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//------------------------------------------------------------------------------
// gb_default_format: determine the default format
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "gb_interface.h"
GxB_Format_Value gb_default_format // GxB_BY_ROW or GxB_BY_COL
(
GrB_Index nrows, // row vectors are stored by row
GrB_Index ncols // column vectors are stored by column
)
{
GxB_Format_Value fmt ;
if (ncols == 1)
{
// column vectors are stored by column, by default
fmt = GxB_BY_COL ;
}
else if (nrows == 1)
{
// row vectors are stored by row, by default
fmt = GxB_BY_ROW ;
}
else
{
// get the default format
OK (GxB_Global_Option_get (GxB_FORMAT, &fmt)) ;
}
return (fmt) ;
}
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