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//------------------------------------------------------------------------------
// GrB_Matrix_clear: clears the content of a matrix
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// The A->x and A->i content is freed and the vector pointers A->p are set to
// zero. This puts the matrix A in the same state it had after GrB_Matrix_new
// (&A, ...). The dimensions and type of A are not changed. The matrix A on
// input may have readonly (shallow) components; these are simply removed.
#include "GB.h"
GrB_Info GrB_Matrix_clear // clear a matrix of all entries;
( // type and dimensions remain unchanged
GrB_Matrix A // matrix to clear
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_RETURN_IF_NULL (A) ;
GB_WHERE_1 (A, "GrB_Matrix_clear (A)") ;
//--------------------------------------------------------------------------
// clear the matrix
//--------------------------------------------------------------------------
return (GB_clear (A, Werk)) ;
}
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