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function test244(tasks)
%TEST244 test reshape
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
if (nargin < 1)
tasks = [ ] ;
end
if (isempty (tasks))
tasks = {
{ 'double', 6, 6, 1, 1, 0, 0}, ... % ( 15, 15)
{ 'double', 6, 6, 1, 4, 0, 0}, ... % ( 2, 17)
} ;
end
track_coverage = false ;
if (track_coverage)
global GraphBLAS_grbcov
track_coverage = ~isempty (GraphBLAS_grbcov) ;
clast = sum (GraphBLAS_grbcov > 0) ;
cfirst = clast ;
end
rng ('default')
[~, ~, ~, types, ~, ~] = GB_spec_opsall ;
types = types.all ;
% create the test matrices
densities = [0.3 inf] ;
for m = 6 % [1 2 6] % 1:6
for n = 6 % [1 2 6] % 1:6
for kd = 1:2
AA {m,n,kd} = GB_spec_random (m, n, densities (kd), 99) ;
end
end
end
for kk = 1:length(tasks)
task = tasks {kk} ;
type = task {1} ;
m = task {2} ;
m = task {3} ;
kd = task {4} ;
sparsity = task {5} ;
is_csc = task {6} ;
iso = task {7} ;
% end
% for k1 = 1:length(types)
% type = types {k1} ;
% fprintf ('\n%-14s ', type) ;
% for m = 6 % [1 2 6] % 1:6
% for n = 6 % [1 2 6] % 1:6
mn = m*n ;
f = factor (mn) ;
% for d = [0.3 inf]
% for kd = 1:2
A = AA {m,n,kd} ; % GB_spec_random (m, n, d, 99, type) ;
% fprintf ('.') ;
% for sparsity = [1 2 4 8]
A.sparsity = sparsity ;
% for is_csc = [0 1]
A.is_csc = is_csc ;
% for iso = [false true]
A.iso = iso ;
for k = 1:length (f)
S = nchoosek (f, k) ;
for i = 1:size(S,1)
m2 = prod (S (i,:)) ;
n2 = mn / m2 ;
% reshape by column
C1 = A ;
x = 1 ;
if (iso)
[i,j,x] = find (C1.matrix, 1,'first') ;
C1.matrix (C1.pattern) = x ;
end
C1.matrix = reshape (C1.matrix, m2, n2) ;
C1.pattern = reshape (C1.pattern, m2, n2) ;
for inplace = [false true]
C2 = GB_mex_reshape (A, m2, n2, ...
true, inplace) ;
GB_spec_compare (C1, C2, 0) ;
end
% reshape by row
C1 = A ;
if (iso)
C1.matrix (C1.pattern) = x ;
end
C1.matrix = reshape (C1.matrix', n2, m2)' ;
C1.pattern = reshape (C1.pattern', n2, m2)';
for inplace = [false true]
C2 = GB_mex_reshape (A, m2, n2, ...
false, inplace) ;
GB_spec_compare (C1, C2, 0) ;
end
end
end
if (track_coverage)
c = sum (GraphBLAS_grbcov > 0) ;
d = c - clast ;
if (d > 0)
tt = sprintf ('''%s''', type) ;
fprintf ('{%16s, %2d, %2d, %d, %d, %d, %d},', ...
tt, m, n, kd, sparsity, is_csc, iso) ;
fprintf (' ... %% (%3d, %3d)\n', d, c-cfirst) ;
end
clast = c ;
else
fprintf ('.') ;
end
% end
% end
% end
% end
% end
% end
end
fprintf ('\ntest244: all tests passed\n') ;
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