1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
//------------------------------------------------------------------------------
// LAGraph_Delete: deletes a graph and all its contents
//------------------------------------------------------------------------------
// LAGraph, (c) 2019-2022 by The LAGraph Contributors, All Rights Reserved.
// SPDX-License-Identifier: BSD-2-Clause
//
// For additional details (including references to third party source code and
// other files) see the LICENSE file or contact permission@sei.cmu.edu. See
// Contributors.txt for a full list of contributors. Created, in part, with
// funding and support from the U.S. Government (see Acknowledgments.txt file).
// DM22-0790
// Contributed by Timothy A. Davis, Texas A&M University
//------------------------------------------------------------------------------
#include "LG_internal.h"
int LAGraph_Delete
(
// input/output:
LAGraph_Graph *G, // the graph to delete; G set to NULL on output.
// All internal GrB_Matrix and GrB_Vector objects are
// freed, including G->A. To keep G->A while deleting
// the graph G, use:
// { A = G->A ; G->A = NULL ; LAGraph_Delete (&G, msg);}
char *msg
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
LG_CLEAR_MSG ;
if (G == NULL || (*G) == NULL)
{
// success: nothing to do
return (GrB_SUCCESS) ;
}
//--------------------------------------------------------------------------
// free the cached contents of the graph
//--------------------------------------------------------------------------
LG_TRY (LAGraph_DeleteCached (*G, msg)) ;
//--------------------------------------------------------------------------
// delete the primary contents of the graph, and the graph itself
//--------------------------------------------------------------------------
GRB_TRY (GrB_free (&((*G)->A))) ;
LAGraph_Free ((void **) G, NULL) ;
return (GrB_SUCCESS) ;
}