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//------------------------------------------------------------------------------
// GxB_Matrix_reshapeDup: reshape a matrix into another matrix
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// See GxB_Matrix_reshape for a description of the output matrix c.
// If the input matrix A is nrows-by-ncols, and the size of the newly-created
// matrix C is nrows_new-by-ncols_new, then nrows*ncols must equal
// nrows_new*ncols_new. The format of the input matrix A (by row or by column)
// determines the format of the output matrix C, which need not match the
// by_col input parameter.
#include "GB.h"
#include "reshape/GB_reshape.h"
GrB_Info GxB_Matrix_reshapeDup // reshape a GrB_Matrix into another GrB_Matrix
(
// output:
GrB_Matrix *C, // newly created output matrix, not in place
// input:
GrB_Matrix A, // input matrix, not modified
bool by_col, // true if reshape by column, false if by row
uint64_t nrows_new, // number of rows of C
uint64_t ncols_new, // number of columns of C
const GrB_Descriptor desc // to control # of threads used
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_RETURN_IF_NULL (C) ;
GB_RETURN_IF_NULL (A) ;
GB_WHERE_1 (A, "GxB_Matrix_reshapeDup (&C, A, nrows_new, ncols_new, desc)");
GB_BURBLE_START ("GxB_Matrix_reshapeDup") ;
GB_GET_DESCRIPTOR (info, desc, xx1, xx2, xx3, xx4, xx5, xx6, xx7) ;
//--------------------------------------------------------------------------
// reshape the matrix
//--------------------------------------------------------------------------
info = GB_reshape (C, A, by_col, nrows_new, ncols_new, Werk) ;
GB_BURBLE_END ;
return (info) ;
}
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