Mercurial > octave
view scripts/general/int2str.m @ 31202:434b5a1b9498
isequal.m: Add ability to compare Java objects (bug #62930)
* isequal.m: Add elseif clause to detect Java objects and use built-in Java
"equals" method for comparison. Add BIST test for Java object comparison.
author | Rik <rik@octave.org> |
---|---|
date | Thu, 25 Aug 2022 15:35:25 -0700 |
parents | 5d3faba0342e |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 1993-2022 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/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {@var{str} =} int2str (@var{n}) ## Convert an integer (or array of integers) to a string (or a character ## array). ## ## @example ## @group ## int2str (123) ## @result{} 123 ## ## s = int2str ([1, 2, 3; 4, 5, 6]) ## @result{} s = ## 1 2 3 ## 4 5 6 ## ## whos s ## @result{} Variables in the current scope: ## Attr Name Size Bytes Class ## ==== ==== ==== ===== ===== ## s 2x7 14 char ## Total is 14 elements using 14 bytes ## @end group ## @end example ## ## This function is not very flexible. For better control over the ## results, use @code{sprintf} (@pxref{Formatted Output}). ## ## Programming Notes: ## ## Non-integers are rounded to integers before display. Only the real part ## of complex numbers is displayed. ## ## @seealso{sprintf, num2str, mat2str} ## @end deftypefn function str = int2str (n) if (nargin < 1) print_usage (); elseif (! (isnumeric (n) || islogical (n) || ischar (n))) error ("int2str: N must be a numeric, logical, or character array"); endif if (ischar (n)) str = n; return; elseif (isempty (n)) str = ""; return; endif n = round (real (n)); ## Set up a suitable format string while ignoring Inf/NaN entries nan_inf = ! isfinite (n(:)); ndgt = floor (log10 (max (abs (n(! nan_inf))))); if (isempty (ndgt) || ndgt == -Inf) ndgt = 0; # All Inf or all zero array endif ndgt += 3; if (any (nan_inf)) ndgt = max (ndgt, 5); endif ## FIXME: Integers should be masked to show only 16 significant digits fmt = sprintf ("%%%d.0f", ndgt); nd = ndims (n); nc = columns (n) * (nd - 1); # ND-arrays are expanded in columns n = permute (n, [2, 3:nd, 1]); fmt = [repmat(fmt, 1, nc), "\n"]; strtmp = sprintf (fmt, n); str = strtrim (char (ostrsplit (strtmp, "\n", true))); endfunction %!assert (int2str (123), "123") %!assert (int2str (-123), "-123") %!assert (int2str (1.2), "1") %!assert (int2str (1.6), "2") %!assert (int2str ([1, 2, 3; 4, 5, 6]), ["1 2 3";"4 5 6"]) %!assert (int2str ([]), "") %!error <Invalid call> int2str () %!error <N must be a numeric> int2str ({1})