src/common/ealloc.c

#ifndef lint
static const char       RCSid[] = "$Id: ealloc.c,v 2.10 2022/01/15 02:00:21 greg Exp $";
#endif
/*
 *  ealloc.c - memory routines which call quit on error.
 */

#include "copyright.h"


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

#include "rterror.h"
#include "rtmisc.h"

void *                  /* return pointer to n uninitialized bytes */
emalloc(size_t  n)
{
        void  *cp;
        
        if (n == 0)
                return(NULL);

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

        eputs("Out of memory in emalloc\n");
        quit(1);
        return NULL; /* pro forma return */
}


void *                  /* return pointer to initialized memory */
ecalloc(size_t ne, size_t es)
{
        void  *cp;
        
        if (!ne | !es)
                return(NULL);

        if ((cp = calloc(ne, es)) != NULL)
                return(cp);

        eputs("Out of memory in ecalloc\n");
        quit(1);
        return(NULL); /* pro forma return */
}


void *                  /* reallocate cp to size n */
erealloc(void  *cp, size_t  n)
{
        if (n == 0) {
                if (cp != NULL)
                        free(cp);
                return(NULL);
        }

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

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

        eputs("Out of memory in erealloc\n");
        quit(1);
        return NULL; /* pro forma return */
}


void                    /* free memory allocated by above */
efree(void *cp)
{
        if (cp)
                free(cp);
}
Revision:	2.11
Committed:	Wed Jan 19 00:59:33 2022 UTC (2 years, 3 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R4, HEAD
Changes since 2.10:	+2 -2 lines
Log Message:	fix: bad bug introduced in last change to ecalloc() -- recursive loop!
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	greg	2.11	static const char RCSid[] = "$Id: ealloc.c,v 2.10 2022/01/15 02:00:21 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	schorsch	2.9	#include "rtmisc.h"
16	greg	1.1
17	greg	2.10	void * /* return pointer to n uninitialized bytes */
18	schorsch	2.9	emalloc(size_t n)
19	greg	1.1	{
20	greg	2.10	void *cp;
21	greg	1.1
22			if (n == 0)
23			return(NULL);
24
25	schorsch	2.9	if ((cp = malloc(n)) != NULL)
26	greg	1.1	return(cp);
27
28			eputs("Out of memory in emalloc\n");
29			quit(1);
30	schorsch	2.8	return NULL; /* pro forma return */
31	greg	1.1	}
32
33
34	greg	2.10	void * /* return pointer to initialized memory */
35			ecalloc(size_t ne, size_t es)
36	greg	1.1	{
37	greg	2.10	void *cp;
38	greg	1.1
39	greg	2.10	if (!ne \| !es)
40	greg	1.1	return(NULL);
41
42	greg	2.11	if ((cp = calloc(ne, es)) != NULL)
43	greg	2.10	return(cp);
44
45			eputs("Out of memory in ecalloc\n");
46			quit(1);
47			return(NULL); /* pro forma return */
48	greg	1.1	}
49
50
51	greg	2.10	void * /* reallocate cp to size n */
52			erealloc(void *cp, size_t n)
53	greg	1.1	{
54			if (n == 0) {
55			if (cp != NULL)
56	schorsch	2.9	free(cp);
57	greg	1.1	return(NULL);
58			}
59
60			if (cp == NULL)
61	schorsch	2.9	cp = malloc(n);
62	greg	1.1	else
63	schorsch	2.9	cp = realloc(cp, n);
64	greg	1.1
65			if (cp != NULL)
66			return(cp);
67
68			eputs("Out of memory in erealloc\n");
69			quit(1);
70	schorsch	2.8	return NULL; /* pro forma return */
71	greg	1.1	}
72
73
74	greg	2.10	void /* free memory allocated by above */
75			efree(void *cp)
76	greg	1.1	{
77	greg	2.10	if (cp)
78			free(cp);
79	greg	1.1	}