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	add sbase-style ecalloc(), calloc: or die - dmenu - dynamic menu
	git clone git://git.suckless.org/dmenu
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	---
	commit 5a20b409c673a6736c3f9326cb54edc32908f717
	parent 164986763a29db97abb52b15cbd282b5636d83c0
	Author: Hiltjo Posthuma <[email protected]>
	Date: Tue, 20 Oct 2015 22:51:57 +0200

	add sbase-style ecalloc(), calloc: or die

	... remove intermediary variables

	Diffstat:
	M drw.c \| 19 +++++++------------
	M util.c \| 10 ++++++++++
	M util.h \| 1 +

	3 files changed, 18 insertions(+), 12 deletions(-)
	---
	diff --git a/drw.c b/drw.c
	@@ -65,8 +65,7 @@ drw_create(Display *dpy, int screen, Window root, unsigned in…
	{
	Drw *drw;

	- if (!(drw = calloc(1, sizeof(Drw))))
	- return NULL;
	+ drw = ecalloc(1, sizeof(Drw));
	drw->dpy = dpy;
	drw->screen = screen;
	drw->root = root;
	@@ -189,16 +188,13 @@ Clr *
	drw_clr_create(Drw drw, const char clrname)
	{
	Clr *clr;
	- Colormap cmap;
	- Visual *vis;
	-
	if (!drw)
	return NULL;
	- if (!(clr = calloc(1, sizeof(Clr))))
	- return NULL;
	- cmap = DefaultColormap(drw->dpy, drw->screen);
	- vis = DefaultVisual(drw->dpy, drw->screen);
	- if (!XftColorAllocName(drw->dpy, vis, cmap, clrname, &clr->rgb))
	+
	+ clr = ecalloc(1, sizeof(Clr));
	+ if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
	+ DefaultColormap(drw->dpy, drw->screen),
	+ clrname, &clr->rgb))
	die("error, cannot allocate color '%s'\n", clrname);
	clr->pix = clr->rgb.pixel;

	@@ -409,8 +405,7 @@ drw_cur_create(Drw *drw, int shape)

	if (!drw)
	return NULL;
	- if (!(cur = calloc(1, sizeof(Cur))))
	- return NULL;
	+ cur = ecalloc(1, sizeof(Cur));
	cur->cursor = XCreateFontCursor(drw->dpy, shape);

	return cur;
	diff --git a/util.c b/util.c
	@@ -6,6 +6,16 @@

	#include "util.h"

	+void *
	+ecalloc(size_t nmemb, size_t size)
	+{
	+ void *p;
	+
	+ if (!(p = calloc(nmemb, size)))
	+ perror(NULL);
	+ return p;
	+}
	+
	void
	die(const char *fmt, ...) {
	va_list ap;
	diff --git a/util.h b/util.h
	@@ -5,3 +5,4 @@
	#define BETWEEN(X, A, B) ((A) <= (X) && (X) <= (B))

	void die(const char *errstr, ...);
	+void *ecalloc(size_t, size_t);