?? alloc.c
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// Copyright (C) 1992-1998 by Michael K. Johnson, johnsonm@redhat.com// Copyright 2002 Albert Cahalan//// This file is placed under the conditions of the GNU Library// General Public License, version 2, or any later version.// See file COPYING for information on distribution conditions.#include <stdlib.h>#include <stdio.h>#include "alloc.h"void *xcalloc(void *pointer, int size) { void * ret; if (pointer) free(pointer); if (!(ret = calloc(1, size))) { fprintf(stderr, "xcalloc: allocation error, size = %d\n", size); exit(1); } return ret;}void *xmalloc(unsigned int size) { void *p; if (size == 0) ++size; p = malloc(size); if (!p) { fprintf(stderr, "xmalloc: malloc(%d) failed", size); perror(NULL); exit(1); } return(p);}void *xrealloc(void *oldp, unsigned int size) { void *p; if (size == 0) ++size; p = realloc(oldp, size); if (!p) { fprintf(stderr, "xrealloc: realloc(%d) failed", size); perror(NULL); exit(1); } return(p);}
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