1 //------------------------------------------------------------------------------
2 // GrB_Matrix_clear: clears the content of a matrix
3 //------------------------------------------------------------------------------
4
5 // SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2021, All Rights Reserved.
6 // SPDX-License-Identifier: Apache-2.0
7
8 //------------------------------------------------------------------------------
9
10 // The A->x and A->i content is freed and the vector pointers A->p are set to
11 // zero. This puts the matrix A in the same state it had after GrB_Matrix_new
12 // (&A, ...). The dimensions and type of A are not changed.
13
14 #include "GB.h"
15
GrB_Matrix_clear(GrB_Matrix A)16 GrB_Info GrB_Matrix_clear // clear a matrix of all entries;
17 ( // type and dimensions remain unchanged
18 GrB_Matrix A // matrix to clear
19 )
20 {
21
22 //--------------------------------------------------------------------------
23 // check inputs
24 //--------------------------------------------------------------------------
25
26 GB_WHERE (A, "GrB_Matrix_clear (A)") ;
27 GB_RETURN_IF_NULL_OR_FAULTY (A) ;
28
29 //--------------------------------------------------------------------------
30 // clear the matrix
31 //--------------------------------------------------------------------------
32
33 return (GB_clear (A, Context)) ;
34 }
35
36