1 |
greg |
1.1 |
#ifndef lint |
2 |
schorsch |
2.5 |
static const char RCSid[] = "$Id: ealloc.c,v 2.4 2003/04/23 00:52:33 greg Exp $"; |
3 |
greg |
1.1 |
#endif |
4 |
greg |
1.2 |
/* |
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greg |
1.1 |
* ealloc.c - memory routines which call quit on error. |
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*/ |
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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 |
greg |
1.1 |
|
16 |
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char * |
17 |
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emalloc(n) /* return pointer to n uninitialized bytes */ |
18 |
greg |
2.2 |
unsigned int n; |
19 |
greg |
1.1 |
{ |
20 |
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register char *cp; |
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if (n == 0) |
23 |
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return(NULL); |
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25 |
greg |
2.2 |
if ((cp = (char *)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 |
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} |
31 |
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char * |
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ecalloc(ne, es) /* return pointer to initialized memory */ |
35 |
greg |
2.2 |
register unsigned int ne; |
36 |
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unsigned int es; |
37 |
greg |
1.1 |
{ |
38 |
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register char *cp; |
39 |
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40 |
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ne *= es; |
41 |
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if (ne == 0) |
42 |
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return(NULL); |
43 |
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44 |
greg |
2.2 |
if ((cp = (char *)malloc(ne)) == NULL) { |
45 |
greg |
1.1 |
eputs("Out of memory in ecalloc\n"); |
46 |
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quit(1); |
47 |
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} |
48 |
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cp += ne; |
49 |
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while (ne--) |
50 |
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*--cp = 0; |
51 |
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return(cp); |
52 |
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} |
53 |
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54 |
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55 |
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char * |
56 |
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erealloc(cp, n) /* reallocate cp to size n */ |
57 |
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register char *cp; |
58 |
greg |
2.2 |
unsigned int n; |
59 |
greg |
1.1 |
{ |
60 |
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if (n == 0) { |
61 |
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if (cp != NULL) |
62 |
greg |
2.4 |
free((void *)cp); |
63 |
greg |
1.1 |
return(NULL); |
64 |
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} |
65 |
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66 |
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if (cp == NULL) |
67 |
greg |
2.2 |
cp = (char *)malloc(n); |
68 |
greg |
1.1 |
else |
69 |
greg |
2.2 |
cp = (char *)realloc((void *)cp, n); |
70 |
greg |
1.1 |
|
71 |
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if (cp != NULL) |
72 |
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return(cp); |
73 |
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74 |
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eputs("Out of memory in erealloc\n"); |
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quit(1); |
76 |
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} |
77 |
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78 |
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79 |
greg |
2.2 |
void |
80 |
greg |
1.1 |
efree(cp) /* free memory allocated by above */ |
81 |
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char *cp; |
82 |
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{ |
83 |
greg |
2.4 |
free((void *)cp); |
84 |
greg |
1.1 |
} |