umf_free.c
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/* ========================================================================== */
/* === UMF_free ============================================================= */
/* ========================================================================== */
/* -------------------------------------------------------------------------- */
/* UMFPACK Copyright (c) Timothy A. Davis, CISE, */
/* Univ. of Florida. All Rights Reserved. See ../Doc/License for License. */
/* web: http://www.cise.ufl.edu/research/sparse/umfpack */
/* -------------------------------------------------------------------------- */
/*
Free a block previously allocated by UMF_malloc and return NULL.
Usage is p = UMF_free (p), to ensure that we don't free it twice.
Also maintains the UMFPACK malloc count.
*/
#include "umf_internal.h"
#if defined (UMF_MALLOC_COUNT) || !defined (NDEBUG)
#include "umf_malloc.h"
#endif
GLOBAL void *UMF_free
(
void *p
)
{
DEBUG0 (("UMF_free: "ID"\n", (Int) p)) ;
if (p)
{
/* see AMD/Source/amd_global.c for the memory allocator selection */
amd_free (p) ;
#if defined (UMF_MALLOC_COUNT) || !defined (NDEBUG)
/* One more object has been free'd. Keep track of the count. */
/* (purely for sanity checks). */
UMF_malloc_count-- ;
DEBUG0 ((" new malloc count: "ID"\n", UMF_malloc_count)) ;
#endif
}
return ((void *) NULL) ;
}