Mercurial > octave
view test/for.tst @ 28592:e70c859c4bff
allow infinite limits on for loop ranges (bug #45143)
* ov.cc (octave_value::octave_value (const Range&, bool)):
If force_range is false, throw error if range is not OK.
* Range.h, Range.cc (Range::ok): New function.
(Range::numel_internal): Return one less than the maximum possible
octave_idx_type value if infinite range is detected.
(Range::init): Don't set m_limit if limit is infinite.
(Range::Range (double, double)): Likewise.
(Range::Range (double, double, double)): Likewise.
(Range::Range (double, double, octave_idx_type):
Trust supplied value of numel.
* for.tst: New tests.
* pt-eval.cc (tree_evaluator::visit_simple_for_command): Warn if range
limit is infinite.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 24 Jul 2020 01:01:35 -0400 |
| parents | bd51beb6205e |
| children | a9f1a922367b |
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######################################################################## ## ## Copyright (C) 2006-2020 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## This file is part of Octave. ## ## Octave 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. ## ## Octave 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## %!test %! for i = 1 %! __printf_assert__ ("%d", i); %! end # "end" is part of test, check not using "endfor" %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1")); %!test %! for i = 1:4 %! __printf_assert__ ("%d", i); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1234")); %!test %! for i = [1,2,3,4] %! __printf_assert__ ("%d", i); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1234")); %!test %! for i = [1,2;3,4] %! __printf_assert__ ("%d", i(1,1)); %! __printf_assert__ ("%d", i(2,1)); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1324")); %!test %! for i = I %! __printf_assert__ ("%d", imag (i)); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1")); %!test %! for i = [1,2,3,4]*I %! __printf_assert__ ("%d", imag (i)); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1234")); %!test %! for i = [1,2;3,4]*I %! __printf_assert__ ("%d", imag (i(1,1))); %! __printf_assert__ ("%d", imag (i(2,1))); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1324")); %!test %! for i = [1,2,3,4] %! if (i > 2) %! break; %! endif %! __printf_assert__ ("%d", i); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("12")); %!test %! for i = [1,2,3,4] %! if (i < 3) %! continue; %! endif %! __printf_assert__ ("%d", i); %! endfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("34")); %!test %! a = [1,3;2,4]; %! j = 0; %! for i = cat (3, a, 4 + a) %! assert (i, [1;2] + 2*j++); %! endfor %!test %! a = {1,3;2,4}; %! j = 0; %! for i = cat (3, a, cellfun (@(x) 4 + x, a, "UniformOutput", 0)) %! assert (i, {1 + 2*j; 2 + 2*j++}); %! endfor ## test parsing of single-quoted character string appearing at the ## beginning of a for loop %!test %! for i = 1:5 %! 'foo'; %! endfor %! assert (i, 5); %!test %! parfor i = 1 %! __printf_assert__ ("%d", i); %! end # "end" is part of test, check not using "endparfor" %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1")); %!test %! parfor i = 1:4 %! __printf_assert__ ("%d", i); %! endparfor %! __printf_assert__ ("\n"); %! assert (__prog_output_assert__ ("1234")); %!test <*50893> %! cnt = 0; %! for k = zeros (0,3); %! cnt++; %! endfor %! assert (cnt, 0); %! assert (k, zeros (0,3)); %!test <*50893> %! cnt = 0; %! for k = zeros (3,0); %! cnt++; %! endfor %! assert (cnt, 0); %! assert (k, zeros (3,0)); %!test <*50893> %! cnt = 0; %! for k = zeros (3,0, "uint32"); %! cnt++; %! endfor %! assert (cnt, 0); %! assert (k, zeros (3,0, "uint32")); %!test <*50893> %! cnt = 0; %! for k = cell (0,3); %! cnt++; %! endfor %! assert (cnt, 0); %! assert (k, cell (0,3)); %!test <45143> %! fail ("for i = 0:inf; break; end", "warning", %! "FOR loop limit is infinite"); %! %! fail ("for i = 0:-1:-inf; break; end", "warning", %! "FOR loop limit is infinite"); %!test <45143> %! k = 0; for i = 1:inf; if (++k > 10); break; end; end %! assert (i, 11); %! k = 0; for i = -1:-1:-inf; if (++k > 10); break; end; end %! assert (i, -11); %! k = 0; for i = 1:-inf; if (++k > 10); break; end; end %! assert (i, zeros(1,0)); %! k = 0; for i = 0:-1:inf; if (++k > 10); break; end; end %! assert (i, zeros(1,0));