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//------------------------------------------------------------------------------
// GB_bitmap_assign: assign to C bitmap
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// Implements GrB_Row_assign, GrB_Col_assign, GrB_assign, GxB_subassign when C
// is in bitmap form, or when C is converted into bitmap form.
// C is returned as bitmap in all cases except for C = A or C = scalar (the
// whole_C_matrix case with GB_bitmap_assign_noM_noaccum_whole). For that
// method, C can be returned with any sparsity structure.
#include "GB_bitmap_assign_methods.h"
#include "GB_dense.h"
#define GB_FREE_ALL GB_phybix_free (C) ;
GrB_Info GB_bitmap_assign
(
// input/output:
GrB_Matrix C, // input/output matrix
// inputs:
const bool C_replace, // descriptor for C
const GrB_Index *I, // I index list
const int64_t nI,
const int Ikind,
const int64_t Icolon [3],
const GrB_Index *J, // J index list
const int64_t nJ,
const int Jkind,
const int64_t Jcolon [3],
const GrB_Matrix M, // mask matrix, NULL if not present
const bool Mask_comp, // true for !M, false for M
const bool Mask_struct, // true if M is structural, false if valued
const GrB_BinaryOp accum, // NULL if not present
const GrB_Matrix A, // input matrix, NULL for scalar assignment
const void *scalar, // input scalar, if A == NULL
const GrB_Type scalar_type, // type of input scalar
const int assign_kind, // row assign, col assign, assign, or subassign
GB_Context Context
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GrB_Info info ;
ASSERT_MATRIX_OK (C, "C for bitmap assign", GB0) ;
//--------------------------------------------------------------------------
// ensure C is in bitmap form
//--------------------------------------------------------------------------
GB_OK (GB_convert_any_to_bitmap (C, Context)) ;
ASSERT (GB_IS_BITMAP (C)) ;
bool whole_C_matrix = (Ikind == GB_ALL && Jkind == GB_ALL) ;
//--------------------------------------------------------------------------
// do the assignment
//--------------------------------------------------------------------------
if (M == NULL)
{
if (accum == NULL)
{
if (whole_C_matrix)
{
// C = A or scalar, no mask. C may become sparse, hyper, or
// full, or it may remain bitmap.
GB_OK (GB_bitmap_assign_noM_noaccum_whole (C, C_replace,
/* no M, */ Mask_comp, Mask_struct, /* no accum, */
A, scalar, scalar_type, Context)) ;
}
else
{
// C(I,J) = A or scalar, no mask
GB_OK (GB_bitmap_assign_noM_noaccum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
/* no M, */ Mask_comp, Mask_struct, /* no accum, */
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
else
{
if (whole_C_matrix)
{
// C += A or scalar, no mask.
GB_OK (GB_bitmap_assign_noM_accum_whole (C, C_replace,
/* no M, */ Mask_comp, Mask_struct, accum,
A, scalar, scalar_type, Context)) ;
}
else
{
// C(I,J) += A or scalar, no mask.
GB_OK (GB_bitmap_assign_noM_accum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
/* no M, */ Mask_comp, Mask_struct, accum,
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
}
else if (GB_IS_BITMAP (M) || GB_IS_FULL (M))
{
if (accum == NULL)
{
if (whole_C_matrix)
{
// C<M or !M, where M is full> = A or scalar
GB_OK (GB_bitmap_assign_fullM_noaccum_whole (C, C_replace,
M, Mask_comp, Mask_struct, /* no accum, */
A, scalar, scalar_type, Context)) ;
}
else
{
// C<M or !M, where M is full>(I,J) = A or scalar
GB_OK (GB_bitmap_assign_fullM_noaccum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
M, Mask_comp, Mask_struct, /* no accum, */
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
else
{
if (whole_C_matrix)
{
// C<M or !M, where M is full> = A or scalar
GB_OK (GB_bitmap_assign_fullM_accum_whole (C, C_replace,
M, Mask_comp, Mask_struct, accum,
A, scalar, scalar_type, Context)) ;
}
else
{
// C<M or !M, where M is full>(I,J) = A or scalar
GB_OK (GB_bitmap_assign_fullM_accum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
M, Mask_comp, Mask_struct, accum,
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
}
else if (!Mask_comp)
{
if (accum == NULL)
{
if (whole_C_matrix)
{
// C<M> = A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_M_noaccum_whole (C, C_replace,
M, /* Mask_comp false, */ Mask_struct, /* no accum, */
A, scalar, scalar_type, Context)) ;
}
else
{
// C<M>(I,J) = A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_M_noaccum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
M, /* Mask_comp false, */ Mask_struct, /* no accum, */
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
else
{
if (whole_C_matrix)
{
// C<M> += A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_M_accum_whole (C, C_replace,
M, /* Mask_comp false, */ Mask_struct, accum,
A, scalar, scalar_type, Context)) ;
}
else
{
// C<M>(I,J) += A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_M_accum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
M, /* Mask_comp false, */ Mask_struct, accum,
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
}
else // Mask_comp is true
{
if (accum == NULL)
{
if (whole_C_matrix)
{
// C<!M> = A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_notM_noaccum_whole (C, C_replace,
M, /* Mask_comp true, */ Mask_struct, /* no accum, */
A, scalar, scalar_type, Context)) ;
}
else
{
// C<!M>(I,J) = A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_notM_noaccum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
M, /* Mask_comp true, */ Mask_struct, /* no accum, */
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
else
{
if (whole_C_matrix)
{
// C<!M> += A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_notM_accum_whole (C, C_replace,
M, /* Mask_comp true, */ Mask_struct, accum,
A, scalar, scalar_type, Context)) ;
}
else
{
// C<!M>(I,J) += A or scalar, M is sparse or hypersparse
GB_OK (GB_bitmap_assign_notM_accum (C, C_replace,
I, nI, Ikind, Icolon, J, nJ, Jkind, Jcolon,
M, /* Mask_comp true, */ Mask_struct, accum,
A, scalar, scalar_type, assign_kind, Context)) ;
}
}
}
//--------------------------------------------------------------------------
// return result
//--------------------------------------------------------------------------
ASSERT_MATRIX_OK (C, "final C for bitmap assign", GB0) ;
return (GrB_SUCCESS) ;
}
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