--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/liboctave/UMFPACK/UMFPACK/Source/umf_mem_init_memoryspace.c	Fri Feb 25 19:55:28 2005 +0000
@@ -0,0 +1,64 @@
+/* ========================================================================== */
+/* === UMF_mem_init_memoryspace ============================================= */
+/* ========================================================================== */
+
+/* -------------------------------------------------------------------------- */
+/* UMFPACK Version 4.4, Copyright (c) 2005 by Timothy A. Davis.  CISE Dept,   */
+/* Univ. of Florida.  All Rights Reserved.  See ../Doc/License for License.   */
+/* web: http://www.cise.ufl.edu/research/sparse/umfpack                       */
+/* -------------------------------------------------------------------------- */
+
+/* The UMF_mem_* routines manage the Numeric->Memory memory space. */
+
+#include "umf_internal.h"
+
+/* initialize the LU and element workspace (Numeric->Memory) */
+
+GLOBAL void UMF_mem_init_memoryspace
+(
+    NumericType *Numeric
+)
+{
+    Unit *p ;
+
+    ASSERT (Numeric != (NumericType *) NULL) ;
+    ASSERT (Numeric->Memory != (Unit *) NULL) ;
+    ASSERT (Numeric->size >= 3) ;
+    DEBUG0 (("Init memory space, size "ID"\n", Numeric->size)) ;
+
+    Numeric->ngarbage = 0 ;
+    Numeric->nrealloc = 0 ;
+    Numeric->ncostly = 0 ;
+    Numeric->ibig = EMPTY ;
+    Numeric->ihead = 0 ;
+    Numeric->itail = Numeric->size ;
+
+#ifndef NDEBUG
+    UMF_allocfail = FALSE ;
+#endif
+
+    /* allocate the 2-unit tail marker block and initialize it */
+    Numeric->itail -= 2 ;
+    p = Numeric->Memory + Numeric->itail ;
+    DEBUG2 (("p "ID" tail "ID"\n", (Int) (p-Numeric->Memory), Numeric->itail)) ;
+    Numeric->tail_usage = 2 ;
+    p->header.prevsize = 0 ;
+    p->header.size = 1 ;
+
+    /* allocate a 1-unit head marker block at the head of memory */
+    /* this is done so that an offset of zero is treated as a NULL pointer */
+    Numeric->ihead++ ;
+
+    /* initial usage in Numeric->Memory */
+    Numeric->max_usage = 3 ;
+    Numeric->init_usage = Numeric->max_usage ;
+
+    /* Note that UMFPACK_*symbolic ensures that Numeric->Memory is of size */
+    /* at least 3, so this initialization will always succeed. */
+
+#ifndef NDEBUG
+    DEBUG2 (("init_memoryspace, all free (except one unit at head\n")) ;
+    UMF_dump_memory (Numeric) ;
+#endif
+
+}