src/common/ealloc.c

#ifndef lint
static const char       RCSid[] = "$Id: ealloc.c,v 2.5 2003/07/17 09:21:29 schorsch Exp $";
#endif
/*
 *  ealloc.c - memory routines which call quit on error.
 */

#include "copyright.h"


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

#include "rterror.h"

char *  /* return pointer to n uninitialized bytes */
emalloc(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 *                  /* return pointer to initialized memory */
ecalloc(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 *                  /* reallocate cp to size n */
erealloc(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                    /* free memory allocated by above */
efree(char  *cp)
{
        free((void *)cp);
}
Revision:	2.6
Committed:	Wed Jul 30 10:11:06 2003 UTC (22 years, 3 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.5:	+9 -15 lines
Log Message:	Added prototypes submitted by Randolph Fritz.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.6	static const char RCSid[] = "$Id: ealloc.c,v 2.5 2003/07/17 09:21:29 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	greg	1.1
16	schorsch	2.6	char * /* return pointer to n uninitialized bytes */
17			emalloc(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	schorsch	2.6	char * /* return pointer to initialized memory */
33			ecalloc(register unsigned int ne, unsigned int es)
34	greg	1.1	{
35			register char *cp;
36
37			ne *= es;
38			if (ne == 0)
39			return(NULL);
40
41	greg	2.2	if ((cp = (char *)malloc(ne)) == NULL) {
42	greg	1.1	eputs("Out of memory in ecalloc\n");
43			quit(1);
44			}
45			cp += ne;
46			while (ne--)
47			*--cp = 0;
48			return(cp);
49			}
50
51
52	schorsch	2.6	char * /* reallocate cp to size n */
53			erealloc(register char *cp, unsigned int n)
54	greg	1.1	{
55			if (n == 0) {
56			if (cp != NULL)
57	greg	2.4	free((void *)cp);
58	greg	1.1	return(NULL);
59			}
60
61			if (cp == NULL)
62	greg	2.2	cp = (char *)malloc(n);
63	greg	1.1	else
64	greg	2.2	cp = (char )realloc((void )cp, n);
65	greg	1.1
66			if (cp != NULL)
67			return(cp);
68
69			eputs("Out of memory in erealloc\n");
70			quit(1);
71			}
72
73
74	schorsch	2.6	void /* free memory allocated by above */
75			efree(char *cp)
76	greg	1.1	{
77	greg	2.4	free((void *)cp);
78	greg	1.1	}