3 static char elsieid[] = "@(#)ialloc.c 8.29";
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4 #endif /* !defined NOID */
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5 #endif /* !defined lint */
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11 #define nonzero(n) (((n) == 0) ? 1 : (n))
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17 return malloc((size_t) nonzero(n));
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21 icalloc(nelem, elsize)
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25 if (nelem == 0 || elsize == 0)
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27 return calloc((size_t) nelem, (size_t) elsize);
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31 irealloc(pointer, size)
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32 void * const pointer;
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35 if (pointer == NULL)
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36 return imalloc(size);
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37 return realloc((void *) pointer, (size_t) nonzero(size));
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43 const char * const new;
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45 register char * result;
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46 register int oldsize, newsize;
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48 newsize = (new == NULL) ? 0 : strlen(new);
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51 else if (newsize == 0)
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53 else oldsize = strlen(old);
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54 if ((result = irealloc(old, oldsize + newsize + 1)) != NULL)
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56 (void) strcpy(result + oldsize, new);
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62 const char * const string;
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64 return icatalloc((char *) NULL, string);
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