Mercurial > octave-nkf
annotate doc/interpreter/bugs.txi @ 19627:446c46af4b42 stable
strip trailing whitespace from most source files
* Makefile.am, NEWS, build-aux/common.mk, configure.ac,
doc/Makefile.am, doc/doxyhtml/Makefile.am,
doc/interpreter/Makefile.am, doc/interpreter/arith.txi,
doc/interpreter/audio.txi, doc/interpreter/basics.txi,
doc/interpreter/bugs.txi, doc/interpreter/container.txi,
doc/interpreter/cp-idx.txi, doc/interpreter/data.txi,
doc/interpreter/debug.txi, doc/interpreter/diagperm.txi,
doc/interpreter/diffeq.txi, doc/interpreter/doccheck/README,
doc/interpreter/doccheck/spellcheck, doc/interpreter/emacs.txi,
doc/interpreter/errors.txi, doc/interpreter/eval.txi,
doc/interpreter/expr.txi, doc/interpreter/external.txi,
doc/interpreter/fn-idx.txi, doc/interpreter/func.txi,
doc/interpreter/geometry.txi, doc/interpreter/geometryimages.m,
doc/interpreter/gpl.txi, doc/interpreter/grammar.txi,
doc/interpreter/gui.txi, doc/interpreter/image.txi,
doc/interpreter/install.txi, doc/interpreter/interp.txi,
doc/interpreter/interpimages.m, doc/interpreter/intro.txi,
doc/interpreter/io.txi, doc/interpreter/java.txi,
doc/interpreter/linalg.txi, doc/interpreter/macros.texi,
doc/interpreter/matrix.txi, doc/interpreter/munge-texi.pl,
doc/interpreter/nonlin.txi, doc/interpreter/numbers.txi,
doc/interpreter/obsolete.txi, doc/interpreter/octave-config.1,
doc/interpreter/octave.texi, doc/interpreter/oop.txi,
doc/interpreter/op-idx.txi, doc/interpreter/optim.txi,
doc/interpreter/package.txi, doc/interpreter/plot.txi,
doc/interpreter/poly.txi, doc/interpreter/preface.txi,
doc/interpreter/quad.txi, doc/interpreter/set.txi,
doc/interpreter/signal.txi, doc/interpreter/sparse.txi,
doc/interpreter/sparseimages.m, doc/interpreter/splineimages.m,
doc/interpreter/stats.txi, doc/interpreter/stmt.txi,
doc/interpreter/strings.txi, doc/interpreter/system.txi,
doc/interpreter/testfun.txi, doc/interpreter/tips.txi,
doc/interpreter/var.txi, doc/interpreter/vectorize.txi,
doc/liboctave/Makefile.am, doc/liboctave/array.texi,
doc/liboctave/bugs.texi, doc/liboctave/cp-idx.texi,
doc/liboctave/dae.texi, doc/liboctave/diffeq.texi,
doc/liboctave/error.texi, doc/liboctave/factor.texi,
doc/liboctave/fn-idx.texi, doc/liboctave/gpl.texi,
doc/liboctave/install.texi, doc/liboctave/intro.texi,
doc/liboctave/liboctave.texi, doc/liboctave/matvec.texi,
doc/liboctave/nleqn.texi, doc/liboctave/nlfunc.texi,
doc/liboctave/ode.texi, doc/liboctave/optim.texi,
doc/liboctave/preface.texi, doc/liboctave/quad.texi,
doc/liboctave/range.texi, doc/refcard/Makefile.am,
doc/refcard/refcard.tex, etc/HACKING, etc/NEWS.1, etc/NEWS.2,
etc/NEWS.3, etc/OLD-ChangeLogs/ChangeLog,
etc/OLD-ChangeLogs/doc-ChangeLog,
etc/OLD-ChangeLogs/scripts-ChangeLog,
etc/OLD-ChangeLogs/src-ChangeLog, etc/OLD-ChangeLogs/test-ChangeLog,
etc/PROJECTS, etc/README.Cygwin, etc/README.MacOS, etc/README.MinGW,
etc/README.gnuplot, etc/gdbinit, etc/icons/Makefile.am,
examples/@polynomial/end.m, examples/@polynomial/subsasgn.m,
examples/Makefile.am, examples/standalonebuiltin.cc,
libgui/Makefile.am, libgui/qterminal/libqterminal/README,
libgui/qterminal/libqterminal/unix/BlockArray.cpp,
libgui/qterminal/libqterminal/unix/BlockArray.h,
libgui/qterminal/libqterminal/unix/Character.h,
libgui/qterminal/libqterminal/unix/CharacterColor.h,
libgui/qterminal/libqterminal/unix/Emulation.cpp,
libgui/qterminal/libqterminal/unix/Emulation.h,
libgui/qterminal/libqterminal/unix/Filter.cpp,
libgui/qterminal/libqterminal/unix/Filter.h,
libgui/qterminal/libqterminal/unix/History.cpp,
libgui/qterminal/libqterminal/unix/History.h,
libgui/qterminal/libqterminal/unix/KeyboardTranslator.cpp,
libgui/qterminal/libqterminal/unix/KeyboardTranslator.h,
libgui/qterminal/libqterminal/unix/LineFont.h,
libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp,
libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.h,
libgui/qterminal/libqterminal/unix/Screen.cpp,
libgui/qterminal/libqterminal/unix/Screen.h,
libgui/qterminal/libqterminal/unix/ScreenWindow.cpp,
libgui/qterminal/libqterminal/unix/ScreenWindow.h,
libgui/qterminal/libqterminal/unix/TerminalCharacterDecoder.cpp,
libgui/qterminal/libqterminal/unix/TerminalCharacterDecoder.h,
libgui/qterminal/libqterminal/unix/Vt102Emulation.h,
libgui/qterminal/libqterminal/win32/QWinTerminalImpl.cpp,
libgui/qterminal/qterminal/main.cpp,
libgui/src/m-editor/file-editor-tab.cc, libgui/src/octave-gui.cc,
libgui/src/octave-qt-link.cc, libinterp/corefcn/data.cc,
libinterp/corefcn/defun-int.h, libinterp/corefcn/det.cc,
libinterp/corefcn/gl2ps-renderer.cc, libinterp/corefcn/graphics.cc,
libinterp/corefcn/graphics.in.h, libinterp/corefcn/ls-mat5.cc,
libinterp/corefcn/lu.cc, libinterp/corefcn/oct-tex-parser.yy,
libinterp/corefcn/oct-tex-symbols.in, libinterp/corefcn/quadcc.cc,
libinterp/corefcn/zfstream.cc, libinterp/dldfcn/__eigs__.cc,
libinterp/dldfcn/__voronoi__.cc, libinterp/gendoc.pl,
libinterp/genprops.awk, libinterp/mk-errno-list, libinterp/mk-pkg-add,
libinterp/mkbuiltins, libinterp/mkdefs, libinterp/mkdocs,
libinterp/mkops, libinterp/octave-value/ov-java.cc,
libinterp/parse-tree/lex.ll, libinterp/parse-tree/oct-parse.in.yy,
libinterp/parse-tree/octave.gperf, liboctave/Makefile.am,
liboctave/array/Array.cc, liboctave/array/module.mk,
liboctave/cruft/daspk/datv.f, liboctave/cruft/daspk/dcnst0.f,
liboctave/cruft/daspk/dcnstr.f, liboctave/cruft/daspk/ddasic.f,
liboctave/cruft/daspk/ddasid.f, liboctave/cruft/daspk/ddasik.f,
liboctave/cruft/daspk/ddaspk.f, liboctave/cruft/daspk/ddstp.f,
liboctave/cruft/daspk/ddwnrm.f, liboctave/cruft/daspk/dfnrmd.f,
liboctave/cruft/daspk/dfnrmk.f, liboctave/cruft/daspk/dhels.f,
liboctave/cruft/daspk/dheqr.f, liboctave/cruft/daspk/dinvwt.f,
liboctave/cruft/daspk/dlinsd.f, liboctave/cruft/daspk/dlinsk.f,
liboctave/cruft/daspk/dmatd.f, liboctave/cruft/daspk/dnedd.f,
liboctave/cruft/daspk/dnedk.f, liboctave/cruft/daspk/dnsd.f,
liboctave/cruft/daspk/dnsid.f, liboctave/cruft/daspk/dnsik.f,
liboctave/cruft/daspk/dnsk.f, liboctave/cruft/daspk/dorth.f,
liboctave/cruft/daspk/dslvd.f, liboctave/cruft/daspk/dslvk.f,
liboctave/cruft/daspk/dspigm.f, liboctave/cruft/daspk/dyypnw.f,
liboctave/cruft/dasrt/ddasrt.f, liboctave/cruft/dasrt/drchek.f,
liboctave/cruft/dassl/ddaslv.f, liboctave/cruft/dassl/ddassl.f,
liboctave/cruft/misc/blaswrap.c, liboctave/cruft/misc/module.mk,
liboctave/cruft/odepack/cfode.f, liboctave/cruft/odepack/dlsode.f,
liboctave/cruft/odepack/ewset.f, liboctave/cruft/odepack/intdy.f,
liboctave/cruft/odepack/prepj.f, liboctave/cruft/odepack/sintdy.f,
liboctave/cruft/odepack/slsode.f, liboctave/cruft/odepack/solsy.f,
liboctave/cruft/odepack/ssolsy.f, liboctave/cruft/odepack/stode.f,
liboctave/cruft/odepack/vnorm.f, liboctave/cruft/ranlib/Basegen.doc,
liboctave/cruft/ranlib/README, liboctave/cruft/ranlib/genbet.f,
liboctave/cruft/ranlib/genexp.f, liboctave/cruft/ranlib/gennch.f,
liboctave/cruft/ranlib/gennf.f, liboctave/cruft/ranlib/gennor.f,
liboctave/cruft/ranlib/getsd.f, liboctave/cruft/ranlib/initgn.f,
liboctave/cruft/ranlib/phrtsd.f, liboctave/cruft/ranlib/randlib.fdoc,
liboctave/cruft/ranlib/setsd.f, liboctave/cruft/ranlib/tstgmn.for,
liboctave/cruft/ranlib/tstmid.for, liboctave/cruft/slatec-fn/atanh.f,
liboctave/cruft/slatec-fn/datanh.f,
liboctave/cruft/slatec-fn/xgmainc.f,
liboctave/cruft/slatec-fn/xsgmainc.f, liboctave/numeric/module.mk,
liboctave/operators/mk-ops.awk, liboctave/operators/mx-ops,
liboctave/operators/sparse-mk-ops.awk,
liboctave/operators/sparse-mx-ops, liboctave/operators/vx-ops,
liboctave/util/module.mk, run-octave.in, scripts/@ftp/ftp.m,
scripts/audio/wavread.m, scripts/deprecated/java_convert_matrix.m,
scripts/deprecated/java_debug.m, scripts/deprecated/java_invoke.m,
scripts/deprecated/java_new.m,
scripts/deprecated/java_unsigned_conversion.m,
scripts/deprecated/javafields.m, scripts/deprecated/javamethods.m,
scripts/deprecated/shell_cmd.m, scripts/general/accumarray.m,
scripts/general/display.m, scripts/general/fieldnames.m,
scripts/general/interp1.m, scripts/general/interp2.m,
scripts/general/interp3.m, scripts/general/isa.m,
scripts/general/methods.m, scripts/general/sortrows.m,
scripts/geometry/convhull.m, scripts/geometry/delaunay.m,
scripts/geometry/delaunay3.m, scripts/geometry/delaunayn.m,
scripts/geometry/griddata.m, scripts/geometry/griddatan.m,
scripts/geometry/voronoi.m, scripts/geometry/voronoin.m,
scripts/gui/guihandles.m, scripts/gui/inputdlg.m,
scripts/gui/listdlg.m, scripts/gui/msgbox.m, scripts/gui/questdlg.m,
scripts/gui/uigetfile.m, scripts/gui/waitbar.m, scripts/gui/warndlg.m,
scripts/help/doc.m, scripts/help/help.m, scripts/help/type.m,
scripts/image/bone.m, scripts/image/cmpermute.m,
scripts/image/cmunique.m, scripts/image/colorcube.m,
scripts/image/colormap.m, scripts/image/contrast.m,
scripts/image/gray2ind.m, scripts/image/image.m,
scripts/image/imshow.m, scripts/image/ind2gray.m, scripts/image/jet.m,
scripts/image/rgb2ntsc.m, scripts/image/spinmap.m,
scripts/io/importdata.m, scripts/io/strread.m, scripts/io/textread.m,
scripts/io/textscan.m, scripts/java/java_get.m,
scripts/java/java_set.m, scripts/java/javaaddpath.m,
scripts/java/javaclasspath.m, scripts/java/javamem.m,
scripts/linear-algebra/linsolve.m, scripts/linear-algebra/qzhess.m,
scripts/miscellaneous/debug.m, scripts/miscellaneous/desktop.m,
scripts/miscellaneous/dir.m, scripts/miscellaneous/dos.m,
scripts/miscellaneous/edit.m, scripts/miscellaneous/fact.m,
scripts/miscellaneous/getappdata.m, scripts/miscellaneous/inputname.m,
scripts/miscellaneous/license.m, scripts/miscellaneous/ls_command.m,
scripts/miscellaneous/run.m, scripts/miscellaneous/setfield.m,
scripts/miscellaneous/unix.m, scripts/miscellaneous/ver.m,
scripts/mk-pkg-add, scripts/mkdoc.pl,
scripts/optimization/fminsearch.m, scripts/optimization/optimset.m,
scripts/optimization/sqp.m, scripts/pkg/pkg.m,
scripts/pkg/private/create_pkgadddel.m,
scripts/pkg/private/fix_depends.m, scripts/pkg/private/install.m,
scripts/plot/appearance/axis.m, scripts/plot/appearance/box.m,
scripts/plot/appearance/clabel.m, scripts/plot/appearance/daspect.m,
scripts/plot/appearance/datetick.m, scripts/plot/appearance/grid.m,
scripts/plot/appearance/legend.m, scripts/plot/appearance/orient.m,
scripts/plot/appearance/shading.m, scripts/plot/appearance/text.m,
scripts/plot/appearance/title.m, scripts/plot/appearance/xlabel.m,
scripts/plot/appearance/ylabel.m, scripts/plot/appearance/zlabel.m,
scripts/plot/draw/area.m, scripts/plot/draw/bar.m,
scripts/plot/draw/barh.m, scripts/plot/draw/colorbar.m,
scripts/plot/draw/contour.m, scripts/plot/draw/contour3.m,
scripts/plot/draw/contourf.m, scripts/plot/draw/ellipsoid.m,
scripts/plot/draw/errorbar.m, scripts/plot/draw/ezcontour.m,
scripts/plot/draw/ezcontourf.m, scripts/plot/draw/ezmesh.m,
scripts/plot/draw/ezpolar.m, scripts/plot/draw/fill.m,
scripts/plot/draw/fplot.m, scripts/plot/draw/hist.m,
scripts/plot/draw/meshc.m, scripts/plot/draw/meshz.m,
scripts/plot/draw/pareto.m, scripts/plot/draw/patch.m,
scripts/plot/draw/peaks.m, scripts/plot/draw/pie.m,
scripts/plot/draw/pie3.m, scripts/plot/draw/plot.m,
scripts/plot/draw/plotyy.m, scripts/plot/draw/private/__bar__.m,
scripts/plot/draw/private/__contour__.m,
scripts/plot/draw/private/__errplot__.m,
scripts/plot/draw/private/__ezplot__.m,
scripts/plot/draw/private/__patch__.m,
scripts/plot/draw/private/__stem__.m, scripts/plot/draw/rectangle.m,
scripts/plot/draw/ribbon.m, scripts/plot/draw/rose.m,
scripts/plot/draw/scatter.m, scripts/plot/draw/scatter3.m,
scripts/plot/draw/semilogx.m, scripts/plot/draw/shrinkfaces.m,
scripts/plot/draw/sombrero.m, scripts/plot/draw/sphere.m,
scripts/plot/draw/stairs.m, scripts/plot/draw/stem.m,
scripts/plot/draw/stemleaf.m, scripts/plot/draw/surf.m,
scripts/plot/draw/surface.m, scripts/plot/draw/surfc.m,
scripts/plot/draw/surfl.m, scripts/plot/draw/surfnorm.m,
scripts/plot/draw/tetramesh.m, scripts/plot/draw/trimesh.m,
scripts/plot/draw/triplot.m, scripts/plot/draw/trisurf.m,
scripts/plot/util/__gnuplot_drawnow__.m,
scripts/plot/util/__plt_get_axis_arg__.m, scripts/plot/util/axes.m,
scripts/plot/util/clf.m, scripts/plot/util/copyobj.m,
scripts/plot/util/figure.m, scripts/plot/util/gcbo.m,
scripts/plot/util/graphics_toolkit.m, scripts/plot/util/hggroup.m,
scripts/plot/util/meshgrid.m, scripts/plot/util/newplot.m,
scripts/plot/util/print.m,
scripts/plot/util/private/__add_default_menu__.m,
scripts/plot/util/private/__fltk_print__.m,
scripts/plot/util/private/__gnuplot_print__.m,
scripts/plot/util/private/__print_parse_opts__.m,
scripts/plot/util/refreshdata.m, scripts/plot/util/subplot.m,
scripts/polynomial/conv.m, scripts/polynomial/poly.m,
scripts/polynomial/polyeig.m, scripts/polynomial/polyfit.m,
scripts/polynomial/polyval.m,
scripts/polynomial/private/__splinefit__.m,
scripts/polynomial/spline.m, scripts/prefs/prefdir.m,
scripts/prefs/preferences.m, scripts/prefs/private/prefsfile.m,
scripts/prefs/rmpref.m, scripts/signal/freqz.m,
scripts/signal/module.mk, scripts/sparse/eigs.m, scripts/sparse/pcg.m,
scripts/sparse/private/__sprand_impl__.m, scripts/sparse/sprand.m,
scripts/sparse/sprandn.m, scripts/sparse/spy.m, scripts/sparse/svds.m,
scripts/specfun/expint.m, scripts/specfun/factor.m,
scripts/special-matrix/gallery.m, scripts/special-matrix/hankel.m,
scripts/special-matrix/toeplitz.m, scripts/startup/inputrc,
scripts/statistics/base/kurtosis.m, scripts/statistics/base/moment.m,
scripts/statistics/base/qqplot.m, scripts/statistics/base/var.m,
scripts/statistics/distributions/betarnd.m,
scripts/statistics/distributions/binoinv.m,
scripts/statistics/distributions/binopdf.m,
scripts/statistics/distributions/binornd.m,
scripts/statistics/distributions/cauchy_rnd.m,
scripts/statistics/distributions/chi2rnd.m,
scripts/statistics/distributions/discrete_pdf.m,
scripts/statistics/distributions/discrete_rnd.m,
scripts/statistics/distributions/empirical_rnd.m,
scripts/statistics/distributions/exprnd.m,
scripts/statistics/distributions/frnd.m,
scripts/statistics/distributions/gamrnd.m,
scripts/statistics/distributions/geornd.m,
scripts/statistics/distributions/hygernd.m,
scripts/statistics/distributions/kolmogorov_smirnov_cdf.m,
scripts/statistics/distributions/laplace_cdf.m,
scripts/statistics/distributions/laplace_pdf.m,
scripts/statistics/distributions/logistic_cdf.m,
scripts/statistics/distributions/logistic_pdf.m,
scripts/statistics/distributions/lognrnd.m,
scripts/statistics/distributions/nbincdf.m,
scripts/statistics/distributions/nbininv.m,
scripts/statistics/distributions/nbinpdf.m,
scripts/statistics/distributions/nbinrnd.m,
scripts/statistics/distributions/normrnd.m,
scripts/statistics/distributions/poissinv.m,
scripts/statistics/distributions/poissrnd.m,
scripts/statistics/distributions/tinv.m,
scripts/statistics/distributions/trnd.m,
scripts/statistics/distributions/unidcdf.m,
scripts/statistics/distributions/unidpdf.m,
scripts/statistics/distributions/unidrnd.m,
scripts/statistics/distributions/unifrnd.m,
scripts/statistics/distributions/wblrnd.m,
scripts/statistics/models/module.mk,
scripts/statistics/tests/kruskal_wallis_test.m,
scripts/strings/base2dec.m, scripts/strings/deblank.m,
scripts/strings/dec2base.m, scripts/strings/dec2bin.m,
scripts/strings/dec2hex.m, scripts/strings/mat2str.m,
scripts/strings/ostrsplit.m, scripts/strings/regexptranslate.m,
scripts/strings/str2num.m, scripts/strings/strcat.m,
scripts/strings/strjoin.m, scripts/strings/strsplit.m,
scripts/strings/strtok.m, scripts/strings/strtrim.m,
scripts/strings/strtrunc.m, scripts/strings/substr.m,
scripts/testfun/__run_test_suite__.m, scripts/testfun/speed.m,
scripts/testfun/test.m, scripts/time/asctime.m,
scripts/time/datenum.m, scripts/time/datevec.m,
scripts/time/weekday.m, src/Makefile.am, test/Makefile.am,
test/build-bc-overload-tests.sh, test/build-sparse-tests.sh,
test/jit.tst, test/line-continue.tst: Strip trailing whitespace.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 20 Jan 2015 08:26:57 -0500 |
| parents | d63878346099 |
| children | 4197fc428c7d |
| rev | line source |
|---|---|
|
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1 @c Copyright (C) 1996-2013 John W. Eaton |
| 7018 | 2 @c |
| 3 @c This file is part of Octave. | |
| 4 @c | |
| 5 @c Octave is free software; you can redistribute it and/or modify it | |
| 6 @c under the terms of the GNU General Public License as published by the | |
| 7 @c Free Software Foundation; either version 3 of the License, or (at | |
| 8 @c your option) any later version. | |
|
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9 @c |
| 7018 | 10 @c Octave is distributed in the hope that it will be useful, but WITHOUT |
| 11 @c ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 @c FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 @c for more details. | |
|
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14 @c |
| 7018 | 15 @c You should have received a copy of the GNU General Public License |
| 16 @c along with Octave; see the file COPYING. If not, see | |
| 17 @c <http://www.gnu.org/licenses/>. | |
| 3294 | 18 |
| 7018 | 19 @c The text of this file appears in the file BUGS in the Octave |
| 20 @c distribution, as well as in the Octave manual. | |
| 3294 | 21 |
| 22 @ifclear BUGSONLY | |
| 4167 | 23 @node Trouble |
| 3294 | 24 @appendix Known Causes of Trouble |
| 25 @end ifclear | |
| 26 | |
| 27 @ifset BUGSONLY | |
| 28 | |
| 29 This file documents known bugs in Octave and describes where and how to | |
| 30 report any bugs that you may find. | |
| 31 | |
| 6778 | 32 Copyright (C) 1996, 1997, 2007 John W. Eaton. You may copy, distribute, and |
| 3294 | 33 modify it freely as long as you preserve this copyright notice and |
| 34 permission notice. | |
| 35 | |
| 4167 | 36 @node Trouble |
| 3294 | 37 @chapter Known Causes of Trouble with Octave |
| 38 @end ifset | |
| 39 | |
| 40 @cindex bugs, known | |
| 41 @cindex installation trouble | |
| 42 @cindex known causes of trouble | |
| 43 @cindex troubleshooting | |
| 44 | |
| 45 This section describes known problems that affect users of Octave. Most | |
| 46 of these are not Octave bugs per se---if they were, we would fix them. | |
| 47 But the result for a user may be like the result of a bug. | |
| 48 | |
| 49 Some of these problems are due to bugs in other software, some are | |
| 50 missing features that are too much work to add, and some are places | |
| 51 where people's opinions differ as to what is best. | |
| 52 | |
| 53 @menu | |
| 54 * Actual Bugs:: Bugs we will fix later. | |
|
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55 * Reporting Bugs:: |
|
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56 * Service:: |
| 3294 | 57 @end menu |
| 58 | |
| 4167 | 59 @node Actual Bugs |
| 3294 | 60 @appendixsec Actual Bugs We Haven't Fixed Yet |
| 61 | |
| 62 @itemize @bullet | |
| 63 @item | |
| 64 Output that comes directly from Fortran functions is not sent through | |
| 65 the pager and may appear out of sequence with other output that is sent | |
| 66 through the pager. One way to avoid this is to force pending output to | |
| 67 be flushed before calling a function that will produce output from | |
| 68 within Fortran functions. To do this, use the command | |
| 69 | |
| 70 @example | |
| 71 fflush (stdout) | |
| 72 @end example | |
| 73 | |
| 74 Another possible workaround is to use the command | |
| 75 | |
| 76 @example | |
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77 page_screen_output (false); |
| 3294 | 78 @end example |
| 79 | |
| 80 @noindent | |
| 81 to turn the pager off. | |
| 82 @end itemize | |
| 83 | |
| 84 A list of ideas for future enhancements is distributed with Octave. See | |
| 85 the file @file{PROJECTS} in the top level directory in the source | |
| 86 distribution. | |
| 87 | |
| 4167 | 88 @node Reporting Bugs |
| 3294 | 89 @appendixsec Reporting Bugs |
| 90 @cindex bugs | |
| 91 @cindex reporting bugs | |
| 92 | |
| 93 Your bug reports play an essential role in making Octave reliable. | |
| 94 | |
| 95 When you encounter a problem, the first thing to do is to see if it is | |
| 96 already known. @xref{Trouble}. If it isn't known, then you should | |
| 97 report the problem. | |
| 98 | |
| 99 Reporting a bug may help you by bringing a solution to your problem, or | |
| 100 it may not. In any case, the principal function of a bug report is | |
| 101 to help the entire community by making the next version of Octave work | |
| 102 better. Bug reports are your contribution to the maintenance of Octave. | |
| 103 | |
| 104 In order for a bug report to serve its purpose, you must include the | |
| 105 information that makes it possible to fix the bug. | |
| 106 | |
| 107 @menu | |
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108 * Bug Criteria:: |
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109 * Bug Tracker:: Where to submit your bug report. |
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110 * Bug Reporting:: How to report a bug effectively. |
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111 * Sending Patches:: How to send a patch for Octave. |
| 3294 | 112 @end menu |
| 113 | |
| 4167 | 114 @node Bug Criteria |
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115 @appendixsubsec Have You Found a Bug? |
| 3294 | 116 @cindex bug criteria |
| 117 | |
| 118 If you are not sure whether you have found a bug, here are some guidelines: | |
| 119 | |
| 120 @itemize @bullet | |
| 121 @cindex fatal signal | |
| 122 @cindex core dump | |
| 123 @item | |
| 124 If Octave gets a fatal signal, for any input whatever, that is | |
| 125 a bug. Reliable interpreters never crash. | |
| 126 | |
| 127 @cindex incorrect output | |
| 128 @cindex incorrect results | |
| 129 @cindex results, incorrect | |
| 130 @cindex answers, incorrect | |
| 131 @cindex erroneous results | |
| 132 @cindex wrong answers | |
| 133 @item | |
| 134 If Octave produces incorrect results, for any input whatever, | |
| 135 that is a bug. | |
| 136 | |
| 137 @cindex undefined behavior | |
| 138 @cindex undefined function value | |
| 139 @item | |
| 140 Some output may appear to be incorrect when it is in fact due to a | |
| 141 program whose behavior is undefined, which happened by chance to give | |
| 142 the desired results on another system. For example, the range operator | |
| 143 may produce different results because of differences in the way floating | |
| 144 point arithmetic is handled on various systems. | |
| 145 | |
| 146 @cindex erroneous messages | |
| 147 @cindex incorrect error messages | |
| 148 @cindex error messages, incorrect | |
| 149 @item | |
| 150 If Octave produces an error message for valid input, that is a bug. | |
| 151 | |
| 152 @cindex invalid input | |
| 153 @item | |
| 154 If Octave does not produce an error message for invalid input, that is | |
| 155 a bug. However, you should note that your idea of ``invalid input'' | |
| 156 might be my idea of ``an extension'' or ``support for traditional | |
| 157 practice''. | |
| 158 | |
| 159 @cindex improving Octave | |
| 160 @cindex suggestions | |
| 161 @item | |
| 162 If you are an experienced user of programs like Octave, your suggestions | |
| 163 for improvement are welcome in any case. | |
| 164 @end itemize | |
| 165 | |
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166 @node Bug Tracker |
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167 @appendixsubsec Where to Report Bugs |
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168 @cindex bug tracker |
| 3294 | 169 @cindex reporting bugs |
| 170 @cindex bugs, reporting | |
| 171 | |
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172 To report a bug in Octave, submit a bug report to the Octave bug tracker |
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173 @url{http://bugs.octave.org}. |
| 3294 | 174 |
| 175 @strong{Do not send bug reports to @samp{help-octave}}. Most users of | |
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176 Octave do not want to receive bug reports. |
| 3294 | 177 |
| 4167 | 178 @node Bug Reporting |
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179 @appendixsubsec How to Report Bugs |
| 3294 | 180 @cindex bugs, reporting |
| 181 | |
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182 Submit bug reports for Octave to the Octave bug tracker |
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183 @url{http://bugs.octave.org}. |
| 3294 | 184 |
| 185 The fundamental principle of reporting bugs usefully is this: | |
| 186 @strong{report all the facts}. If you are not sure whether to state a | |
| 187 fact or leave it out, state it! | |
| 188 | |
| 189 Often people omit facts because they think they know what causes the | |
| 190 problem and they conclude that some details don't matter. Thus, you might | |
| 191 assume that the name of the variable you use in an example does not matter. | |
| 192 Well, probably it doesn't, but one cannot be sure. Perhaps the bug is a | |
| 193 stray memory reference which happens to fetch from the location where that | |
| 194 name is stored in memory; perhaps, if the name were different, the contents | |
| 195 of that location would fool the interpreter into doing the right thing | |
| 196 despite the bug. Play it safe and give a specific, complete example. | |
| 197 | |
| 198 Keep in mind that the purpose of a bug report is to enable someone to | |
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199 fix the bug if it is not known. Always write your bug reports on |
| 3294 | 200 the assumption that the bug is not known. |
| 201 | |
| 202 Sometimes people give a few sketchy facts and ask, ``Does this ring a | |
| 203 bell?'' This cannot help us fix a bug. It is better to send a complete | |
| 204 bug report to begin with. | |
| 205 | |
| 206 Try to make your bug report self-contained. If we have to ask you for | |
| 207 more information, it is best if you include all the previous information | |
| 208 in your response, as well as the information that was missing. | |
| 209 | |
| 210 To enable someone to investigate the bug, you should include all these | |
| 211 things: | |
| 212 | |
| 213 @itemize @bullet | |
| 214 @item | |
| 215 The version of Octave. You can get this by noting the version number | |
| 216 that is printed when Octave starts, or running it with the @samp{-v} | |
| 217 option. | |
| 218 | |
| 219 @item | |
| 220 A complete input file that will reproduce the bug. | |
| 221 | |
| 222 A single statement may not be enough of an example---the bug might | |
| 223 depend on other details that are missing from the single statement where | |
| 224 the error finally occurs. | |
| 225 | |
| 226 @item | |
| 227 The command arguments you gave Octave to execute that example | |
| 228 and observe the bug. To guarantee you won't omit something important, | |
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229 list all the options. |
| 3294 | 230 |
| 231 If we were to try to guess the arguments, we would probably guess wrong | |
| 232 and then we would not encounter the bug. | |
| 233 | |
| 234 @item | |
| 235 The type of machine you are using, and the operating system name and | |
| 236 version number. | |
| 237 | |
| 238 @item | |
| 239 The command-line arguments you gave to the @code{configure} command when | |
| 240 you installed the interpreter. | |
| 241 | |
| 242 @item | |
| 243 A complete list of any modifications you have made to the interpreter | |
| 244 source. | |
| 245 | |
| 246 Be precise about these changes---show a context diff for them. | |
| 247 | |
| 248 @item | |
| 249 Details of any other deviations from the standard procedure for installing | |
| 250 Octave. | |
| 251 | |
| 252 @cindex incorrect output | |
| 253 @cindex incorrect results | |
| 254 @cindex results, incorrect | |
| 255 @cindex answers, incorrect | |
| 256 @cindex erroneous results | |
| 257 @cindex wrong answers | |
| 258 @item | |
| 259 A description of what behavior you observe that you believe is | |
| 260 incorrect. For example, "The interpreter gets a fatal signal," or, "The | |
| 261 output produced at line 208 is incorrect." | |
| 262 | |
| 263 Of course, if the bug is that the interpreter gets a fatal signal, then | |
| 264 one can't miss it. But if the bug is incorrect output, we might not | |
| 265 notice unless it is glaringly wrong. | |
| 266 | |
| 267 Even if the problem you experience is a fatal signal, you should still | |
| 268 say so explicitly. Suppose something strange is going on, such as, your | |
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269 copy of the interpreter is out of sync, or you have encountered a bug |
| 3294 | 270 in the C library on your system. Your copy might crash and the copy |
| 271 here would not. If you said to expect a crash, then when the | |
| 272 interpreter here fails to crash, we would know that the bug was not | |
| 273 happening. If you don't say to expect a crash, then we would not know | |
| 274 whether the bug was happening. We would not be able to draw any | |
| 275 conclusion from our observations. | |
| 276 | |
| 277 Often the observed symptom is incorrect output when your program is run. | |
| 278 Unfortunately, this is not enough information unless the program is | |
| 279 short and simple. It is very helpful if you can include an explanation | |
| 280 of the expected output, and why the actual output is incorrect. | |
| 281 | |
| 282 @item | |
| 283 If you wish to suggest changes to the Octave source, send them as | |
| 284 context diffs. If you even discuss something in the Octave source, | |
| 285 refer to it by context, not by line number, because the line numbers in | |
| 286 the development sources probably won't match those in your sources. | |
| 287 @end itemize | |
| 288 | |
| 289 Here are some things that are not necessary: | |
| 290 | |
| 291 @itemize @bullet | |
| 292 @cindex bugs, investigating | |
| 293 @item | |
| 294 A description of the envelope of the bug. | |
| 295 | |
| 296 Often people who encounter a bug spend a lot of time investigating which | |
| 297 changes to the input file will make the bug go away and which changes | |
| 298 will not affect it. Such information is usually not necessary to enable | |
| 299 us to fix bugs in Octave, but if you can find a simpler example to | |
| 300 report @emph{instead} of the original one, that is a convenience. | |
| 301 Errors in the output will be easier to spot, running under the debugger | |
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302 will take less time, etc. Most Octave bugs involve just one function, so |
| 3294 | 303 the most straightforward way to simplify an example is to delete all the |
| 304 function definitions except the one in which the bug occurs. | |
| 305 | |
| 306 However, simplification is not vital; if you don't want to do | |
| 307 this, report the bug anyway and send the entire test case you | |
| 308 used. | |
| 309 | |
| 310 @item | |
| 311 A patch for the bug. Patches can be helpful, but if you find a bug, you | |
| 312 should report it, even if you cannot send a fix for the problem. | |
| 313 @end itemize | |
| 314 | |
| 4167 | 315 @node Sending Patches |
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316 @appendixsubsec Sending Patches for Octave |
| 3294 | 317 @cindex improving Octave |
| 318 @cindex diffs, submitting | |
| 319 @cindex patches, submitting | |
| 320 @cindex submitting diffs | |
| 321 @cindex submitting patches | |
| 322 | |
| 323 If you would like to write bug fixes or improvements for Octave, that is | |
| 324 very helpful. When you send your changes, please follow these | |
| 325 guidelines to avoid causing extra work for us in studying the patches. | |
| 326 | |
| 327 If you don't follow these guidelines, your information might still be | |
| 328 useful, but using it will take extra work. Maintaining Octave is a lot | |
| 329 of work in the best of circumstances, and we can't keep up unless you do | |
| 330 your best to help. | |
| 331 | |
| 332 @itemize @bullet | |
| 333 @item | |
| 334 Send an explanation with your changes of what problem they fix or what | |
| 335 improvement they bring about. For a bug fix, just include a copy of the | |
| 336 bug report, and explain why the change fixes the bug. | |
| 337 | |
| 338 @item | |
| 339 Always include a proper bug report for the problem you think you have | |
| 340 fixed. We need to convince ourselves that the change is right before | |
| 341 installing it. Even if it is right, we might have trouble judging it if | |
| 342 we don't have a way to reproduce the problem. | |
| 343 | |
| 344 @item | |
| 345 Include all the comments that are appropriate to help people reading the | |
| 346 source in the future understand why this change was needed. | |
| 347 | |
| 348 @item | |
| 349 Don't mix together changes made for different reasons. | |
| 350 Send them @emph{individually}. | |
| 351 | |
| 352 If you make two changes for separate reasons, then we might not want to | |
| 353 install them both. We might want to install just one. | |
| 354 | |
| 355 @item | |
| 356 Use @samp{diff -c} to make your diffs. Diffs without context are hard | |
| 357 for us to install reliably. More than that, they make it hard for us to | |
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358 study the diffs to decide whether we want to install them. Unified diff |
| 3294 | 359 format is better than contextless diffs, but not as easy to read as |
| 360 @samp{-c} format. | |
| 361 | |
| 362 If you have GNU diff, use @samp{diff -cp}, which shows the name of the | |
| 363 function that each change occurs in. | |
| 364 | |
| 365 @item | |
| 366 Write the change log entries for your changes. | |
| 367 | |
| 368 Read the @file{ChangeLog} file to see what sorts of information to put | |
| 369 in, and to learn the style that we use. The purpose of the change log | |
| 370 is to show people where to find what was changed. So you need to be | |
| 371 specific about what functions you changed; in large functions, it's | |
| 372 often helpful to indicate where within the function the change was made. | |
| 373 | |
| 374 On the other hand, once you have shown people where to find the change, | |
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375 you need not explain its purpose. Thus, if you add a new function, all |
| 3294 | 376 you need to say about it is that it is new. If you feel that the |
| 377 purpose needs explaining, it probably does---but the explanation will be | |
| 378 much more useful if you put it in comments in the code. | |
| 379 | |
| 380 If you would like your name to appear in the header line for who made | |
| 381 the change, send us the header line. | |
| 382 @end itemize | |
| 383 | |
| 4167 | 384 @node Service |
| 3294 | 385 @appendixsec How To Get Help with Octave |
| 386 @cindex help, where to find | |
| 387 | |
| 5041 | 388 The mailing list @email{help@@octave.org} exists for the discussion of |
| 389 matters related to using and installing Octave. If would like to join | |
| 390 the discussion, please send a short note to | |
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391 @email{help-request@@octave.org}. |
| 3294 | 392 |
| 393 @strong{Please do not} send requests to be added or removed from the | |
| 394 mailing list, or other administrative trivia to the list itself. | |
| 395 | |
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396 If you think you have found a bug in Octave or in the installation |
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397 procedure, however, you should submit a complete bug report to |
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398 the Octave bug tracker at @url{http://bugs.octave.org}. |
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399 But before you submit a bug report, please read |
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400 @url{http://www.octave.org/bugs.html} to learn how to submit a useful |
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401 bug report. |