added Realloc, split into separate files

modules/src/alloc/Realloc.c

@@ -0,0 +1,27 @@
+/* $Header$ */
+/*
+ * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ * See the copyright notice in the ACK home directory, in the file "Copyright".
+ */
+/*	M E M O R Y  A L L O C A T I O N  R O U T I N E S	*/
+
+/*	The memory allocation routines offered in this file are:
+
+	char *Realloc(ptr, n)	: reallocate buffer to n bytes
+
+	This file imports routines from "system".
+*/
+
+#include	<system.h>
+#include	"in_all.h"
+#include	"alloc.h"
+
+EXPORT char *
+Realloc(ptr, sz)
+	char ptr[];
+	unsigned int sz;
+{
+	ptr = realloc(ptr, sz);
+	if (ptr == 0) No_Mem();
+	return ptr;
+}