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+/*
+
+xmalloc.h
+
+Author: Tatu Ylonen <ylo@cs.hut.fi>
+
+Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+                   All rights reserved
+
+Created: Mon Mar 20 22:09:17 1995 ylo
+
+Versions of malloc and friends that check their results, and never return
+failure (they call fatal if they encounter an error).
+
+*/
+
+/* RCSID("$Id: xmalloc.h,v 1.1 1999/10/27 03:42:46 damien Exp $"); */
+
+#ifndef XMALLOC_H
+#define XMALLOC_H
+
+/* Like malloc, but calls fatal() if out of memory. */
+void *xmalloc(size_t size);
+
+/* Like realloc, but calls fatal() if out of memory. */
+void *xrealloc(void *ptr, size_t new_size);
+
+/* Frees memory allocated using xmalloc or xrealloc. */
+void xfree(void *ptr);
+
+/* Allocates memory using xmalloc, and copies the string into that memory. */
+char *xstrdup(const char *str);
+
+#endif /* XMALLOC_H */