src/common/ealloc.c

#ifndef lint
static const char       RCSid[] = "$Id: ealloc.c,v 2.8 2003/11/14 17:22:06 schorsch 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"

extern void *   /* return pointer to n uninitialized bytes */
emalloc(size_t  n)
{
        register 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 */
}


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

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


extern void *                   /* reallocate cp to size n */
erealloc(register 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 */
}


extern void                     /* free memory allocated by above */
efree(void  *cp)
{
        free(cp);
}
Revision:	2.9
Committed:	Sun Mar 28 20:33:12 2004 UTC (21 years, 7 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R2, rad5R3, rad5R0, rad5R1, rad4R2, rad3R7P2, rad3R7P1, rad4R1, rad4R0, rad3R6, rad3R6P1, rad3R8, rad3R9, rad4R2P1, rad4R2P2
Changes since 2.8:	+16 -15 lines
Log Message:	Continued ANSIfication, and other fixes and clarifications.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.9	static const char RCSid[] = "$Id: ealloc.c,v 2.8 2003/11/14 17:22:06 schorsch 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	schorsch	2.9	extern void * /* return pointer to n uninitialized bytes */
18			emalloc(size_t n)
19	greg	1.1	{
20	schorsch	2.9	register 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	schorsch	2.9	extern void * /* return pointer to initialized memory */
35			ecalloc(register size_t ne, size_t es)
36	greg	1.1	{
37			register char *cp;
38
39			ne *= es;
40			if (ne == 0)
41			return(NULL);
42
43	schorsch	2.9	if ((cp = 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	schorsch	2.9	extern void * /* reallocate cp to size n */
55			erealloc(register void *cp, size_t n)
56	greg	1.1	{
57			if (n == 0) {
58			if (cp != NULL)
59	schorsch	2.9	free(cp);
60	greg	1.1	return(NULL);
61			}
62
63			if (cp == NULL)
64	schorsch	2.9	cp = malloc(n);
65	greg	1.1	else
66	schorsch	2.9	cp = realloc(cp, n);
67	greg	1.1
68			if (cp != NULL)
69			return(cp);
70
71			eputs("Out of memory in erealloc\n");
72			quit(1);
73	schorsch	2.8	return NULL; /* pro forma return */
74	greg	1.1	}
75
76
77	schorsch	2.7	extern void /* free memory allocated by above */
78	schorsch	2.9	efree(void *cp)
79	greg	1.1	{
80	schorsch	2.9	free(cp);
81	greg	1.1	}