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annotate examples/code/stringdemo.cc @ 20753:2f8500ca91d3

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eliminate error_state from example files * addtwomatrices.cc, celldemo.cc, embedded.cc, fortrandemo.cc, funcdemo.cc, globaldemo.cc, helloworld.cc, make_int.cc, paramdemo.cc, stringdemo.cc, structdemo.cc, unwinddemo.cc: Eliminate use of global error_state variable.
author John W. Eaton <jwe@octave.org>
date Sat, 03 Oct 2015 16:05:27 -0400
parents c8240a60dd01
children
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1 #include <octave/oct.h>
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2
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3 DEFUN_DLD (stringdemo, args, , "String Demo")
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4 {
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be41c30bcb44 Re-write documentation and all examples of dynamically linked functions.
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5 octave_value_list retval;
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6
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7 if (args.length () != 1)
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8 print_usage ();
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9
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10 charMatrix ch = args(0).char_matrix_value ();
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11
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12 retval(1) = octave_value (ch, '\''); // Single Quote String
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13
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14 octave_idx_type nr = ch.rows ();
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16 for (octave_idx_type i = 0; i < nr / 2; i++)
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17 {
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18 std::string tmp = ch.row_as_string (i);
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19
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20 ch.insert (ch.row_as_string (nr-i-1).c_str (), i, 0);
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21 ch.insert (tmp.c_str (), nr-i-1, 0);
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22 }
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24 retval(0) = octave_value (ch, '"'); // Double Quote String
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25
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26 return retval;
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27 }