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//------------------------------------------------------------------------------
// GB_enumify_sparsity: enumerate the sparsity structure of a matrix
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2021, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB.h"
#include "GB_stringify.h"
void GB_enumify_sparsity // enumerate the sparsity structure of a matrix
(
// output:
int *ecode, // enumerated sparsity structure:
// 0:hyper, 1:sparse, 2:bitmap, 3:full
// input:
int A_sparsity // 0:no matrix, 1:GxB_HYPERSPARSE, 2:GxB_SPARSE,
// 4:GxB_BITMAP, 8:GxB_FULL
)
{
int e;
if (A_sparsity == GxB_HYPERSPARSE)
{
e = 0 ;
}
else if (A_sparsity == GxB_BITMAP)
{
e = 2 ;
}
else if (A_sparsity == GxB_FULL)
{
e = 3 ;
}
else
{
// A is sparse, or there is no A (so pretend it is sparse)
e = 1 ;
}
(*ecode) = e ;
}
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