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annotate examples/code/globaldemo.cc @ 19225:c8240a60dd01

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Add penny.mat to build system. * examples/data/penny.mat: New example data file. * examples/data/Makefile.am: Automake file for new directory of example data files. * examples/Makefile.am: Change to be just a pass-through to the subdirectories code/ and data/. * examples/@FIRfilter/FIRfilter.m, examples/@FIRfilter/FIRfilter_aggregation.m, examples/@FIRfilter/display.m, examples/@FIRfilter/module.mk, examples/@FIRfilter/subsasgn.m, examples/@FIRfilter/subsref.m, examples/@polynomial/display.m, examples/@polynomial/double.m, examples/@polynomial/end.m, examples/@polynomial/get.m, examples/@polynomial/module.mk, examples/@polynomial/mtimes.m, examples/@polynomial/numel.m, examples/@polynomial/plot.m, examples/@polynomial/polynomial.m, examples/@polynomial/polynomial_superiorto.m, examples/@polynomial/polyval.m, examples/@polynomial/roots.m, examples/@polynomial/set.m, examples/@polynomial/subsasgn.m, examples/@polynomial/subsref.m, examples/COPYING, examples/addtwomatrices.cc, examples/celldemo.cc, examples/embedded.cc, examples/fortrandemo.cc, examples/fortransub.f, examples/funcdemo.cc, examples/globaldemo.cc, examples/helloworld.cc, examples/make_int.cc, examples/mex_demo.c, examples/mycell.c, examples/myfeval.c, examples/myfevalf.f, examples/myfunc.c, examples/myhello.c, examples/mypow2.c, examples/myprop.c, examples/myset.c, examples/mysparse.c, examples/mystring.c, examples/mystruct.c, examples/oct_demo.cc, examples/oregonator.cc, examples/oregonator.m, examples/paramdemo.cc, examples/standalone.cc, examples/standalonebuiltin.cc, examples/stringdemo.cc, examples/structdemo.cc, examples/unwinddemo.cc: Move current example files to examples/code/ directory. * configure.ac: Add Makefiles in examples/code and examples/data directories. * build-aux/common.mk: Define octdatadir variable. * doc/interpreter/Makefile.am: Change location of External Code Interface examples to examples/code directory. * doc/interpreter/munge-texi.pl: Expand EXAMPLEFILE macro to examples/code directory.
author Rik <rik@octave.org>
date Tue, 19 Aug 2014 14:32:44 -0700
parents examples/globaldemo.cc@be41c30bcb44
children 2f8500ca91d3
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1 #include <octave/oct.h>
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2
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be41c30bcb44 Re-write documentation and all examples of dynamically linked functions.
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3 DEFUN_DLD (globaldemo, args, , "Global Demo")
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4 {
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5 octave_value retval;
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6 int nargin = args.length ();
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7
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8 if (nargin != 1)
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9 print_usage ();
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10 else
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11 {
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12 std::string s = args(0).string_value ();
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13 if (! error_state)
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14 {
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15 octave_value tmp = get_global_value (s, true);
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16 if (tmp.is_defined ())
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17 retval = tmp;
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18 else
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19 retval = "Global variable not found";
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20
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21 set_global_value ("a", 42.0);
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22 }
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23 }
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24 return retval;
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25 }