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	util.c - dwm - dynamic window manager
	git clone git://git.suckless.org/dwm
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	---
	util.c (572B)
	---
	1 /* See LICENSE file for copyright and license details. */
	2 #include <errno.h>
	3 #include <stdarg.h>
	4 #include <stdio.h>
	5 #include <stdlib.h>
	6 #include <string.h>
	7
	8 #include "util.h"
	9
	10 void
	11 die(const char *fmt, ...)
	12 {
	13 va_list ap;
	14 int saved_errno;
	15
	16 saved_errno = errno;
	17
	18 va_start(ap, fmt);
	19 vfprintf(stderr, fmt, ap);
	20 va_end(ap);
	21
	22 if (fmt[0] && fmt[strlen(fmt)-1] == ':')
	23 fprintf(stderr, " %s", strerror(saved_errno));
	24 fputc('\n', stderr);
	25
	26 exit(1);
	27 }
	28
	29 void *
	30 ecalloc(size_t nmemb, size_t size)
	31 {
	32 void *p;
	33
	34 if (!(p = calloc(nmemb, size)))
	35 die("calloc:");
	36 return p;
	37 }