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annotate examples/code/unwinddemo.cc @ 20441:83792dd9bcc1

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Use in-place operators in m-files where possible. * scripts/audio/@audioplayer/set.m, scripts/audio/@audiorecorder/set.m, scripts/audio/mu2lin.m, scripts/elfun/cosd.m, scripts/general/del2.m, scripts/general/profexplore.m, scripts/general/quadl.m, scripts/general/rat.m, scripts/general/rotdim.m, scripts/help/get_first_help_sentence.m, scripts/help/private/__strip_html_tags__.m, scripts/image/cubehelix.m, scripts/io/textread.m, scripts/linear-algebra/duplication_matrix.m, scripts/linear-algebra/housh.m, scripts/linear-algebra/krylov.m, scripts/linear-algebra/logm.m, scripts/linear-algebra/normest.m, scripts/linear-algebra/onenormest.m, scripts/optimization/fminsearch.m, scripts/optimization/lsqnonneg.m, scripts/optimization/qp.m, scripts/plot/appearance/annotation.m, scripts/plot/appearance/axis.m, scripts/plot/appearance/legend.m, scripts/plot/appearance/specular.m, scripts/plot/draw/colorbar.m, scripts/plot/draw/hist.m, scripts/plot/draw/plotmatrix.m, scripts/plot/draw/private/__stem__.m, scripts/plot/util/__actual_axis_position__.m, scripts/plot/util/__gnuplot_drawnow__.m, scripts/plot/util/findobj.m, scripts/plot/util/print.m, scripts/plot/util/private/__go_draw_axes__.m, scripts/plot/util/private/__print_parse_opts__.m, scripts/plot/util/rotate.m, scripts/polynomial/pchip.m, scripts/polynomial/polyaffine.m, scripts/polynomial/polyder.m, scripts/polynomial/private/__splinefit__.m, scripts/polynomial/residue.m, scripts/signal/arch_fit.m, scripts/signal/arch_rnd.m, scripts/signal/bartlett.m, scripts/signal/blackman.m, scripts/signal/freqz.m, scripts/signal/hamming.m, scripts/signal/hanning.m, scripts/signal/spectral_adf.m, scripts/signal/spectral_xdf.m, scripts/signal/stft.m, scripts/sparse/bicgstab.m, scripts/sparse/cgs.m, scripts/sparse/private/__sprand_impl__.m, scripts/sparse/qmr.m, scripts/sparse/sprandsym.m, scripts/sparse/svds.m, scripts/specfun/legendre.m, scripts/special-matrix/gallery.m, scripts/statistics/base/gls.m, scripts/statistics/models/logistic_regression.m, scripts/statistics/tests/kruskal_wallis_test.m, scripts/statistics/tests/manova.m, scripts/statistics/tests/wilcoxon_test.m, scripts/time/datevec.m: Use in-place operators in m-files where possible.
author Rik <rik@octave.org>
date Tue, 26 May 2015 21:07:42 -0700
parents 95c533ed464b
children 2f8500ca91d3
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1 #include <octave/oct.h>
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2 #include <octave/unwind-prot.h>
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3
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4 void
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5 my_err_handler (const char *fmt, ...)
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6 {
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7 // Do nothing!!
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8 }
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9
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10 void
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11 my_err_with_id_handler (const char *id, const char *fmt, ...)
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12 {
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13 // Do nothing!!
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14 }
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16 DEFUN_DLD (unwinddemo, args, nargout, "Unwind Demo")
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17 {
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18 octave_value retval;
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19 int nargin = args.length ();
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20
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21 if (nargin < 2)
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22 print_usage ();
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23 else
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24 {
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25 NDArray a = args(0).array_value ();
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26 NDArray b = args(1).array_value ();
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27
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28 if (! error_state)
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29 {
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30 // Declare unwind_protect frame which lasts as long as
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31 // the variable frame has scope.
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32 unwind_protect frame;
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33 frame.add_fcn (set_liboctave_warning_handler,
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34 current_liboctave_warning_handler);
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35
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36 frame.add_fcn (set_liboctave_warning_with_id_handler,
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37 current_liboctave_warning_with_id_handler);
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38
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39 set_liboctave_warning_handler (my_err_handler);
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40 set_liboctave_warning_with_id_handler (my_err_with_id_handler);
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41
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42 retval = octave_value (quotient (a, b));
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43 }
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44 }
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45
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46 return retval;
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47 }