index 9f7a060..c442efb 100644
--- a/share/fifotool.h
+++ b/share/fifotool.h
@@ -16,8 +16,7 @@
     along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef __FIFOTOOL_H__
-#define __FIFOTOOL_H__
+#pragma once
 
 #define MENU_MSG_GBA 1
 #define MENU_MSG_ARM7_REBOOT 2
@@ -30,5 +29,3 @@
 #define MENU_MSG_BRIGHTNESS_SET2 10
 #define MENU_MSG_BRIGHTNESS_SET3 11
 #define MENU_MSG_SHUTDOWN 12
-
-#endif
diff --git a/share/memtool.h b/share/memtool.h
index 3a7ff19..e2f0a20 100644
--- a/share/memtool.h
+++ b/share/memtool.h
@@ -24,8 +24,7 @@ THE SOFTWARE.
 
 ---------------------------------------------------------------------------------*/
 
-#ifndef _MEMTOOL_H_
-#define _MEMTOOL_H_
+#pragma once
 
 inline void fillMemory(void* addr, u32 count, u32 value) {
     swiFastCopy((void*)(&value), addr, (count >> 2) | COPY_MODE_WORD | COPY_MODE_FILL);
@@ -34,5 +33,3 @@ inline void fillMemory(void* addr, u32 count, u32 value) {
 inline void zeroMemory(void* addr, u32 count) {
     fillMemory(addr, count, 0);
 }
-
-#endif  //_MEMTOOL_H_