garbeam@2: /*
garbeam@2:  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
garbeam@2:  * See LICENSE file for license details.
garbeam@2:  */
garbeam@2: 
garbeam@2: #include <stdarg.h>
garbeam@2: #include <stdio.h>
garbeam@2: #include <stdlib.h>
garbeam@3: #include <string.h>
garbeam@2: 
garbeam@2: void
garbeam@2: error(char *errstr, ...) {
garbeam@2: 	va_list ap;
garbeam@2: 	va_start(ap, errstr);
garbeam@2: 	vfprintf(stderr, errstr, ap);
garbeam@2: 	va_end(ap);
garbeam@2: 	exit(1);
garbeam@2: }
garbeam@2: 
garbeam@3: static void
garbeam@3: bad_malloc(unsigned int size)
garbeam@3: {
garbeam@3: 	fprintf(stderr, "fatal: could not malloc() %d bytes\n",
garbeam@3: 			(int) size);
garbeam@3: 	exit(1);
garbeam@3: }
garbeam@3: 
garbeam@3: void *
garbeam@3: emallocz(unsigned int size)
garbeam@3: {
garbeam@3: 	void *res = calloc(1, size);
garbeam@3: 	if(!res)
garbeam@3: 		bad_malloc(size);
garbeam@3: 	return res;
garbeam@3: }
garbeam@3: 
garbeam@3: void *
garbeam@3: emalloc(unsigned int size)
garbeam@3: {
garbeam@3: 	void *res = malloc(size);
garbeam@3: 	if(!res)
garbeam@3: 		bad_malloc(size);
garbeam@3: 	return res;
garbeam@3: }
garbeam@3: 
garbeam@3: void *
garbeam@3: erealloc(void *ptr, unsigned int size)
garbeam@3: {
garbeam@3: 	void *res = realloc(ptr, size);
garbeam@3: 	if(!res)
garbeam@3: 		bad_malloc(size);
garbeam@3: 	return res;
garbeam@3: }
garbeam@3: 
garbeam@3: char *
garbeam@3: estrdup(const char *str)
garbeam@3: {
garbeam@3: 	void *res = strdup(str);
garbeam@3: 	if(!res)
garbeam@3: 		bad_malloc(strlen(str));
garbeam@3: 	return res;
garbeam@3: }
garbeam@3: 
garbeam@3: void
garbeam@3: failed_assert(char *a, char *file, int line)
garbeam@3: {
garbeam@3: 	fprintf(stderr, "Assertion \"%s\" failed at %s:%d\n", a, file, line);
garbeam@3: 	abort();
garbeam@3: }
garbeam@3: 
garbeam@3: void
garbeam@3: swap(void **p1, void **p2)
garbeam@3: {
garbeam@3: 	void *tmp = *p1;
garbeam@3: 	*p1 = *p2;
garbeam@3: 	*p2 = tmp;
garbeam@3: }