src/common/ealloc.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 *  ealloc.c - memory routines which call quit on error.
 */

#include "copyright.h"


#include  <stdio.h>
#include  <stdlib.h>


char *
emalloc(n)                      /* return pointer to n uninitialized bytes */
unsigned int  n;
{
        register char  *cp;
        
        if (n == 0)
                return(NULL);

        if ((cp = (char *)malloc(n)) != NULL)
                return(cp);

        eputs("Out of memory in emalloc\n");
        quit(1);
}


char *
ecalloc(ne, es)                 /* return pointer to initialized memory */
register unsigned int  ne;
unsigned int  es;
{
        register char  *cp;
        
        ne *= es;
        if (ne == 0)
                return(NULL);

        if ((cp = (char *)malloc(ne)) == NULL) {
                eputs("Out of memory in ecalloc\n");
                quit(1);
        }
        cp += ne;
        while (ne--)
                *--cp = 0;
        return(cp);
}


char *
erealloc(cp, n)                 /* reallocate cp to size n */
register char  *cp;
unsigned int  n;
{
        if (n == 0) {
                if (cp != NULL)
                        free(cp);
                return(NULL);
        }

        if (cp == NULL)
                cp = (char *)malloc(n);
        else 
                cp = (char *)realloc((void *)cp, n);

        if (cp != NULL)
                return(cp);

        eputs("Out of memory in erealloc\n");
        quit(1);
}


void
efree(cp)                       /* free memory allocated by above */
char  *cp;
{
        free((char *)cp);
}
Revision:	2.3
Committed:	Tue Feb 25 02:47:21 2003 UTC (21 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.2:	+1 -56 lines
Log Message:	Replaced inline copyright notice with #include "copyright.h"
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.2	static const char RCSid[] = "$Id$";
3	greg	1.1	#endif
4	greg	1.2	/*
5	greg	1.1	* ealloc.c - memory routines which call quit on error.
6			*/
7
8	greg	2.3	#include "copyright.h"
9	greg	2.2
10	greg	1.1
11			#include <stdio.h>
12	greg	2.2	#include <stdlib.h>
13	greg	1.1
14
15			char *
16			emalloc(n) /* return pointer to n uninitialized bytes */
17	greg	2.2	unsigned int n;
18	greg	1.1	{
19			register char *cp;
20
21			if (n == 0)
22			return(NULL);
23
24	greg	2.2	if ((cp = (char *)malloc(n)) != NULL)
25	greg	1.1	return(cp);
26
27			eputs("Out of memory in emalloc\n");
28			quit(1);
29			}
30
31
32			char *
33			ecalloc(ne, es) /* return pointer to initialized memory */
34	greg	2.2	register unsigned int ne;
35			unsigned int es;
36	greg	1.1	{
37			register char *cp;
38
39			ne *= es;
40			if (ne == 0)
41			return(NULL);
42
43	greg	2.2	if ((cp = (char *)malloc(ne)) == NULL) {
44	greg	1.1	eputs("Out of memory in ecalloc\n");
45			quit(1);
46			}
47			cp += ne;
48			while (ne--)
49			*--cp = 0;
50			return(cp);
51			}
52
53
54			char *
55			erealloc(cp, n) /* reallocate cp to size n */
56			register char *cp;
57	greg	2.2	unsigned int n;
58	greg	1.1	{
59			if (n == 0) {
60			if (cp != NULL)
61			free(cp);
62			return(NULL);
63			}
64
65			if (cp == NULL)
66	greg	2.2	cp = (char *)malloc(n);
67	greg	1.1	else
68	greg	2.2	cp = (char )realloc((void )cp, n);
69	greg	1.1
70			if (cp != NULL)
71			return(cp);
72
73			eputs("Out of memory in erealloc\n");
74			quit(1);
75			}
76
77
78	greg	2.2	void
79	greg	1.1	efree(cp) /* free memory allocated by above */
80			char *cp;
81			{
82	greg	2.2	free((char *)cp);
83	greg	1.1	}