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#ifndef lint |
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static const char RCSid[] = "$Id: ealloc.c,v 2.4 2003/04/23 00:52:33 greg Exp $"; |
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#endif |
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/* |
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* ealloc.c - memory routines which call quit on error. |
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*/ |
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|
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#include "copyright.h" |
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|
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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|
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#include "rterror.h" |
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|
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char * |
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emalloc(n) /* return pointer to n uninitialized bytes */ |
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unsigned int n; |
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{ |
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register char *cp; |
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|
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if (n == 0) |
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return(NULL); |
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|
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if ((cp = (char *)malloc(n)) != NULL) |
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return(cp); |
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|
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eputs("Out of memory in emalloc\n"); |
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quit(1); |
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} |
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|
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|
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char * |
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ecalloc(ne, es) /* return pointer to initialized memory */ |
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register unsigned int ne; |
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unsigned int es; |
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{ |
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register char *cp; |
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|
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ne *= es; |
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if (ne == 0) |
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return(NULL); |
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|
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if ((cp = (char *)malloc(ne)) == NULL) { |
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eputs("Out of memory in ecalloc\n"); |
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quit(1); |
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} |
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cp += ne; |
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while (ne--) |
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*--cp = 0; |
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return(cp); |
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} |
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|
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|
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char * |
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erealloc(cp, n) /* reallocate cp to size n */ |
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register char *cp; |
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unsigned int n; |
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{ |
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if (n == 0) { |
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if (cp != NULL) |
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free((void *)cp); |
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return(NULL); |
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} |
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|
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if (cp == NULL) |
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cp = (char *)malloc(n); |
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else |
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cp = (char *)realloc((void *)cp, n); |
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|
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if (cp != NULL) |
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return(cp); |
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|
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eputs("Out of memory in erealloc\n"); |
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quit(1); |
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} |
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|
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|
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void |
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efree(cp) /* free memory allocated by above */ |
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char *cp; |
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{ |
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free((void *)cp); |
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} |
