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 |
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*/ |
7 |
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8 |
greg |
2.3 |
#include "copyright.h" |
9 |
greg |
2.2 |
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10 |
greg |
1.1 |
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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 |
schorsch |
2.9 |
#include "rtmisc.h" |
16 |
greg |
1.1 |
|
17 |
schorsch |
2.9 |
extern void * /* return pointer to n uninitialized bytes */ |
18 |
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emalloc(size_t n) |
19 |
greg |
1.1 |
{ |
20 |
schorsch |
2.9 |
register void *cp; |
21 |
greg |
1.1 |
|
22 |
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if (n == 0) |
23 |
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return(NULL); |
24 |
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25 |
schorsch |
2.9 |
if ((cp = malloc(n)) != NULL) |
26 |
greg |
1.1 |
return(cp); |
27 |
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28 |
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eputs("Out of memory in emalloc\n"); |
29 |
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quit(1); |
30 |
schorsch |
2.8 |
return NULL; /* pro forma return */ |
31 |
greg |
1.1 |
} |
32 |
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33 |
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34 |
schorsch |
2.9 |
extern void * /* return pointer to initialized memory */ |
35 |
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ecalloc(register size_t ne, size_t es) |
36 |
greg |
1.1 |
{ |
37 |
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register char *cp; |
38 |
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39 |
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ne *= es; |
40 |
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if (ne == 0) |
41 |
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return(NULL); |
42 |
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43 |
schorsch |
2.9 |
if ((cp = malloc(ne)) == NULL) { |
44 |
greg |
1.1 |
eputs("Out of memory in ecalloc\n"); |
45 |
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quit(1); |
46 |
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} |
47 |
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cp += ne; |
48 |
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while (ne--) |
49 |
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*--cp = 0; |
50 |
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return(cp); |
51 |
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} |
52 |
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53 |
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54 |
schorsch |
2.9 |
extern void * /* reallocate cp to size n */ |
55 |
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erealloc(register void *cp, size_t n) |
56 |
greg |
1.1 |
{ |
57 |
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if (n == 0) { |
58 |
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if (cp != NULL) |
59 |
schorsch |
2.9 |
free(cp); |
60 |
greg |
1.1 |
return(NULL); |
61 |
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} |
62 |
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63 |
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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 |
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if (cp != NULL) |
69 |
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return(cp); |
70 |
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71 |
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eputs("Out of memory in erealloc\n"); |
72 |
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quit(1); |
73 |
schorsch |
2.8 |
return NULL; /* pro forma return */ |
74 |
greg |
1.1 |
} |
75 |
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76 |
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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 |
} |