have_feature_isequaln

HAVE_FEATURE_ISEQUALN  Detect availability/version info for ISEQUALN

   Feature detection function implementing 'isequaln' tag for HAVE_FEATURE
   to detect support for ISEQUALN function.

   See also HAVE_FEATURE, ISEQUALN.

0001 function [TorF, vstr, rdate] = have_feature_isequaln()
0002 %HAVE_FEATURE_ISEQUALN  Detect availability/version info for ISEQUALN
0003 %
0004 %   Feature detection function implementing 'isequaln' tag for HAVE_FEATURE
0005 %   to detect support for ISEQUALN function.
0006 %
0007 %   See also HAVE_FEATURE, ISEQUALN.
0008 
0009 %   MP-Opt-Model
0010 %   Copyright (c) 2004-2020, Power Systems Engineering Research Center (PSERC)
0011 %   by Ray Zimmerman, PSERC Cornell
0012 %
0013 %   This file is part of MP-Opt-Model.
0014 %   Covered by the 3-clause BSD License (see LICENSE file for details).
0015 %   See https://github.com/MATPOWER/mp-opt-model for more info.
0016 
0017 TorF = exist('isequaln') ~= 0;
0018 if TorF
0019     if have_feature('matlab')
0020         %% introduced after 7.10 (R2010a) and by 7.14 (R2012a)
0021         v = have_feature('matlab', 'all');
0022     else
0023         %% introduced in Octave 4.4 (not in 4.2.2)
0024         v = have_feature('octave', 'all');
0025     end
0026     vstr  = v.vstr;
0027     rdate = v.date;
0028 else
0029     vstr = '';
0030     rdate = '';
0031 end