3 files changed, 8 insertions, 25 deletions
diff --git a/config.h b/config.h
index 4e2f859..4bc8215 100644
--- a/config.h
+++ b/config.h
@@ -92,8 +92,8 @@ static key keys[] = {
     {  MOD1|ShiftMask,   XK_h,          switch_horizontal, {NULL} },
     {  MOD1|ShiftMask,   XK_g,          switch_grid,       {NULL} },
     {  MOD1|ShiftMask,   XK_m,          switch_fullscreen, {NULL} },
-    {  MOD1|ShiftMask,   XK_Right,      next_desktop,      {NULL} },
-    {  MOD1|ShiftMask,   XK_Left,       prev_desktop,      {NULL} },
+    {  MOD1|ShiftMask,   XK_Right,      next_desktop,      {.i = +1} },
+    {  MOD1|ShiftMask,   XK_Left,       next_desktop,      {.i = -1} },
     /*
      * {  MOD1|ControlMask, XK_r,          spawn,             {.com = rebootcmd}   },
      * {  MOD1|ControlMask, XK_s,          spawn,             {.com = shutdowncmd} },
diff --git a/config.h.def b/config.h.def
index 7bd987b..b85da23 100644
--- a/config.h.def
+++ b/config.h.def
@@ -103,8 +103,8 @@ static key keys[] = {
     {  MOD1|ControlMask, XK_r,          spawn,             {.com = rebootcmd}},
     {  MOD1|ControlMask, XK_s,          spawn,             {.com = shutdowncmd}},
 // Window key + shortcut
-    {  MOD4,             XK_Right,      next_desktop,      {NULL}},
-    {  MOD4,             XK_Left,       prev_desktop,      {NULL}},
+    {  MOD4,             XK_Right,      next_desktop,      {.i = +1}},
+    {  MOD4,             XK_Left,       next_desktop,      {.i = -1}},
     {  MOD4,             XK_e,          spawn,             {.com = mailcmd}},
     {  MOD4,             XK_f,          spawn,             {.com = firefoxcmd}},
     {  MOD4,             XK_w,          spawn,             {.com = webcmd}},
diff --git a/dminiwm.c b/dminiwm.c
index f952a7d..05de381 100644
--- a/dminiwm.c
+++ b/dminiwm.c
@@ -112,9 +112,8 @@ static void kill_client();
 static void maprequest(XEvent *e);
 static void move_down();
 static void move_up();
-static void next_desktop();
+static void next_desktop(const Arg arg);
 static void next_win();
-static void prev_desktop();
 static void prev_win();
 static void quit();
 static void remove_window(Window w);
@@ -385,25 +384,9 @@ void toggle_desktop() {
     change_desktop(a);
 }
 
-void next_desktop() {
-    int tmp = current_desktop;
-    if(tmp == TABLENGTH(desktops)-1)
-        tmp = 0;
-    else
-        tmp++;
-
-    Arg a = {.i = tmp};
-    change_desktop(a);
-}
-
-void prev_desktop() {
-    int tmp = current_desktop;
-    if(tmp == 0)
-        tmp = TABLENGTH(desktops)-1;
-    else
-        tmp--;
-
-    Arg a = {.i = tmp};
+void next_desktop(const Arg arg) {
+    int ndesktops = TABLENGTH(desktops);
+    Arg a = {.i = (current_desktop + ndesktops + arg.i) % ndesktops};
     change_desktop(a);
 }