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 |
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*/ |
7 |
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8 |
greg |
2.3 |
#include "copyright.h" |
9 |
greg |
2.2 |
|
10 |
greg |
1.1 |
|
11 |
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#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 |
|
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emalloc(unsigned int n) |
18 |
greg |
1.1 |
{ |
19 |
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register char *cp; |
20 |
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21 |
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if (n == 0) |
22 |
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return(NULL); |
23 |
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24 |
greg |
2.2 |
if ((cp = (char *)malloc(n)) != NULL) |
25 |
greg |
1.1 |
return(cp); |
26 |
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27 |
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eputs("Out of memory in emalloc\n"); |
28 |
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quit(1); |
29 |
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} |
30 |
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31 |
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32 |
schorsch |
2.6 |
char * /* return pointer to initialized memory */ |
33 |
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ecalloc(register unsigned int ne, unsigned int es) |
34 |
greg |
1.1 |
{ |
35 |
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register char *cp; |
36 |
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37 |
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ne *= es; |
38 |
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if (ne == 0) |
39 |
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return(NULL); |
40 |
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41 |
greg |
2.2 |
if ((cp = (char *)malloc(ne)) == NULL) { |
42 |
greg |
1.1 |
eputs("Out of memory in ecalloc\n"); |
43 |
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quit(1); |
44 |
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} |
45 |
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cp += ne; |
46 |
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while (ne--) |
47 |
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*--cp = 0; |
48 |
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return(cp); |
49 |
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} |
50 |
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51 |
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52 |
schorsch |
2.6 |
char * /* reallocate cp to size n */ |
53 |
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erealloc(register char *cp, unsigned int n) |
54 |
greg |
1.1 |
{ |
55 |
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if (n == 0) { |
56 |
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if (cp != NULL) |
57 |
greg |
2.4 |
free((void *)cp); |
58 |
greg |
1.1 |
return(NULL); |
59 |
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} |
60 |
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61 |
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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 |
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if (cp != NULL) |
67 |
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return(cp); |
68 |
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69 |
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eputs("Out of memory in erealloc\n"); |
70 |
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quit(1); |
71 |
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} |
72 |
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73 |
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74 |
schorsch |
2.6 |
void /* free memory allocated by above */ |
75 |
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efree(char *cp) |
76 |
greg |
1.1 |
{ |
77 |
greg |
2.4 |
free((void *)cp); |
78 |
greg |
1.1 |
} |