src/common/ealloc.c

#ifndef lint
static const char       RCSid[] = "$Id: ealloc.c,v 2.4 2003/04/23 00:52:33 greg Exp $";
#endif
/*
 *  ealloc.c - memory routines which call quit on error.
 */

#include "copyright.h"


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

#include "rterror.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((void *)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((void *)cp);
}
Revision:	2.5
Committed:	Thu Jul 17 09:21:29 2003 UTC (22 years, 3 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.4:	+2 -1 lines
Log Message:	Added prototypes and includes from patch by Randolph Fritz. Added more required includes and reduced other compile warnings.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.5	static const char RCSid[] = "$Id: ealloc.c,v 2.4 2003/04/23 00:52:33 greg Exp $";
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	schorsch	2.5	#include "rterror.h"
15	greg	1.1
16			char *
17			emalloc(n) /* return pointer to n uninitialized bytes */
18	greg	2.2	unsigned int n;
19	greg	1.1	{
20			register char *cp;
21
22			if (n == 0)
23			return(NULL);
24
25	greg	2.2	if ((cp = (char *)malloc(n)) != NULL)
26	greg	1.1	return(cp);
27
28			eputs("Out of memory in emalloc\n");
29			quit(1);
30			}
31
32
33			char *
34			ecalloc(ne, es) /* return pointer to initialized memory */
35	greg	2.2	register unsigned int ne;
36			unsigned int es;
37	greg	1.1	{
38			register char *cp;
39
40			ne *= es;
41			if (ne == 0)
42			return(NULL);
43
44	greg	2.2	if ((cp = (char *)malloc(ne)) == NULL) {
45	greg	1.1	eputs("Out of memory in ecalloc\n");
46			quit(1);
47			}
48			cp += ne;
49			while (ne--)
50			*--cp = 0;
51			return(cp);
52			}
53
54
55			char *
56			erealloc(cp, n) /* reallocate cp to size n */
57			register char *cp;
58	greg	2.2	unsigned int n;
59	greg	1.1	{
60			if (n == 0) {
61			if (cp != NULL)
62	greg	2.4	free((void *)cp);
63	greg	1.1	return(NULL);
64			}
65
66			if (cp == NULL)
67	greg	2.2	cp = (char *)malloc(n);
68	greg	1.1	else
69	greg	2.2	cp = (char )realloc((void )cp, n);
70	greg	1.1
71			if (cp != NULL)
72			return(cp);
73
74			eputs("Out of memory in erealloc\n");
75			quit(1);
76			}
77
78
79	greg	2.2	void
80	greg	1.1	efree(cp) /* free memory allocated by above */
81			char *cp;
82			{
83	greg	2.4	free((void *)cp);
84	greg	1.1	}