/usr/share/octave/packages/linear-algebra-2.2.0/@blksparse/plus.m is in octave-linear-algebra 2.2.0-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | ## Copyright (C) 2010 VZLU Prague
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
function s = plus (s1, s2)
if (isa (s1, "blksparse") && isa (s2, "blksparse"))
## Conformance check.
siz1 = s1.siz;
bsiz1 = s1.bsiz;
siz2 = s2.siz;
bsiz2 = s2.bsiz;
if (bsiz1(2) != bsiz2(1))
gripe_nonconformant (bsiz1, bsiz2, "block sizes");
elseif (siz1(2) != siz2(1))
gripe_nonconformant (bsiz1.*siz1, bsiz2.*siz2);
endif
## Stupid & simple.
s = blksparse ([s1.i; s2.i], [s1.j; s2.j], cat (3, s1.sv, s2.sv), siz1(1), siz1(2));
else
error ("blksparse: only blksparse + blksparse implemented");
endif
endfunction
function gripe_nonconformant (s1, s2, what = "arguments")
error ("Octave:nonconformant-args", ...
"nonconformant %s (op1 is %dx%d, op2 is %dx%d)", what, s1, s2);
endfunction
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