URI: 
       applied Gottox bitmask + void *arg patch - dwm - dynamic window manager
  HTML git clone https://git.parazyd.org/dwm
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit 39d1ecd5b0b22dbd61ba5206c9f08a187f911b2a
   DIR parent 103fb58a445bc849acdd32c694f013846ab863ee
  HTML Author: Anselm R Garbe <garbeam@gmail.com>
       Date:   Thu, 22 May 2008 11:04:19 +0100
       
       applied Gottox bitmask + void *arg patch
       Diffstat:
         M config.def.h                        |      87 ++++++++++++++++---------------
         M config.mk                           |       8 ++++----
         M dwm.c                               |     211 +++++++++++++------------------
       
       3 files changed, 138 insertions(+), 168 deletions(-)
       ---
   DIR diff --git a/config.def.h b/config.def.h
       @@ -18,7 +18,8 @@ const char tags[][MAXTAGLEN] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
        
        Rule rules[] = {
                /* class      instance    title       tags ref      isfloating */
       -        { "Gimp",     NULL,       NULL,       NULL,         True },
       +        { "Gimp",     NULL,       NULL,       0,            True },
       +        { "Firefox",  NULL,       NULL,       1 << 8,       True },
        };
        
        /* layout(s) */
       @@ -35,55 +36,55 @@ Layout layouts[] = {
        #define MODKEY Mod1Mask
        Key keys[] = {
                /* modifier                     key        function        argument */
       -        { MODKEY,                       XK_p,      spawn,          "exec dmenu_run -fn '"FONT"' -nb '"NORMBGCOLOR"' -nf '"NORMFGCOLOR"' -sb '"SELBGCOLOR"' -sf '"SELFGCOLOR"'" },
       -        { MODKEY|ShiftMask,             XK_Return, spawn,          "exec uxterm" },
       +        { MODKEY,                       XK_p,      spawn,          (char *)"exec dmenu_run -fn '"FONT"' -nb '"NORMBGCOLOR"' -nf '"NORMFGCOLOR"' -sb '"SELBGCOLOR"' -sf '"SELFGCOLOR"'" },
       +        { MODKEY|ShiftMask,             XK_Return, spawn,          (char *)"exec uxterm" },
                { MODKEY,                       XK_b,      togglebar,      NULL },
                { MODKEY,                       XK_j,      focusnext,      NULL },
                { MODKEY,                       XK_k,      focusprev,      NULL },
       -        { MODKEY,                       XK_h,      setmfact,       "-0.05" },
       -        { MODKEY,                       XK_l,      setmfact,       "+0.05" },
       +        { MODKEY,                       XK_h,      setmfact,       (double[]){+0.05} },
       +        { MODKEY,                       XK_l,      setmfact,       (double[]){-0.05} },
                { MODKEY,                       XK_Return, zoom,           NULL },
                { MODKEY,                       XK_Tab,    viewprevtag,    NULL },
                { MODKEY|ShiftMask,             XK_c,      killclient,     NULL },
                { MODKEY,                       XK_space,  togglelayout,   NULL },
                { MODKEY|ShiftMask,             XK_space,  togglefloating, NULL },
       -        { MODKEY,                       XK_0,      view,           NULL },
       -        { MODKEY,                       XK_1,      view,           tags[0] },
       -        { MODKEY,                       XK_2,      view,           tags[1] },
       -        { MODKEY,                       XK_3,      view,           tags[2] },
       -        { MODKEY,                       XK_4,      view,           tags[3] },
       -        { MODKEY,                       XK_5,      view,           tags[4] },
       -        { MODKEY,                       XK_6,      view,           tags[5] },
       -        { MODKEY,                       XK_7,      view,           tags[6] },
       -        { MODKEY,                       XK_8,      view,           tags[7] },
       -        { MODKEY,                       XK_9,      view,           tags[8] },
       -        { MODKEY|ControlMask,           XK_1,      toggleview,     tags[0] },
       -        { MODKEY|ControlMask,           XK_2,      toggleview,     tags[1] },
       -        { MODKEY|ControlMask,           XK_3,      toggleview,     tags[2] },
       -        { MODKEY|ControlMask,           XK_4,      toggleview,     tags[3] },
       -        { MODKEY|ControlMask,           XK_5,      toggleview,     tags[4] },
       -        { MODKEY|ControlMask,           XK_6,      toggleview,     tags[5] },
       -        { MODKEY|ControlMask,           XK_7,      toggleview,     tags[6] },
       -        { MODKEY|ControlMask,           XK_8,      toggleview,     tags[7] },
       -        { MODKEY|ControlMask,           XK_9,      toggleview,     tags[8] },
       -        { MODKEY|ShiftMask,             XK_0,      tag,            NULL },
       -        { MODKEY|ShiftMask,             XK_1,      tag,            tags[0] },
       -        { MODKEY|ShiftMask,             XK_2,      tag,            tags[1] },
       -        { MODKEY|ShiftMask,             XK_3,      tag,            tags[2] },
       -        { MODKEY|ShiftMask,             XK_4,      tag,            tags[3] },
       -        { MODKEY|ShiftMask,             XK_5,      tag,            tags[4] },
       -        { MODKEY|ShiftMask,             XK_6,      tag,            tags[5] },
       -        { MODKEY|ShiftMask,             XK_7,      tag,            tags[6] },
       -        { MODKEY|ShiftMask,             XK_8,      tag,            tags[7] },
       -        { MODKEY|ShiftMask,             XK_9,      tag,            tags[8] },
       -        { MODKEY|ControlMask|ShiftMask, XK_1,      toggletag,      tags[0] },
       -        { MODKEY|ControlMask|ShiftMask, XK_2,      toggletag,      tags[1] },
       -        { MODKEY|ControlMask|ShiftMask, XK_3,      toggletag,      tags[2] },
       -        { MODKEY|ControlMask|ShiftMask, XK_4,      toggletag,      tags[3] },
       -        { MODKEY|ControlMask|ShiftMask, XK_5,      toggletag,      tags[4] },
       -        { MODKEY|ControlMask|ShiftMask, XK_6,      toggletag,      tags[5] },
       -        { MODKEY|ControlMask|ShiftMask, XK_7,      toggletag,      tags[6] },
       -        { MODKEY|ControlMask|ShiftMask, XK_8,      toggletag,      tags[7] },
       -        { MODKEY|ControlMask|ShiftMask, XK_9,      toggletag,      tags[8] },
       +        { MODKEY,                       XK_0,      view,           (int[]){ ~0 } },
       +        { MODKEY,                       XK_1,      view,           (int[]){ 1 << 0 } },
       +        { MODKEY,                       XK_2,      view,           (int[]){ 1 << 1 } },
       +        { MODKEY,                       XK_3,      view,           (int[]){ 1 << 2 } },
       +        { MODKEY,                       XK_4,      view,           (int[]){ 1 << 3 } },
       +        { MODKEY,                       XK_5,      view,           (int[]){ 1 << 4 } },
       +        { MODKEY,                       XK_6,      view,           (int[]){ 1 << 5 } },
       +        { MODKEY,                       XK_7,      view,           (int[]){ 1 << 6 } },
       +        { MODKEY,                       XK_8,      view,           (int[]){ 1 << 7 } },
       +        { MODKEY,                       XK_9,      view,           (int[]){ 1 << 8 } },
       +        { MODKEY|ControlMask,           XK_1,      toggleview,     (int[]){ 1 << 0 } },
       +        { MODKEY|ControlMask,           XK_2,      toggleview,     (int[]){ 1 << 1 } },
       +        { MODKEY|ControlMask,           XK_3,      toggleview,     (int[]){ 1 << 2 } },
       +        { MODKEY|ControlMask,           XK_4,      toggleview,     (int[]){ 1 << 3 } },
       +        { MODKEY|ControlMask,           XK_5,      toggleview,     (int[]){ 1 << 4 } },
       +        { MODKEY|ControlMask,           XK_6,      toggleview,     (int[]){ 1 << 5 } },
       +        { MODKEY|ControlMask,           XK_7,      toggleview,     (int[]){ 1 << 6 } },
       +        { MODKEY|ControlMask,           XK_8,      toggleview,     (int[]){ 1 << 7 } },
       +        { MODKEY|ControlMask,           XK_9,      toggleview,     (int[]){ 1 << 8 } },
       +        { MODKEY|ShiftMask,             XK_0,      tag,            (int[]){ ~0 } },
       +        { MODKEY|ShiftMask,             XK_1,      tag,            (int[]){ 1 << 0 } },
       +        { MODKEY|ShiftMask,             XK_2,      tag,            (int[]){ 1 << 1 } },
       +        { MODKEY|ShiftMask,             XK_3,      tag,            (int[]){ 1 << 2 } },
       +        { MODKEY|ShiftMask,             XK_4,      tag,            (int[]){ 1 << 3 } },
       +        { MODKEY|ShiftMask,             XK_5,      tag,            (int[]){ 1 << 4 } },
       +        { MODKEY|ShiftMask,             XK_6,      tag,            (int[]){ 1 << 5 } },
       +        { MODKEY|ShiftMask,             XK_7,      tag,            (int[]){ 1 << 6 } },
       +        { MODKEY|ShiftMask,             XK_8,      tag,            (int[]){ 1 << 7 } },
       +        { MODKEY|ShiftMask,             XK_9,      tag,            (int[]){ 1 << 8 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_1,      toggletag,      (int[]){ 1 << 0 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_2,      toggletag,      (int[]){ 1 << 1 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_3,      toggletag,      (int[]){ 1 << 2 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_4,      toggletag,      (int[]){ 1 << 3 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_5,      toggletag,      (int[]){ 1 << 4 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_6,      toggletag,      (int[]){ 1 << 5 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_7,      toggletag,      (int[]){ 1 << 6 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_8,      toggletag,      (int[]){ 1 << 7 } },
       +        { MODKEY|ControlMask|ShiftMask, XK_9,      toggletag,      (int[]){ 1 << 8 } },
                { MODKEY|ShiftMask,             XK_q,      quit,           NULL },
        };
   DIR diff --git a/config.mk b/config.mk
       @@ -20,10 +20,10 @@ LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 ${XINERAMALIBS}
        
        # flags
        CPPFLAGS = -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
       -CFLAGS = -Os ${INCS} ${CPPFLAGS}
       -LDFLAGS = -s ${LIBS}
       -#CFLAGS = -g -std=c99 -pedantic -Wall -O2 ${INCS} ${CPPFLAGS}
       -#LDFLAGS = -g ${LIBS}
       +#CFLAGS = -Os ${INCS} ${CPPFLAGS}
       +#LDFLAGS = -s ${LIBS}
       +CFLAGS = -g -std=c99 -pedantic -Wall -O2 ${INCS} ${CPPFLAGS}
       +LDFLAGS = -g ${LIBS}
        
        # Solaris
        #CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
   DIR diff --git a/dwm.c b/dwm.c
       @@ -51,6 +51,7 @@
        #define LENGTH(x)       (sizeof x / sizeof x[0])
        #define MAXTAGLEN       16
        #define MOUSEMASK       (BUTTONMASK|PointerMotionMask)
       +#define TAGMASK         ((int)((1LL << LENGTH(tags)) - 1))
        
        /* enums */
        enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
       @@ -68,7 +69,7 @@ struct Client {
                long flags;
                unsigned int bw, oldbw;
                Bool isbanned, isfixed, isfloating, isurgent;
       -        Bool *tags;
       +        unsigned int tags;
                Client *next;
                Client *prev;
                Client *snext;
       @@ -93,8 +94,8 @@ typedef struct {
        typedef struct {
                unsigned long mod;
                KeySym keysym;
       -        void (*func)(const char *arg);
       -        const char *arg;
       +        void (*func)(void *arg);
       +        void *arg;
        } Key;
        
        typedef struct {
       @@ -107,7 +108,7 @@ typedef struct {
                const char *class;
                const char *instance;
                const char *title;
       -        const char *tag;
       +        unsigned int tags;
                Bool isfloating;
        } Rule;
        
       @@ -135,48 +136,47 @@ void eprint(const char *errstr, ...);
        void expose(XEvent *e);
        void focus(Client *c);
        void focusin(XEvent *e);
       -void focusnext(const char *arg);
       -void focusprev(const char *arg);
       +void focusnext(void *arg);
       +void focusprev(void *arg);
        Client *getclient(Window w);
        unsigned long getcolor(const char *colstr);
        long getstate(Window w);
        Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
        void grabbuttons(Client *c, Bool focused);
        void grabkeys(void);
       -unsigned int idxoftag(const char *t);
        void initfont(const char *fontstr);
        Bool isoccupied(unsigned int t);
        Bool isprotodel(Client *c);
        Bool isurgent(unsigned int t);
        Bool isvisible(Client *c);
        void keypress(XEvent *e);
       -void killclient(const char *arg);
       +void killclient(void *arg);
        void manage(Window w, XWindowAttributes *wa);
        void mappingnotify(XEvent *e);
        void maprequest(XEvent *e);
        void movemouse(Client *c);
        Client *nextunfloating(Client *c);
        void propertynotify(XEvent *e);
       -void quit(const char *arg);
       +void quit(void *arg);
        void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
        void resizemouse(Client *c);
        void restack(void);
        void run(void);
        void scan(void);
        void setclientstate(Client *c, long state);
       -void setmfact(const char *arg);
       +void setmfact(void *arg);
        void setup(void);
       -void spawn(const char *arg);
       -void tag(const char *arg);
       +void spawn(void *arg);
       +void tag(void *arg);
        unsigned int textnw(const char *text, unsigned int len);
        unsigned int textw(const char *text);
        void tile(void);
        void tileresize(Client *c, int x, int y, int w, int h);
       -void togglebar(const char *arg);
       -void togglefloating(const char *arg);
       -void togglelayout(const char *arg);
       -void toggletag(const char *arg);
       -void toggleview(const char *arg);
       +void togglebar(void *arg);
       +void togglefloating(void *arg);
       +void togglelayout(void *arg);
       +void toggletag(void *arg);
       +void toggleview(void *arg);
        void unban(Client *c);
        void unmanage(Client *c);
        void unmapnotify(XEvent *e);
       @@ -186,19 +186,19 @@ void updatesizehints(Client *c);
        void updatetilegeom(void);
        void updatetitle(Client *c);
        void updatewmhints(Client *c);
       -void view(const char *arg);
       -void viewprevtag(const char *arg);
       +void view(void *arg);
       +void viewprevtag(void *arg);
        int xerror(Display *dpy, XErrorEvent *ee);
        int xerrordummy(Display *dpy, XErrorEvent *ee);
        int xerrorstart(Display *dpy, XErrorEvent *ee);
       -void zoom(const char *arg);
       +void zoom(void *arg);
        
        /* variables */
        char stext[256];
        int screen, sx, sy, sw, sh;
        int bx, by, bw, bh, blw, wx, wy, ww, wh;
        int mx, my, mw, mh, tx, ty, tw, th;
       -int seltags = 0;
       +unsigned int seltags = 0;
        int (*xerrorxlib)(Display *, XErrorEvent *);
        unsigned int numlockmask = 0;
        void (*handler[LASTEvent]) (XEvent *) = {
       @@ -218,7 +218,7 @@ void (*handler[LASTEvent]) (XEvent *) = {
        Atom wmatom[WMLast], netatom[NetLast];
        Bool otherwm, readin;
        Bool running = True;
       -Bool *tagset[2];
       +unsigned int tagset[] = {1, 1}; /* after start, first tag is selected */
        Client *clients = NULL;
        Client *sel = NULL;
        Client *stack = NULL;
       @@ -231,14 +231,15 @@ Window root, barwin;
        
        /* configuration, allows nested code to access above variables */
        #include "config.h"
       -#define TAGSZ (LENGTH(tags) * sizeof(Bool))
       +
       +/* check if all tags will fit into a unsigned int bitarray. */
       +static char tags_is_a_sign_that_your_IQ[sizeof(int) * 8 < LENGTH(tags) ? -1 : 1];
        
        /* function implementations */
        
        void
        applyrules(Client *c) {
                unsigned int i;
       -        Bool matched = False;
                Rule *r;
                XClassHint ch = { 0 };
        
       @@ -250,18 +251,15 @@ applyrules(Client *c) {
                        && (!r->class || (ch.res_class && strstr(ch.res_class, r->class)))
                        && (!r->instance || (ch.res_name && strstr(ch.res_name, r->instance)))) {
                                c->isfloating = r->isfloating;
       -                        if(r->tag) {
       -                                c->tags[idxoftag(r->tag)] = True;
       -                                matched = True;
       -                        }
       +                        c->tags |= r->tags & TAGMASK;
                        }
                }
                if(ch.res_class)
                        XFree(ch.res_class);
                if(ch.res_name)
                        XFree(ch.res_name);
       -        if(!matched)
       -                memcpy(c->tags, tagset[seltags], TAGSZ);
       +        if(!c->tags)
       +                c->tags = tagset[seltags];
        }
        
        void
       @@ -307,7 +305,7 @@ ban(Client *c) {
        
        void
        buttonpress(XEvent *e) {
       -        unsigned int i, x;
       +        unsigned int i, x, mask;
                Client *c;
                XButtonPressedEvent *ev = &e->xbutton;
        
       @@ -316,17 +314,18 @@ buttonpress(XEvent *e) {
                        for(i = 0; i < LENGTH(tags); i++) {
                                x += textw(tags[i]);
                                if(ev->x < x) {
       +                                mask = 1 << i;
                                        if(ev->button == Button1) {
                                                if(ev->state & MODKEY)
       -                                                tag(tags[i]);
       +                                                tag(&mask);
                                                else
       -                                                view(tags[i]);
       +                                                view(&mask);
                                        }
                                        else if(ev->button == Button3) {
                                                if(ev->state & MODKEY)
       -                                                toggletag(tags[i]);
       +                                                toggletag(&mask);
                                                else
       -                                                toggleview(tags[i]);
       +                                                toggleview(&mask);
                                        }
                                        return;
                                }
       @@ -501,13 +500,13 @@ drawbar(void) {
                for(c = stack; c && !isvisible(c); c = c->snext);
                for(i = 0; i < LENGTH(tags); i++) {
                        dc.w = textw(tags[i]);
       -                if(tagset[seltags][i]) {
       +                if(tagset[seltags] & 1 << i) {
                                drawtext(tags[i], dc.sel, isurgent(i));
       -                        drawsquare(c && c->tags[i], isoccupied(i), isurgent(i), dc.sel);
       +                        drawsquare(c && c->tags & 1 << i, isoccupied(i), isurgent(i), dc.sel);
                        }
                        else {
                                drawtext(tags[i], dc.norm, isurgent(i));
       -                        drawsquare(c && c->tags[i], isoccupied(i), isurgent(i), dc.norm);
       +                        drawsquare(c && c->tags & 1 << i, isoccupied(i), isurgent(i), dc.norm);
                        }
                        dc.x += dc.w;
                }
       @@ -668,7 +667,7 @@ focusin(XEvent *e) { /* there are some broken focus acquiring clients */
        }
        
        void
       -focusnext(const char *arg) {
       +focusnext(void *arg) {
                Client *c;
        
                if(!sel)
       @@ -683,7 +682,7 @@ focusnext(const char *arg) {
        }
        
        void
       -focusprev(const char *arg) {
       +focusprev(void *arg) {
                Client *c;
        
                if(!sel)
       @@ -808,14 +807,6 @@ grabkeys(void) {
                }
        }
        
       -unsigned int
       -idxoftag(const char *t) {
       -        unsigned int i;
       -
       -        for(i = 0; (i < LENGTH(tags)) && t && strcmp(tags[i], t); i++);
       -        return (i < LENGTH(tags)) ? i : 0;
       -}
       -
        void
        initfont(const char *fontstr) {
                char *def, **missing;
       @@ -861,7 +852,7 @@ isoccupied(unsigned int t) {
                Client *c;
        
                for(c = clients; c; c = c->next)
       -                if(c->tags[t])
       +                if(c->tags & 1 << t)
                                return True;
                return False;
        }
       @@ -886,19 +877,14 @@ isurgent(unsigned int t) {
                Client *c;
        
                for(c = clients; c; c = c->next)
       -                if(c->isurgent && c->tags[t])
       +                if(c->isurgent && c->tags & 1 << t)
                                return True;
                return False;
        }
        
        Bool
        isvisible(Client *c) {
       -        unsigned int i;
       -
       -        for(i = 0; i < LENGTH(tags); i++)
       -                if(c->tags[i] && tagset[seltags][i])
       -                        return True;
       -        return False;
       +        return c->tags & tagset[seltags];
        }
        
        void
       @@ -919,7 +905,7 @@ keypress(XEvent *e) {
        }
        
        void
       -killclient(const char *arg) {
       +killclient(void *arg) {
                XEvent ev;
        
                if(!sel)
       @@ -945,7 +931,6 @@ manage(Window w, XWindowAttributes *wa) {
                XWindowChanges wc;
        
                c = emallocz(sizeof(Client));
       -        c->tags = emallocz(TAGSZ);
                c->win = w;
        
                /* geometry */
       @@ -980,7 +965,7 @@ manage(Window w, XWindowAttributes *wa) {
                if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
                        for(t = clients; t && t->win != trans; t = t->next);
                if(t)
       -                memcpy(c->tags, t->tags, TAGSZ);
       +                c->tags = t->tags;
                else
                        applyrules(c);
                if(!c->isfloating)
       @@ -1103,7 +1088,7 @@ propertynotify(XEvent *e) {
        }
        
        void
       -quit(const char *arg) {
       +quit(void *arg) {
                readin = running = False;
        }
        
       @@ -1334,20 +1319,17 @@ setclientstate(Client *c, long state) {
                                PropModeReplace, (unsigned char *)data, 2);
        }
        
       +/* arg > 1.0 will set mfact absolutly */
        void
       -setmfact(const char *arg) {
       -        double d;
       +setmfact(void *arg) {
       +        double d = *((double*) arg);
        
       -        if(!arg || lt->arrange != tile)
       +        if(!d || lt->arrange != tile)
                        return;
       -        else {
       -                d = strtod(arg, NULL);
       -                if(arg[0] == '-' || arg[0] == '+')
       -                        d += mfact;
       -                if(d < 0.1 || d > 0.9)
       -                        return;
       -                mfact = d;
       -        }
       +        d = d < 1.0 ? d + mfact : d - 1.0;
       +        if(d < 0.1 || d > 0.9)
       +                return;
       +        mfact = d;
                updatetilegeom();
                arrange();
        }
       @@ -1396,11 +1378,6 @@ setup(void) {
                if(!dc.font.set)
                        XSetFont(dpy, dc.gc, dc.font.xfont->fid);
        
       -        /* init tags */
       -        tagset[0] = emallocz(TAGSZ);
       -        tagset[1] = emallocz(TAGSZ);
       -        tagset[0][0] = tagset[1][0] = True;
       -
                /* init bar */
                for(blw = i = 0; LENGTH(layouts) > 1 && i < LENGTH(layouts); i++) {
                        w = textw(layouts[i].symbol);
       @@ -1435,13 +1412,11 @@ setup(void) {
        }
        
        void
       -spawn(const char *arg) {
       +spawn(void *arg) {
                static char *shell = NULL;
        
                if(!shell && !(shell = getenv("SHELL")))
                        shell = "/bin/sh";
       -        if(!arg)
       -                return;
                /* The double-fork construct avoids zombie processes and keeps the code
                 * clean from stupid signal handlers. */
                if(fork() == 0) {
       @@ -1449,8 +1424,8 @@ spawn(const char *arg) {
                                if(dpy)
                                        close(ConnectionNumber(dpy));
                                setsid();
       -                        execl(shell, shell, "-c", arg, (char *)NULL);
       -                        fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
       +                        execl(shell, shell, "-c", (char *)arg, (char *)NULL);
       +                        fprintf(stderr, "dwm: execl '%s -c %s'", shell, (char *)arg);
                                perror(" failed");
                        }
                        exit(0);
       @@ -1459,15 +1434,11 @@ spawn(const char *arg) {
        }
        
        void
       -tag(const char *arg) {
       -        unsigned int i;
       -
       -        if(!sel)
       -                return;
       -        for(i = 0; i < LENGTH(tags); i++)
       -                sel->tags[i] = (arg == NULL);
       -        sel->tags[idxoftag(arg)] = True;
       -        arrange();
       +tag(void *arg) {
       +        if(sel && *(int *)arg & TAGMASK) {
       +                sel->tags = *(int *)arg & TAGMASK;
       +                arrange();
       +        }
        }
        
        unsigned int
       @@ -1534,7 +1505,7 @@ tileresize(Client *c, int x, int y, int w, int h) {
        }
        
        void
       -togglebar(const char *arg) {
       +togglebar(void *arg) {
                showbar = !showbar;
                updategeom();
                updatebar();
       @@ -1542,7 +1513,7 @@ togglebar(const char *arg) {
        }
        
        void
       -togglefloating(const char *arg) {
       +togglefloating(void *arg) {
                if(!sel)
                        return;
                sel->isfloating = !sel->isfloating;
       @@ -1552,7 +1523,7 @@ togglefloating(const char *arg) {
        }
        
        void
       -togglelayout(const char *arg) {
       +togglelayout(void *arg) {
                unsigned int i;
        
                if(!arg) {
       @@ -1561,7 +1532,7 @@ togglelayout(const char *arg) {
                }
                else {
                        for(i = 0; i < LENGTH(layouts); i++)
       -                        if(!strcmp(arg, layouts[i].symbol))
       +                        if(!strcmp((char *)arg, layouts[i].symbol))
                                        break;
                        if(i == LENGTH(layouts))
                                return;
       @@ -1574,29 +1545,27 @@ togglelayout(const char *arg) {
        }
        
        void
       -toggletag(const char *arg) {
       -        unsigned int i, j;
       +toggletag(void *arg) {
       +        int i, m = *(int *)arg;
       +        for(i = 0; i < sizeof(int) * 8; i++)
       +                fputc(m & 1 << i ? '1' : '0', stdout);
       +        puts("");
       +        for(i = 0; i < sizeof(int) * 8; i++)
       +                fputc(TAGMASK & 1 << i ? '1' : '0', stdout);
       +        puts("aaa");
        
       -        if(!sel)
       -                return;
       -        i = idxoftag(arg);
       -        sel->tags[i] = !sel->tags[i];
       -        for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
       -        if(j == LENGTH(tags))
       -                sel->tags[i] = True; /* at least one tag must be enabled */
       -        arrange();
       +        if(sel && (sel->tags ^ ((*(int *)arg) & TAGMASK))) {
       +                sel->tags ^= (*(int *)arg) & TAGMASK;
       +                arrange();
       +        }
        }
        
        void
       -toggleview(const char *arg) {
       -        unsigned int i, j;
       -
       -        i = idxoftag(arg);
       -        tagset[seltags][i] = !tagset[seltags][i];
       -        for(j = 0; j < LENGTH(tags) && !tagset[seltags][j]; j++);
       -        if(j == LENGTH(tags))
       -                tagset[seltags][i] = True; /* at least one tag must be viewed */
       -        arrange();
       +toggleview(void *arg) {
       +        if((tagset[seltags] ^ ((*(int *)arg) & TAGMASK))) {
       +                tagset[seltags] ^= (*(int *)arg) & TAGMASK;
       +                arrange();
       +        }
        }
        
        void
       @@ -1622,7 +1591,6 @@ unmanage(Client *c) {
                        focus(NULL);
                XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
                setclientstate(c, WithdrawnState);
       -        free(c->tags);
                free(c);
                XSync(dpy, False);
                XSetErrorHandler(xerror);
       @@ -1769,15 +1737,16 @@ updatewmhints(Client *c) {
        }
        
        void
       -view(const char *arg) {
       -        seltags ^= 1; /* toggle sel tagset */
       -        memset(tagset[seltags], (NULL == arg), TAGSZ);
       -        tagset[seltags][idxoftag(arg)] = True;
       -        arrange();
       +view(void *arg) {
       +        if(*(int *)arg & TAGMASK) {
       +                seltags ^= 1; /* toggle sel tagset */
       +                tagset[seltags] = *(int *)arg & TAGMASK;
       +                arrange();
       +        }
        }
        
        void
       -viewprevtag(const char *arg) {
       +viewprevtag(void *arg) {
                seltags ^= 1; /* toggle sel tagset */
                arrange();
        }
       @@ -1816,7 +1785,7 @@ xerrorstart(Display *dpy, XErrorEvent *ee) {
        }
        
        void
       -zoom(const char *arg) {
       +zoom(void *arg) {
                Client *c = sel;
        
                if(c == nextunfloating(clients))