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//------------------------------------------------------------------------------
// GB_bitmap_assign_7_whole_template: C bitmap, !M sparse/hyper, with accum
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// C<!M> += A assign
// C<!M> += A subassign
// C<!M,repl> += A assign
// C<!M,repl> += A subassign
//------------------------------------------------------------------------------
// C: bitmap
// M: present, hypersparse or sparse (not bitmap or full)
// Mask_comp: true
// Mask_struct: true or false
// C_replace: true or false
// accum: present
// A: matrix (hyper, sparse, bitmap, or full), or scalar
// kind: assign or subassign (same action)
// If C were full: entries can be deleted only if C_replace is true.
#undef GB_FREE_ALL
#define GB_FREE_ALL GB_FREE_ALL_FOR_BITMAP
{
//--------------------------------------------------------------------------
// get inputs
//--------------------------------------------------------------------------
GB_GET_C_A_SCALAR_FOR_BITMAP
GB_SLICE_M_FOR_BITMAP
GB_GET_ACCUM_FOR_BITMAP
//--------------------------------------------------------------------------
// scatter M
//--------------------------------------------------------------------------
// Cb [pC] += 2 for each entry M(i,j) in the mask
GB_bitmap_M_scatter_whole (C, M, GB_MASK_STRUCT,
GB_BITMAP_M_SCATTER_PLUS_2, M_ek_slicing, M_ntasks, M_nthreads) ;
// the bitmap of C now contains:
// Cb (i,j) = 0: cij not present, mij zero
// Cb (i,j) = 1: cij present, mij zero
// Cb (i,j) = 2: cij not present, mij 1
// Cb (i,j) = 3: cij present, mij 1
//--------------------------------------------------------------------------
// do the assignment
//--------------------------------------------------------------------------
if (GB_SCALAR_ASSIGN)
{
//----------------------------------------------------------------------
// scalar assignment: C<!M, replace or !replace> += scalar
//----------------------------------------------------------------------
if (C_replace)
{
//------------------------------------------------------------------
// C<!M,replace> += scalar
//------------------------------------------------------------------
#undef GB_CIJ_WORK
#define GB_CIJ_WORK(pC) \
{ \
switch (Cb [pC]) \
{ \
case 0: /* C(i,j) not present, !M(i,j) = 1 */ \
/* Cx [pC] = scalar */ \
GB_COPY_cwork_to_C (Cx, pC, cwork, C_iso) ; \
Cb [pC] = 1 ; \
task_cnvals++ ; \
break ; \
case 1: /* C(i,j) present, !M(i,j) = 1 */ \
/* Cx [pC] += scalar */ \
GB_ACCUMULATE_scalar (Cx, pC, ywork, C_iso) ; \
break ; \
case 2: /* C(i,j) not present, !M(i,j) = 0 */ \
/* clear the mask from C */ \
Cb [pC] = 0 ; \
break ; \
case 3: /* C(i,j) present, !M(i,j) = 0 */ \
/* delete this entry */ \
Cb [pC] = 0 ; \
task_cnvals-- ; \
break ; \
default: ; \
} \
}
#include "template/GB_bitmap_assign_C_whole_template.c"
}
else
{
//------------------------------------------------------------------
// C<!M> += scalar
//------------------------------------------------------------------
#undef GB_CIJ_WORK
#define GB_CIJ_WORK(pC) \
{ \
switch (Cb [pC]) \
{ \
case 0: /* C(i,j) not present, !M(i,j) = 1 */ \
/* Cx [pC] = scalar */ \
GB_COPY_cwork_to_C (Cx, pC, cwork, C_iso) ; \
Cb [pC] = 1 ; \
task_cnvals++ ; \
break ; \
case 1: /* C(i,j) present, !M(i,j) = 1 */ \
/* Cx [pC] += scalar */ \
GB_ACCUMULATE_scalar (Cx, pC, ywork, C_iso) ; \
break ; \
case 2: /* C(i,j) not present, !M(i,j) = 0 */ \
/* clear the mask from C */ \
Cb [pC] = 0 ; \
break ; \
case 3: /* C(i,j) present, !M(i,j) = 0 */ \
/* C(i,j) remains; clear the mask from C */ \
Cb [pC] = 1 ; \
break ; \
default: ; \
} \
}
#include "template/GB_bitmap_assign_C_whole_template.c"
}
}
else
{
//----------------------------------------------------------------------
// matrix assignment: C<!M, replace or !replace> += A
//----------------------------------------------------------------------
if (GB_IS_BITMAP (A) || GB_IS_FULL (A))
{
//------------------------------------------------------------------
// C<!M, replace or !replace> += A where A is bitmap or full
//------------------------------------------------------------------
if (C_replace)
{
//--------------------------------------------------------------
// C<!M, replace> += A where A is bitmap or full
//--------------------------------------------------------------
#undef GB_CIJ_WORK
#define GB_CIJ_WORK(pC) \
{ \
switch (Cb [pC]) \
{ \
case 0: /* C(i,j) not present, !M(i,j) = 1 */ \
if (GBb_A (Ab, pC)) \
{ \
/* Cx [pC] = Ax [pC] */ \
GB_COPY_aij_to_C (Cx,pC,Ax,pC,A_iso,cwork, \
C_iso) ; \
Cb [pC] = 1 ; \
task_cnvals++ ; \
} \
break ; \
case 1: /* C(i,j) present, !M(i,j) = 1 */ \
if (GBb_A (Ab, pC)) \
{ \
/* Cx [pC] += Ax [pC] */ \
GB_ACCUMULATE_aij (Cx,pC,Ax,pC,A_iso,ywork, \
C_iso) ; \
} \
break ; \
case 2: /* C(i,j) not present, !M(i,j) = 0 */ \
/* clear the mask from C */ \
Cb [pC] = 0 ; \
break ; \
case 3: /* C(i,j) present, !M(i,j) = 0 */ \
/* delete this entry */ \
Cb [pC] = 0 ; \
task_cnvals-- ; \
break ; \
default: ; \
} \
}
#include "template/GB_bitmap_assign_C_whole_template.c"
}
else
{
//--------------------------------------------------------------
// C<!M> += A where A is bitmap or full
//--------------------------------------------------------------
#undef GB_CIJ_WORK
#define GB_CIJ_WORK(pC) \
{ \
switch (Cb [pC]) \
{ \
case 0: /* C(i,j) not present, !M(i,j) = 1 */ \
if (GBb_A (Ab, pC)) \
{ \
/* Cx [pC] = Ax [pC] */ \
GB_COPY_aij_to_C (Cx,pC,Ax,pC,A_iso,cwork, \
C_iso) ; \
Cb [pC] = 1 ; \
task_cnvals++ ; \
} \
break ; \
case 1: /* C(i,j) present, !M(i,j) = 1 */ \
if (GBb_A (Ab, pC)) \
{ \
/* Cx [pC] += Ax [pC] */ \
GB_ACCUMULATE_aij (Cx,pC,Ax,pC,A_iso,ywork, \
C_iso) ; \
} \
Cb [pC] = 1 ; \
break ; \
case 2: /* C(i,j) not present, !M(i,j) = 0 */ \
/* clear the mask from C */ \
Cb [pC] = 0 ; \
break ; \
case 3: /* C(i,j) present, !M(i,j) = 0 */ \
/* keep the entry */ \
Cb [pC] = 1 ; \
break ; \
default: ; \
} \
}
#include "template/GB_bitmap_assign_C_whole_template.c"
}
}
else
{
//------------------------------------------------------------------
// C<!M, replace or !replace> += A where A is sparse or hyper
//------------------------------------------------------------------
// assign or accumulate entries from A into C
#undef GB_AIJ_WORK
#define GB_AIJ_WORK(pC,pA) \
{ \
int8_t cb = Cb [pC] ; \
if (cb == 0) \
{ \
/* Cx [pC] = Ax [pA] */ \
GB_COPY_aij_to_C (Cx, pC, Ax, pA, A_iso, cwork, C_iso) ; \
Cb [pC] = 1 ; \
task_cnvals++ ; \
} \
else if (cb == 1) \
{ \
/* Cx [pC] += Ax [pA] */ \
GB_ACCUMULATE_aij (Cx, pC, Ax, pA, A_iso, ywork, C_iso) ;\
} \
}
#include "template/GB_bitmap_assign_A_whole_template.c"
if (C_replace)
{
// clear the mask and delete entries not assigned
#undef GB_MASK_WORK
#define GB_MASK_WORK(pC) \
{ \
int8_t cb = Cb [pC] ; \
Cb [pC] = 0 ; \
task_cnvals -= (cb == 3) ; \
}
#include "template/GB_bitmap_assign_M_all_template.c"
}
else
{
// clear the mask
// Cb [pC] -= 2 for each entry M(i,j) in the mask
GB_bitmap_M_scatter_whole (C, M, GB_MASK_STRUCT,
GB_BITMAP_M_SCATTER_MINUS_2,
M_ek_slicing, M_ntasks, M_nthreads) ;
}
}
}
//--------------------------------------------------------------------------
// free workspace and return result
//--------------------------------------------------------------------------
C->nvals = cnvals ;
GB_FREE_ALL ;
ASSERT_MATRIX_OK (C, "final C for bitmap assign, !M, accum, whole", GB0) ;
return (GrB_SUCCESS) ;
}
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