Use C++ style comments consistently in SDL source code

Implemented using this script:

find . -type f -exec sed -i'' -e 's,/\* *\([^*]*\)\*/ *$,// \1,' -e 's, \+$,,' {} \;
git checkout \
    core/linux/SDL_evdev_kbd_default_keymap.h \
    events/imKStoUCS.* \
    hidapi \
    joystick/controller_type.c \
    joystick/controller_type.h \
    joystick/hidapi/steam/controller_constants.h \
    joystick/hidapi/steam/controller_structs.h \
    joystick/SDL_gamepad_db.h \
    libm \
    render/*/*Shader*.h \
    render/vitagxm/SDL_render_vita_gxm_shaders.h \
    render/metal/SDL_shaders_metal_*.h \
    stdlib/SDL_malloc.c \
    stdlib/SDL_qsort.c \
    stdlib/SDL_strtokr.c \
    test/ \
    video/directx/SDL_d3d12_xbox_cmacros.h \
    video/directx/d3d12.h \
    video/directx/d3d12sdklayers.h \
    video/khronos \
    video/x11/edid-parse.c \
    video/x11/xsettings-client.* \
    video/yuv2rgb
sed -i'' -e 's,/\* *\([^*]*\)\*/ *$,// \1,' -e 's, \+$,,' hidapi/SDL_hidapi.c

src/storage/SDL_storage.c

@@ -24,13 +24,13 @@
 #include "SDL_sysstorage.h"
 #include "../filesystem/SDL_sysfilesystem.h"
 
-/* Available title storage drivers */
+// Available title storage drivers
 static TitleStorageBootStrap *titlebootstrap[] = {
     &GENERIC_titlebootstrap,
     NULL
 };
 
-/* Available user storage drivers */
+// Available user storage drivers
 static UserStorageBootStrap *userbootstrap[] = {
 #ifdef SDL_STORAGE_STEAM
     &STEAM_userbootstrap,
@@ -61,7 +61,7 @@ SDL_Storage *SDL_OpenTitleStorage(const char *override, SDL_PropertiesID props)
     SDL_Storage *storage = NULL;
     int i = 0;
 
-    /* Select the proper storage driver */
+    // Select the proper storage driver
     const char *driver_name = SDL_GetHint(SDL_HINT_STORAGE_TITLE_DRIVER);
     if (driver_name && *driver_name != 0) {
         const char *driver_attempt = driver_name;
@@ -103,7 +103,7 @@ SDL_Storage *SDL_OpenUserStorage(const char *org, const char *app, SDL_Propertie
     SDL_Storage *storage = NULL;
     int i = 0;
 
-    /* Select the proper storage driver */
+    // Select the proper storage driver
     const char *driver_name = SDL_GetHint(SDL_HINT_STORAGE_USER_DRIVER);
     if (driver_name && *driver_name != 0) {
         const char *driver_attempt = driver_name;

src/storage/SDL_sysstorage.h

@@ -38,14 +38,14 @@ typedef struct UserStorageBootStrap
     SDL_Storage *(*create)(const char*, const char*, SDL_PropertiesID);
 } UserStorageBootStrap;
 
-/* Not all of these are available in a given build. Use #ifdefs, etc. */
+// Not all of these are available in a given build. Use #ifdefs, etc.
 
 extern TitleStorageBootStrap GENERIC_titlebootstrap;
-/* Steam does not have title storage APIs */
+// Steam does not have title storage APIs
 
 extern UserStorageBootStrap GENERIC_userbootstrap;
 extern UserStorageBootStrap STEAM_userbootstrap;
 
 extern SDL_Storage *GENERIC_OpenFileStorage(const char *path);
 
-#endif /* SDL_sysstorage_h_ */
+#endif // SDL_sysstorage_h_

src/storage/generic/SDL_genericstorage.c

@@ -82,7 +82,7 @@ static int GENERIC_ReadStorageFile(void *userdata, const char *path, void *desti
     if (fullpath) {
         SDL_IOStream *stream = SDL_IOFromFile(fullpath, "rb");
         if (stream) {
-            /* FIXME: Should SDL_ReadIO use u64 now...? */
+            // FIXME: Should SDL_ReadIO use u64 now...?
             if (SDL_ReadIO(stream, destination, (size_t)length) == length) {
                 result = 0;
             }
@@ -95,7 +95,7 @@ static int GENERIC_ReadStorageFile(void *userdata, const char *path, void *desti
 
 static int GENERIC_WriteStorageFile(void *userdata, const char *path, const void *source, Uint64 length)
 {
-    /* TODO: Recursively create subdirectories with SDL_CreateDirectory */
+    // TODO: Recursively create subdirectories with SDL_CreateDirectory
     int result = -1;
 
     if (length > SDL_SIZE_MAX) {
@@ -107,7 +107,7 @@ static int GENERIC_WriteStorageFile(void *userdata, const char *path, const void
         SDL_IOStream *stream = SDL_IOFromFile(fullpath, "wb");
 
         if (stream) {
-            /* FIXME: Should SDL_WriteIO use u64 now...? */
+            // FIXME: Should SDL_WriteIO use u64 now...?
             if (SDL_WriteIO(stream, source, (size_t)length) == length) {
                 result = 0;
             }
@@ -120,7 +120,7 @@ static int GENERIC_WriteStorageFile(void *userdata, const char *path, const void
 
 static int GENERIC_CreateStorageDirectory(void *userdata, const char *path)
 {
-    /* TODO: Recursively create subdirectories with SDL_CreateDirectory */
+    // TODO: Recursively create subdirectories with SDL_CreateDirectory
     int result = -1;
 
     char *fullpath = GENERIC_INTERNAL_CreateFullPath((char *)userdata, path);
@@ -177,22 +177,22 @@ static int GENERIC_CopyStorageFile(void *userdata, const char *oldpath, const ch
 
 static Uint64 GENERIC_GetStorageSpaceRemaining(void *userdata)
 {
-    /* TODO: There's totally a way to query a folder root's quota... */
+    // TODO: There's totally a way to query a folder root's quota...
     return SDL_MAX_UINT64;
 }
 
 static const SDL_StorageInterface GENERIC_title_iface = {
     GENERIC_CloseStorage,
-    NULL,   /* ready */
+    NULL,   // ready
     GENERIC_EnumerateStorageDirectory,
     GENERIC_GetStoragePathInfo,
     GENERIC_ReadStorageFile,
-    NULL,   /* write_file */
-    NULL,   /* mkdir */
-    NULL,   /* remove */
-    NULL,   /* rename */
-    NULL,   /* copy */
-    NULL    /* space_remaining */
+    NULL,   // write_file
+    NULL,   // mkdir
+    NULL,   // remove
+    NULL,   // rename
+    NULL,   // copy
+    NULL    // space_remaining
 };
 
 static SDL_Storage *GENERIC_Title_Create(const char *override, SDL_PropertiesID props)
@@ -225,7 +225,7 @@ TitleStorageBootStrap GENERIC_titlebootstrap = {
 
 static const SDL_StorageInterface GENERIC_user_iface = {
     GENERIC_CloseStorage,
-    NULL,   /* ready */
+    NULL,   // ready
     GENERIC_EnumerateStorageDirectory,
     GENERIC_GetStoragePathInfo,
     GENERIC_ReadStorageFile,
@@ -260,7 +260,7 @@ UserStorageBootStrap GENERIC_userbootstrap = {
 
 static const SDL_StorageInterface GENERIC_file_iface = {
     GENERIC_CloseStorage,
-    NULL,   /* ready */
+    NULL,   // ready
     GENERIC_EnumerateStorageDirectory,
     GENERIC_GetStoragePathInfo,
     GENERIC_ReadStorageFile,

src/storage/steam/SDL_steamstorage.c

@@ -23,7 +23,7 @@
 
 #include "../SDL_sysstorage.h"
 
-#include <stdbool.h> /* Needed by Steamworks */
+#include <stdbool.h> // Needed by Steamworks
 
 // !!! FIXME: Async API can use SteamRemoteStorage_ReadFileAsync
 // !!! FIXME: Async API can use SteamRemoteStorage_WriteFileAsync
@@ -133,14 +133,14 @@ static Uint64 STEAM_GetStorageSpaceRemaining(void *userdata)
 static const SDL_StorageInterface STEAM_user_iface = {
     STEAM_CloseStorage,
     STEAM_StorageReady,
-    NULL,   /* enumerate */
+    NULL,   // enumerate
     STEAM_GetStoragePathInfo,
     STEAM_ReadStorageFile,
     STEAM_WriteStorageFile,
-    NULL,   /* mkdir */
-    NULL,   /* remove */
-    NULL,   /* rename */
-    NULL,   /* copy */
+    NULL,   // mkdir
+    NULL,   // remove
+    NULL,   // rename
+    NULL,   // copy
     STEAM_GetStorageSpaceRemaining
 };