use NULL instead of 0 for pointers, (editors)

20 files changed, 99 insertions, 99 deletions

diff --git a/source/blender/editors/armature/poselib.c b/source/blender/editors/armature/poselib.c
index eb608e855a8..21e11d7a830 100644
--- a/source/blender/editors/armature/poselib.c
+++ b/source/blender/editors/armature/poselib.c
@@ -820,7 +820,7 @@ static void poselib_apply_pose (tPoseLib_PreviewData *pld)
 	bAction *act= pld->act;
 	bActionGroup *agrp;
 	
-	KeyframeEditData ked= {{0}};
+	KeyframeEditData ked= {{NULL}};
 	KeyframeEditFunc group_ok_cb;
 	int frame= 1;
 	
@@ -1455,7 +1455,7 @@ static void poselib_preview_cleanup (bContext *C, wmOperator *op)
 		
 		/* change active pose setting */
 		act->active_marker= BLI_findindex(&act->markers, marker) + 1;
-		action_set_activemarker(act, marker, 0);
+		action_set_activemarker(act, marker, NULL);
 		
 		/* Update event for pose and deformation children */
 		DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
diff --git a/source/blender/editors/curve/editcurve.c b/source/blender/editors/curve/editcurve.c
index e9fcbfdc0a4..d4b96762ab8 100644
--- a/source/blender/editors/curve/editcurve.c
+++ b/source/blender/editors/curve/editcurve.c
@@ -1069,7 +1069,7 @@ static void curve_rename_fcurves(Object *obedit, ListBase *orig_curves)
 	CVKeyIndex *keyIndex;
 	char rna_path[64], orig_rna_path[64];
 	AnimData *ad= BKE_animdata_from_id(&cu->id);
-	ListBase curves= {0, 0};
+	ListBase curves= {NULL, NULL};
 	FCurve *fcu, *next;
 
 	while(nu) {
@@ -2466,7 +2466,7 @@ void selectend_nurb(Object *obedit, short selfirst, short doswap, short selstatu
 	int a;
 	short sel;
 
-	if(obedit==0) return;
+	if(obedit==NULL) return;
 
 	cu= (Curve*)obedit->data;
 	cu->lastsel= NULL;
@@ -3315,7 +3315,7 @@ static short findnearestNurbvert(ViewContext *vc, short sel, int mval[2], Nurb *
 		/* sel==1: selected gets a disadvantage */
 		/* in nurb and bezt or bp the nearest is written */
 		/* return 0 1 2: handlepunt */
-	struct { BPoint *bp; BezTriple *bezt; Nurb *nurb; int dist, hpoint, select, mval[2]; } data = {0};
+	struct { BPoint *bp; BezTriple *bezt; Nurb *nurb; int dist, hpoint, select, mval[2]; } data = {NULL};
 
 	data.dist = 100;
 	data.hpoint = 0;
@@ -3342,24 +3342,24 @@ static void findselectedNurbvert(ListBase *editnurb, Nurb **nu, BezTriple **bezt
 	BPoint *bp1;
 	int a;
 
-	*nu= 0;
-	*bezt= 0;
-	*bp= 0;
+	*nu= NULL;
+	*bezt= NULL;
+	*bp= NULL;
 	for(nu1= editnurb->first; nu1; nu1= nu1->next) {
 		if(nu1->type == CU_BEZIER) {
 			bezt1= nu1->bezt;
 			a= nu1->pntsu;
 			while(a--) {
 				if( (bezt1->f1 & SELECT) || (bezt1->f2 & SELECT) || (bezt1->f3 & SELECT) ) {
-					if(*nu!=0 && *nu!= nu1) {
-						*nu= 0;
-						*bp= 0;
-						*bezt= 0;
+					if(*nu != NULL && *nu != nu1) {
+						*nu= NULL;
+						*bp= NULL;
+						*bezt= NULL;
 						return;
 					}
 					else if(*bezt || *bp) {
-						*bp= 0;
-						*bezt= 0;
+						*bp= NULL;
+						*bezt= NULL;
 					}
 					else {
 						*bezt= bezt1;
@@ -3374,15 +3374,15 @@ static void findselectedNurbvert(ListBase *editnurb, Nurb **nu, BezTriple **bezt
 			a= nu1->pntsu*nu1->pntsv;
 			while(a--) {
 				if( bp1->f1 & 1 ) {
-					if(*nu!=0 && *nu!= nu1) {
-						*bp= 0;
-						*bezt= 0;
-						*nu= 0;
+					if(*nu != NULL && *nu != nu1) {
+						*bp= NULL;
+						*bezt= NULL;
+						*nu= NULL;
 						return;
 					}
 					else if(*bezt || *bp) {
-						*bp= 0;
-						*bezt= 0;
+						*bp= NULL;
+						*bezt= NULL;
 					}
 					else {
 						*bp= bp1;
@@ -3421,7 +3421,7 @@ static int convertspline(short type, Nurb *nu)
 				bezt++;
 			}
 			MEM_freeN(nu->bp);
-			nu->bp= 0;
+			nu->bp= NULL;
 			nu->pntsu= nr;
 			nu->type = CU_BEZIER;
 			calchandlesNurb(nu);
@@ -3521,7 +3521,7 @@ static int convertspline(short type, Nurb *nu)
 					bezt++;
 				}
 				MEM_freeN(nu->bp);
-				nu->bp= 0;
+				nu->bp= NULL;
 				MEM_freeN(nu->knotsu);
 				nu->knotsu= NULL;
 				nu->pntsu= nr;
@@ -3726,12 +3726,12 @@ typedef struct NurbSort {
 	float vec[3];
 } NurbSort;
 
-static ListBase nsortbase= {0, 0};
+static ListBase nsortbase= {NULL, NULL};
 /*  static NurbSort *nusmain; */ /* this var seems to go unused... at least in this file */
 
 static void make_selection_list_nurb(ListBase *editnurb)
 {
-	ListBase nbase= {0, 0};
+	ListBase nbase= {NULL, NULL};
 	NurbSort *nus, *nustest, *headdo, *taildo;
 	Nurb *nu;
 	BPoint *bp;
@@ -3766,7 +3766,7 @@ static void make_selection_list_nurb(ListBase *editnurb)
 	while(nbase.first) {
 	
 		headdist= taildist= 1.0e30;
-		headdo= taildo= 0;
+		headdo= taildo= NULL;
 
 		nustest= nbase.first;
 		while(nustest) {
@@ -3977,7 +3977,7 @@ static int make_segment_exec(bContext *C, wmOperator *op)
 	Object *obedit= CTX_data_edit_object(C);
 	Curve *cu= obedit->data;
 	ListBase *nubase= curve_get_editcurve(obedit);
-	Nurb *nu, *nu1=0, *nu2=0;
+	Nurb *nu, *nu1=NULL, *nu2=NULL;
 	BPoint *bp;
 	float *fp, offset;
 	int a, ok= 0;
@@ -4012,7 +4012,7 @@ static int make_segment_exec(bContext *C, wmOperator *op)
 
 		if((nu->flagu & CU_NURB_CYCLIC)==0) {    /* not cyclic */
 			if(nu->type == CU_BEZIER) {
-				if(nu1==0) {
+				if(nu1==NULL) {
 					if( BEZSELECTED_HIDDENHANDLES(cu, nu->bezt) ) nu1= nu;
 					else {
 						if( BEZSELECTED_HIDDENHANDLES(cu, &(nu->bezt[nu->pntsu-1])) ) {
@@ -4022,7 +4022,7 @@ static int make_segment_exec(bContext *C, wmOperator *op)
 						}
 					}
 				}
-				else if(nu2==0) {
+				else if(nu2==NULL) {
 					if( BEZSELECTED_HIDDENHANDLES(cu, nu->bezt) ) {
 						nu2= nu;
 						switchdirectionNurb(nu);
@@ -4038,7 +4038,7 @@ static int make_segment_exec(bContext *C, wmOperator *op)
 			}
 			else if(nu->pntsv==1) {
 				bp= nu->bp;
-				if(nu1==0) {
+				if(nu1==NULL) {
 					if( bp->f1 & SELECT) nu1= nu;
 					else {
 						bp= bp+(nu->pntsu-1);
@@ -4049,7 +4049,7 @@ static int make_segment_exec(bContext *C, wmOperator *op)
 						}
 					}
 				}
-				else if(nu2==0) {
+				else if(nu2==NULL) {
 					if( bp->f1 & SELECT ) {
 						nu2= nu;
 						switchdirectionNurb(nu);
@@ -4175,8 +4175,8 @@ int mouse_nurb(bContext *C, short mval[2], int extend)
 	ListBase *editnurb= curve_get_editcurve(obedit);
 	ViewContext vc;
 	Nurb *nu;
-	BezTriple *bezt=0;
-	BPoint *bp=0;
+	BezTriple *bezt=NULL;
+	BPoint *bp=NULL;
 	int location[2];
 	short hand;
 	
@@ -4475,7 +4475,7 @@ static int addvert_Nurb(bContext *C, short mode, float location[3])
 				mul_m3_v3(imat,newbp->vec);
 				newbp->vec[3]= 1.0;
 
-				newnu->knotsu= newnu->knotsv= 0;
+				newnu->knotsu= newnu->knotsv= NULL;
 				nurbs_knot_calc_u(newnu);
 
 				ok= 1;
@@ -4541,7 +4541,7 @@ static int addvert_Nurb(bContext *C, short mode, float location[3])
 			bezt= newbezt;
 			ok= 1;
 		}
-		else bezt= 0;
+		else bezt= NULL;
 
 		if(bezt) {
 			if(!newnu) nu->pntsu++;
@@ -4612,7 +4612,7 @@ static int addvert_Nurb(bContext *C, short mode, float location[3])
 			bp= newbp;
 			ok= 1;
 		}
-		else bp= 0;
+		else bp= NULL;
 
 		if(bp) {
 			if(mode=='e') {
@@ -5031,13 +5031,13 @@ static int select_row_exec(bContext *C, wmOperator *UNUSED(op))
 	Object *obedit= CTX_data_edit_object(C);
 	Curve *cu= obedit->data;
 	ListBase *editnurb= curve_get_editcurve(obedit);
-	static BPoint *last=0;
+	static BPoint *last= NULL;
 	static int direction=0;
 	Nurb *nu;
 	BPoint *bp;
 	int u = 0, v = 0, a, b, ok=0;
 
-	if(editnurb->first==0)
+	if(editnurb->first == NULL)
 		return OPERATOR_CANCELLED;
 	if(cu->lastsel==NULL)
 		return OPERATOR_CANCELLED;
@@ -6065,7 +6065,7 @@ int join_curve_exec(bContext *C, wmOperator *UNUSED(op))
 	float imat[4][4], cmat[4][4];
 	int a;
 
-	tempbase.first= tempbase.last= 0;
+	tempbase.first= tempbase.last= NULL;
 	
 	/* trasnform all selected curves inverse in obact */
 	invert_m4_m4(imat, ob->obmat);
diff --git a/source/blender/editors/gpencil/drawgpencil.c b/source/blender/editors/gpencil/drawgpencil.c
index 79746f401cf..ffaedf6a5bc 100644
--- a/source/blender/editors/gpencil/drawgpencil.c
+++ b/source/blender/editors/gpencil/drawgpencil.c
@@ -500,7 +500,7 @@ static void gp_draw_strokes (bGPDframe *gpf, int offsx, int offsy, int winx, int
 			continue;
 		if (!(dflag & GP_DRAWDATA_ONLYI2D) && (gps->flag & GP_STROKE_2DIMAGE))
 			continue;
-		if ((gps->points == 0) || (gps->totpoints < 1))
+		if ((gps->points == NULL) || (gps->totpoints < 1))
 			continue;
 		
 		/* check which stroke-drawer to use */
diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index c7182eded18..373958b3b2e 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -2194,7 +2194,7 @@ static void ui_block_do_align_but(uiBut *first, int nr)
 						if(bt->next && bt->next->alignnr == nr && buts_are_horiz(bt, bt->next)==0 ) break; 
 						bt= bt->next;
 					}
-					if(bt==0 || bt->alignnr != nr) flag= UI_BUT_ALIGN_TOP|UI_BUT_ALIGN_RIGHT;
+					if(bt==NULL || bt->alignnr != nr) flag= UI_BUT_ALIGN_TOP|UI_BUT_ALIGN_RIGHT;
 				}
 			}
 			else flag |= UI_BUT_ALIGN_LEFT;
diff --git a/source/blender/editors/interface/interface_handlers.c b/source/blender/editors/interface/interface_handlers.c
index 06af4e2552c..c01eb351fba 100644
--- a/source/blender/editors/interface/interface_handlers.c
+++ b/source/blender/editors/interface/interface_handlers.c
@@ -4459,7 +4459,7 @@ static int ui_do_button(bContext *C, uiBlock *block, uiBut *but, wmEvent *event)
 				return WM_UI_HANDLER_BREAK;
 			}
 		} 
-		else if(but->pointype && but->poin==0) {
+		else if(but->pointype && but->poin==NULL) {
 			/* there's a pointer needed */
 			BKE_reportf(NULL, RPT_WARNING, "DoButton pointer error: %s", but->str);
 			button_activate_state(C, but, BUTTON_STATE_EXIT);
diff --git a/source/blender/editors/mesh/editface.c b/source/blender/editors/mesh/editface.c
index 302e5f79e8d..cec7d7a3d54 100644
--- a/source/blender/editors/mesh/editface.c
+++ b/source/blender/editors/mesh/editface.c
@@ -164,7 +164,7 @@ void paintface_hide(Object *ob, const int unselected)
 	int a;
 	
 	me= get_mesh(ob);
-	if(me==0 || me->totface==0) return;
+	if(me==NULL || me->totface==0) return;
 
 	mface= me->mface;
 	a= me->totface;
@@ -193,7 +193,7 @@ void paintface_reveal(Object *ob)
 	int a;
 
 	me= get_mesh(ob);
-	if(me==0 || me->totface==0) return;
+	if(me==NULL || me->totface==0) return;
 
 	mface= me->mface;
 	a= me->totface;
@@ -333,7 +333,7 @@ void paintface_select_linked(bContext *UNUSED(C), Object *ob, short UNUSED(mval[
 	unsigned int index=0;
 
 	me = get_mesh(ob);
-	if(me==0 || me->totface==0) return;
+	if(me==NULL || me->totface==0) return;
 
 	if (mode==0 || mode==1) {
 		// XXX - Causes glitches, not sure why
@@ -356,7 +356,7 @@ void paintface_deselect_all_visible(Object *ob, int action, short flush_flags)
 	int a;
 
 	me= get_mesh(ob);
-	if(me==0) return;
+	if(me==NULL) return;
 	
 	if(action == SEL_INVERT) {
 		mface= me->mface;
diff --git a/source/blender/editors/space_time/space_time.c b/source/blender/editors/space_time/space_time.c
index 34a88d3556e..b3c51953d59 100644
--- a/source/blender/editors/space_time/space_time.c
+++ b/source/blender/editors/space_time/space_time.c
@@ -269,7 +269,7 @@ static ActKeyColumn *time_cfra_find_ak (ActKeyColumn *ak, float cframe)
 /* helper for time_draw_keyframes() */
 static void time_draw_idblock_keyframes(View2D *v2d, ID *id, short onlysel)
 {
-	bDopeSheet ads= {0};
+	bDopeSheet ads= {NULL};
 	DLRBT_Tree keys;
 	ActKeyColumn *ak;
 	
diff --git a/source/blender/editors/space_view3d/drawmesh.c b/source/blender/editors/space_view3d/drawmesh.c
index a72f7e224b5..6c5f093d6f1 100644
--- a/source/blender/editors/space_view3d/drawmesh.c
+++ b/source/blender/editors/space_view3d/drawmesh.c
@@ -86,7 +86,7 @@ static void get_marked_edge_info__orFlags(EdgeHash *eh, int v0, int v1, int flag
 	int *flags_p;
 
 	if (!BLI_edgehash_haskey(eh, v0, v1)) {
-		BLI_edgehash_insert(eh, v0, v1, 0);
+		BLI_edgehash_insert(eh, v0, v1, NULL);
 	}
 
 	flags_p = (int*) BLI_edgehash_lookup_p(eh, v0, v1);
@@ -381,7 +381,7 @@ static void draw_textured_begin(Scene *scene, View3D *v3d, RegionView3D *rv3d, O
 	Gtexdraw.istex = istex;
 	Gtexdraw.color_profile = scene->r.color_mgt_flag & R_COLOR_MANAGEMENT;
 	memcpy(Gtexdraw.obcol, obcol, sizeof(obcol));
-	set_draw_settings_cached(1, 0, 0, Gtexdraw.islit, 0, 0, 0);
+	set_draw_settings_cached(1, 0, NULL, Gtexdraw.islit, NULL, 0, 0);
 	glShadeModel(GL_SMOOTH);
 }
 
diff --git a/source/blender/editors/space_view3d/drawobject.c b/source/blender/editors/space_view3d/drawobject.c
index bd7b4c711d9..82d7cac1a42 100644
--- a/source/blender/editors/space_view3d/drawobject.c
+++ b/source/blender/editors/space_view3d/drawobject.c
@@ -2327,7 +2327,7 @@ static void draw_em_fancy(Scene *scene, View3D *v3d, RegionView3D *rv3d, Object
 			glEnable(GL_LIGHTING);
 			glFrontFace((ob->transflag&OB_NEG_SCALE)?GL_CW:GL_CCW);
 
-			finalDM->drawMappedFaces(finalDM, draw_em_fancy__setFaceOpts, 0, 0, GPU_enable_material);
+			finalDM->drawMappedFaces(finalDM, draw_em_fancy__setFaceOpts, NULL, 0, GPU_enable_material);
 
 			glFrontFace(GL_CCW);
 			glDisable(GL_LIGHTING);
@@ -3136,7 +3136,7 @@ static int drawCurveDerivedMesh(Scene *scene, View3D *v3d, RegionView3D *rv3d, B
 static int drawDispList(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *base, int dt)
 {
 	Object *ob= base->object;
-	ListBase *lb=0;
+	ListBase *lb=NULL;
 	DispList *dl;
 	Curve *cu;
 	int solid, retval= 0;
@@ -3158,7 +3158,7 @@ static int drawDispList(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *bas
 			dl= lb->first;
 			if(dl==NULL) return 1;
 
-			if(dl->nors==0) addnormalsDispList(lb);
+			if(dl->nors==NULL) addnormalsDispList(lb);
 			index3_nors_incr= 0;
 			
 			if( displist_has_faces(lb)==0) {
@@ -3173,7 +3173,7 @@ static int drawDispList(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *bas
 					GPU_end_object_materials();
 				}
 				else if(dt == OB_SHADED) {
-					if(ob->disp.first==0) shadeDispList(scene, base);
+					if(ob->disp.first==NULL) shadeDispList(scene, base);
 					drawDispListshaded(lb, ob);
 				}
 				else {
@@ -3243,7 +3243,7 @@ static int drawDispList(Scene *scene, View3D *v3d, RegionView3D *rv3d, Base *bas
 				}
 				else if(dt == OB_SHADED) {
 					dl= lb->first;
-					if(dl && dl->col1==0) shadeDispList(scene, base);
+					if(dl && dl->col1==NULL) shadeDispList(scene, base);
 					drawDispListshaded(lb, ob);
 				}
 				else {
@@ -3456,9 +3456,9 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 	ParticleEditSettings *pset = PE_settings(scene);
 	ParticleSettings *part;
 	ParticleData *pars, *pa;
-	ParticleKey state, *states=0;
+	ParticleKey state, *states=NULL;
 	ParticleBillboardData bb;
-	ParticleSimulationData sim= {0};
+	ParticleSimulationData sim= {NULL};
 	ParticleDrawData *pdd = psys->pdd;
 	Material *ma;
 	float vel[3], imat[4][4];
@@ -3473,16 +3473,16 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 	unsigned char tcol[4]= {0, 0, 0, 255};
 
 /* 1. */
-	if(psys==0)
+	if(psys==NULL)
 		return;
 
 	part=psys->part;
 	pars=psys->particles;
 
-	if(part==0 || !psys_check_enabled(ob, psys))
+	if(part==NULL || !psys_check_enabled(ob, psys))
 		return;
 
-	if(pars==0) return;
+	if(pars==NULL) return;
 
 	/* don't draw normal paths in edit mode */
 	if(psys_in_edit_mode(scene, psys) && (pset->flag & PE_DRAW_PART)==0)
@@ -3550,7 +3550,7 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 
 	totpart=psys->totpart;
 
-	cfra=bsystem_time(scene, 0, (float)CFRA, 0.0f);
+	cfra= bsystem_time(scene, NULL, (float)CFRA, 0.0f);
 
 	if(draw_as==PART_DRAW_PATH && psys->pathcache==NULL && psys->childcache==NULL)
 		draw_as=PART_DRAW_DOT;
@@ -3583,19 +3583,19 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 				create_cdata = 1;
 			break;
 		case PART_DRAW_OB:
-			if(part->dup_ob==0)
+			if(part->dup_ob==NULL)
 				draw_as=PART_DRAW_DOT;
 			else
 				draw_as=0;
 			break;
 		case PART_DRAW_GR:
-			if(part->dup_group==0)
+			if(part->dup_group==NULL)
 				draw_as=PART_DRAW_DOT;
 			else
 				draw_as=0;
 			break;
 		case PART_DRAW_BB:
-			if(v3d->camera==0 && part->bb_ob==0){
+			if(v3d->camera==NULL && part->bb_ob==NULL){
 				printf("Billboards need an active camera or a target object!\n");
 
 				draw_as=part->draw_as=PART_DRAW_DOT;
@@ -3784,7 +3784,7 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 				}
 #endif // XXX old animation system
 
-				pa_size=psys_get_child_size(psys,cpa,cfra,0);
+				pa_size=psys_get_child_size(psys,cpa,cfra,NULL);
 
 				pa_health = -1.0;
 
@@ -3903,7 +3903,7 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 
 	if(draw_as==PART_DRAW_PATH){
 		ParticleCacheKey **cache, *path;
-		float *cd2=0,*cdata2=0;
+		float *cd2=NULL,*cdata2=NULL;
 
 		/* setup gl flags */
 		if (1) { //ob_dt > OB_WIRE) {
@@ -3971,7 +3971,7 @@ static void draw_new_particle_system(Scene *scene, View3D *v3d, RegionView3D *rv
 
 		if(cdata2)
 			MEM_freeN(cdata2);
-		cd2=cdata2=0;
+		cd2=cdata2=NULL;
 
 		glLineWidth(1.0f);
 
@@ -4091,7 +4091,7 @@ static void draw_update_ptcache_edit(Scene *scene, Object *ob, PTCacheEdit *edit
 		PE_update_object(scene, ob, 0);
 
 	/* create path and child path cache if it doesn't exist already */
-	if(edit->pathcache==0)
+	if(edit->pathcache == NULL)
 		psys_cache_edit_paths(scene, ob, edit, CFRA);
 }
 
@@ -4107,7 +4107,7 @@ static void draw_ptcache_edit(Scene *scene, View3D *v3d, PTCacheEdit *edit)
 	float nosel_col[3];
 	float *pathcol = NULL, *pcol;
 
-	if(edit->pathcache==0)
+	if(edit->pathcache == NULL)
 		return;
 
 	PE_hide_keys_time(scene, edit, CFRA);
@@ -4166,8 +4166,8 @@ static void draw_ptcache_edit(Scene *scene, View3D *v3d, PTCacheEdit *edit)
 		glPointSize(UI_GetThemeValuef(TH_VERTEX_SIZE));
 
 		if(pset->selectmode==SCE_SELECT_POINT){
-			float *pd=0,*pdata=0;
-			float *cd=0,*cdata=0;
+			float *pd=NULL,*pdata=NULL;
+			float *cd=NULL,*cdata=NULL;
 			int totkeys = 0;
 
 			for (i=0, point=edit->points; i<totpoint; i++, point++)
@@ -4219,8 +4219,8 @@ static void draw_ptcache_edit(Scene *scene, View3D *v3d, PTCacheEdit *edit)
 				pd += pd ? 3 * point->totkey : 0;
 				cd += (timed?4:3) * point->totkey;
 			}
-			if(pdata) { MEM_freeN(pdata); pd=pdata=0; }
-			if(cdata) { MEM_freeN(cdata); cd=cdata=0; }
+			if(pdata) { MEM_freeN(pdata); pd=pdata=NULL; }
+			if(cdata) { MEM_freeN(cdata); cd=cdata=NULL; }
 		}
 		else if(pset->selectmode == SCE_SELECT_END){
 			for(i=0, point=edit->points; i<totpoint; i++, point++){
@@ -6018,7 +6018,7 @@ void draw_object(Scene *scene, ARegion *ar, View3D *v3d, Base *base, int flag)
 
 		if(ob->soft /*&& flag & OB_SBMOTION*/){
 			float mrt[3][3],msc[3][3],mtr[3][3]; 
-			SoftBody *sb = 0;
+			SoftBody *sb= NULL;
 			float tipw = 0.5f, tiph = 0.5f,drawsize = 4.0f;
 			if ((sb= ob->soft)){
 				if(sb->solverflags & SBSO_ESTIMATEIPO){
diff --git a/source/blender/editors/space_view3d/view3d_buttons.c b/source/blender/editors/space_view3d/view3d_buttons.c
index cdbde49eb77..1f123c11a8b 100644
--- a/source/blender/editors/space_view3d/view3d_buttons.c
+++ b/source/blender/editors/space_view3d/view3d_buttons.c
@@ -292,7 +292,7 @@ static void v3d_editvertex_buts(uiLayout *layout, View3D *v3d, Object *ob, float
 		
 		uiBlockBeginAlign(block);
 		if(tot==1) {
-			uiDefBut(block, LABEL, 0, "Vertex:",					0, 130, 200, 20, 0, 0, 0, 0, 0, "");
+			uiDefBut(block, LABEL, 0, "Vertex:",					0, 130, 200, 20, NULL, 0, 0, 0, 0, "");
 			uiBlockBeginAlign(block);
 
 			but= uiDefButF(block, NUM, B_OBJECTPANELMEDIAN, "X:",		0, 110, 200, 20, &(tfp->ve_median[0]), -lim, lim, 10, 3, "");
@@ -325,7 +325,7 @@ static void v3d_editvertex_buts(uiLayout *layout, View3D *v3d, Object *ob, float
 			}
 		}
 		else {
-			uiDefBut(block, LABEL, 0, "Median:",					0, 130, 200, 20, 0, 0, 0, 0, 0, "");
+			uiDefBut(block, LABEL, 0, "Median:",					0, 130, 200, 20, NULL, 0, 0, 0, 0, "");
 			uiBlockBeginAlign(block);
 			but= uiDefButF(block, NUM, B_OBJECTPANELMEDIAN, "X:",		0, 110, 200, 20, &(tfp->ve_median[0]), -lim, lim, 10, 3, "");
 			uiButSetUnitType(but, PROP_UNIT_LENGTH);
@@ -755,7 +755,7 @@ static void view3d_panel_vgroup(const bContext *C, Panel *pa)
 			dg = BLI_findlink (&ob->defbase, dvert->dw[i].def_nr);
 			if(dg) {
 				uiDefButF(block, NUM, B_VGRP_PNL_EDIT_SINGLE + dvert->dw[i].def_nr, dg->name,	0, yco, 180, 20, &dvert->dw[i].weight, 0.0, 1.0, 1, 3, "");
-				uiDefBut(block, BUT, B_VGRP_PNL_COPY_SINGLE + dvert->dw[i].def_nr, "C", 180,yco,20,20, 0, 0, 0, 0, 0, "Copy this groups weight to other selected verts");
+				uiDefBut(block, BUT, B_VGRP_PNL_COPY_SINGLE + dvert->dw[i].def_nr, "C", 180,yco,20,20, NULL, 0, 0, 0, 0, "Copy this groups weight to other selected verts");
 				yco -= 20;
 			}
 		}
@@ -763,8 +763,8 @@ static void view3d_panel_vgroup(const bContext *C, Panel *pa)
 
 		uiBlockEndAlign(block);
 		uiBlockBeginAlign(block);
-		uiDefBut(block, BUT, B_VGRP_PNL_NORMALIZE, "Normalize", 0, yco,100,20, 0, 0, 0, 0, 0, "Normalize active vertex weights");
-		uiDefBut(block, BUT, B_VGRP_PNL_COPY, "Copy", 100,yco,100,20, 0, 0, 0, 0, 0, "Copy active vertex to other seleted verts");
+		uiDefBut(block, BUT, B_VGRP_PNL_NORMALIZE, "Normalize", 0, yco,100,20, NULL, 0, 0, 0, 0, "Normalize active vertex weights");
+		uiDefBut(block, BUT, B_VGRP_PNL_COPY, "Copy", 100,yco,100,20, NULL, 0, 0, 0, 0, "Copy active vertex to other seleted verts");
 		uiBlockEndAlign(block);
 	}
 }
diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c
index 9cecc4ce5af..3ca6d39305c 100644
--- a/source/blender/editors/space_view3d/view3d_draw.c
+++ b/source/blender/editors/space_view3d/view3d_draw.c
@@ -1908,7 +1908,7 @@ static void gpu_update_lamps_shadows(Scene *scene, View3D *v3d)
 		/* this needs to be done better .. */
 		float viewmat[4][4], winmat[4][4];
 		int drawtype, lay, winsize, flag2=v3d->flag2;
-		ARegion ar= {0};
+		ARegion ar= {NULL};
 		RegionView3D rv3d= {{{0}}};
 		
 		drawtype= v3d->drawtype;
@@ -2206,8 +2206,8 @@ ImBuf *ED_view3d_draw_offscreen_imbuf(Scene *scene, View3D *v3d, ARegion *ar, in
 /* creates own 3d views, used by the sequencer */
 ImBuf *ED_view3d_draw_offscreen_imbuf_simple(Scene *scene, int width, int height, unsigned int flag, int drawtype)
 {
-	View3D v3d= {0};
-	ARegion ar= {0};
+	View3D v3d= {NULL};
+	ARegion ar= {NULL};
 	RegionView3D rv3d= {{{0}}};
 
 	/* connect data */
diff --git a/source/blender/editors/space_view3d/view3d_edit.c b/source/blender/editors/space_view3d/view3d_edit.c
index ad62799db29..38888670dc2 100644
--- a/source/blender/editors/space_view3d/view3d_edit.c
+++ b/source/blender/editors/space_view3d/view3d_edit.c
@@ -2778,7 +2778,7 @@ static int depth_segment_cb(int x, int y, void *userData)
 
 int view_autodist_depth_segment(struct ARegion *ar, short mval_sta[2], short mval_end[2], int margin, float *depth)
 {
-	struct { struct ARegion *ar; int margin; float depth; } data = {0};
+	struct { struct ARegion *ar; int margin; float depth; } data = {NULL};
 	int p1[2];
 	int p2[2];
 
diff --git a/source/blender/editors/space_view3d/view3d_select.c b/source/blender/editors/space_view3d/view3d_select.c
index 5c62119409d..72061bdbdac 100644
--- a/source/blender/editors/space_view3d/view3d_select.c
+++ b/source/blender/editors/space_view3d/view3d_select.c
@@ -1263,7 +1263,7 @@ static int mouse_select(bContext *C, short *mval, short extend, short obcenter,
 				}
 				base= base->next;
 				
-				if(base==0) base= FIRSTBASE;
+				if(base==NULL) base= FIRSTBASE;
 				if(base==startbase) break;
 			}
 		}
diff --git a/source/blender/editors/transform/transform.c b/source/blender/editors/transform/transform.c
index ede8af2afe8..5708b4fa8b7 100644
--- a/source/blender/editors/transform/transform.c
+++ b/source/blender/editors/transform/transform.c
@@ -1989,7 +1989,7 @@ static void constraintTransLim(TransInfo *UNUSED(t), TransData *td)
 {
 	if (td->con) {
 		bConstraintTypeInfo *cti= get_constraint_typeinfo(CONSTRAINT_TYPE_LOCLIMIT);
-		bConstraintOb cob= {0};
+		bConstraintOb cob= {NULL};
 		bConstraint *con;
 		
 		/* Make a temporary bConstraintOb for using these limit constraints
@@ -2145,7 +2145,7 @@ static void constraintSizeLim(TransInfo *t, TransData *td)
 {
 	if (td->con && td->ext) {
 		bConstraintTypeInfo *cti= get_constraint_typeinfo(CONSTRAINT_TYPE_SIZELIMIT);
-		bConstraintOb cob= {0};
+		bConstraintOb cob= {NULL};
 		bConstraint *con;
 		
 		/* Make a temporary bConstraintOb for using these limit constraints
@@ -2279,10 +2279,10 @@ int handleEventWarp(TransInfo *t, wmEvent *event)
 	if (event->type == MIDDLEMOUSE && event->val==KM_PRESS)
 	{
 		// Use customData pointer to signal warp direction
-		if	(t->customData == 0)
+		if	(t->customData == NULL)
 			t->customData = (void*)1;
 		else
-			t->customData = 0;
+			t->customData = NULL;
 		
 		status = 1;
 	}
@@ -2420,7 +2420,7 @@ int handleEventShear(TransInfo *t, wmEvent *event)
 	if (event->type == MIDDLEMOUSE && event->val==KM_PRESS)
 	{
 		// Use customData pointer to signal Shear direction
-		if	(t->customData == 0)
+		if	(t->customData == NULL)
 		{
 			initMouseInputMode(t, &t->mouse, INPUT_VERTICAL_ABSOLUTE);
 			t->customData = (void*)1;
@@ -2428,7 +2428,7 @@ int handleEventShear(TransInfo *t, wmEvent *event)
 		else
 		{
 			initMouseInputMode(t, &t->mouse, INPUT_HORIZONTAL_ABSOLUTE);
-			t->customData = 0;
+			t->customData = NULL;
 		}
 		
 		status = 1;
@@ -2472,7 +2472,7 @@ int Shear(TransInfo *t, short UNUSED(mval[2]))
 	unit_m3(smat);
 	
 	// Custom data signals shear direction
-	if (t->customData == 0)
+	if (t->customData == NULL)
 		smat[1][0] = value;
 	else
 		smat[0][1] = value;
diff --git a/source/blender/editors/transform/transform_conversions.c b/source/blender/editors/transform/transform_conversions.c
index 11f82f4160d..9a70ec2f3be 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -1742,10 +1742,10 @@ static void createTransParticleVerts(bContext *C, TransInfo *t)
 				td->ival = *(key->time);
 				/* abuse size and quat for min/max values */
 				td->flag |= TD_NO_EXT;
-				if(k==0) tx->size = 0;
+				if(k==0) tx->size = NULL;
 				else tx->size = (key - 1)->time;
 
-				if(k == point->totkey - 1) tx->quat = 0;
+				if(k == point->totkey - 1) tx->quat = NULL;
 				else tx->quat = (key + 1)->time;
 			}
 
@@ -5088,7 +5088,7 @@ static void createTransObject(bContext *C, TransInfo *t)
 		}
 		
 		/* select linked objects, but skip them later */
-		if (ob->id.lib != 0) {
+		if (ob->id.lib != NULL) {
 			td->flag |= TD_SKIP;
 		}
 		
diff --git a/source/blender/editors/transform/transform_generics.c b/source/blender/editors/transform/transform_generics.c
index 01d30d67fdf..1fb57f2820d 100644
--- a/source/blender/editors/transform/transform_generics.c
+++ b/source/blender/editors/transform/transform_generics.c
@@ -338,7 +338,7 @@ void recalcData(TransInfo *t)
 		Scene *scene= t->scene;
 		SpaceAction *saction= (SpaceAction *)t->sa->spacedata.first;
 		
-		bAnimContext ac= {0};
+		bAnimContext ac= {NULL};
 		ListBase anim_data = {NULL, NULL};
 		bAnimListElem *ale;
 		int filter;
diff --git a/source/blender/editors/uvedit/uvedit_draw.c b/source/blender/editors/uvedit/uvedit_draw.c
index 45d1ceec30f..38df9a48fd0 100644
--- a/source/blender/editors/uvedit/uvedit_draw.c
+++ b/source/blender/editors/uvedit/uvedit_draw.c
@@ -179,7 +179,7 @@ static void draw_uvs_stretch(SpaceImage *sima, Scene *scene, EditMesh *em, MTFac
 
 				totarea += EM_face_area(efa);
 				//totuvarea += tf_area(tf, efa->v4!=0);
-				totuvarea += uv_area(tf_uv, efa->v4!=0);
+				totuvarea += uv_area(tf_uv, efa->v4 != NULL);
 				
 				if(uvedit_face_visible(scene, ima, efa, tf)) {
 					efa->tmp.p = tf;
@@ -212,7 +212,7 @@ static void draw_uvs_stretch(SpaceImage *sima, Scene *scene, EditMesh *em, MTFac
 						area = EM_face_area(efa) / totarea;
 						uv_copy_aspect(tf->uv, tf_uv, aspx, aspy);
 						//uvarea = tf_area(tf, efa->v4!=0) / totuvarea;
-						uvarea = uv_area(tf_uv, efa->v4!=0) / totuvarea;
+						uvarea = uv_area(tf_uv, efa->v4 != NULL) / totuvarea;
 						
 						if(area < FLT_EPSILON || uvarea < FLT_EPSILON)
 							areadiff = 1.0;
diff --git a/source/blender/editors/uvedit/uvedit_ops.c b/source/blender/editors/uvedit/uvedit_ops.c
index 9a48b6c9653..62ebee4ccfa 100644
--- a/source/blender/editors/uvedit/uvedit_ops.c
+++ b/source/blender/editors/uvedit/uvedit_ops.c
@@ -2935,7 +2935,7 @@ static int reveal_exec(bContext *C, wmOperator *UNUSED(op))
 				for(efa= em->faces.first; efa; efa= efa->next) {
 					if(!(efa->h) && !(efa->f & SELECT)) {
 						/* All verts must be unselected for the face to be selected in the UV view */
-						if((efa->v1->f&SELECT)==0 && (efa->v2->f&SELECT)==0 && (efa->v3->f&SELECT)==0 && (efa->v4==0 || (efa->v4->f&SELECT)==0)) {
+						if((efa->v1->f&SELECT)==0 && (efa->v2->f&SELECT)==0 && (efa->v3->f&SELECT)==0 && (efa->v4==NULL || (efa->v4->f&SELECT)==0)) {
 							tf= CustomData_em_get(&em->fdata, efa->data, CD_MTFACE);
 
 							tf->flag |= TF_SEL1|TF_SEL2|TF_SEL3|TF_SEL4;
diff --git a/source/blender/windowmanager/intern/wm_init_exit.c b/source/blender/windowmanager/intern/wm_init_exit.c
index a797b461025..b914f63a384 100644
--- a/source/blender/windowmanager/intern/wm_init_exit.c
+++ b/source/blender/windowmanager/intern/wm_init_exit.c
@@ -430,7 +430,7 @@ void WM_exit(bContext *C)
 // XXX		UI_filelist_free_icons();
 	}
 	
-	GPU_buffer_pool_free(0);
+	GPU_buffer_pool_free(NULL);
 	GPU_free_unused_buffers();
 	GPU_extensions_exit();
 	
diff --git a/source/blender/windowmanager/intern/wm_operators.c b/source/blender/windowmanager/intern/wm_operators.c
index bbcb4d60c77..b46f5f34271 100644
--- a/source/blender/windowmanager/intern/wm_operators.c
+++ b/source/blender/windowmanager/intern/wm_operators.c
@@ -1141,7 +1141,7 @@ static uiBlock *wm_block_create_splash(bContext *C, ARegion *ar, void *UNUSED(ar
 	uiBlockSetEmboss(block, UI_EMBOSS);
 	/* show the splash menu (containing interaction presets), using python */
 	if (mt) {
-		Menu menu= {0};
+		Menu menu= {NULL};
 		menu.layout= layout;
 		menu.type= mt;
 		mt->draw(C, &menu);
@@ -1499,7 +1499,7 @@ static int wm_link_append_exec(bContext *C, wmOperator *op)
 {
 	Main *bmain= CTX_data_main(C);
 	Scene *scene= CTX_data_scene(C);
-	Main *mainl= 0;
+	Main *mainl= NULL;
 	BlendHandle *bh;
 	PropertyRNA *prop;
 	char name[FILE_MAX], dir[FILE_MAX], libname[FILE_MAX], group[GROUP_MAX];