Mercurial > hg > octave-nkf
view examples/code/funcdemo.cc @ 20800:7c0e10f035bd
Extend parser to accept binary constants that begin with '0b' or '0B'.
* NEWS: Announce change:
* lex.ll: Define NUMBIN to be 0[bB] followed by 0,1, or '_'.
Define NUMBER to be NUMREAL|NUMHEX|NUMBIN.
*lex.ll (looks_like_bin): New function to detect 0[bB] prefix.
*lex.ll (handle_numbe): Call looks_like_bin() and if found then convert
binary string to double.
* parser.tst: Add tests for new behavior.
author | Rik <rik@octave.org> |
---|---|
date | Fri, 09 Oct 2015 18:52:58 -0700 |
parents | 2f8500ca91d3 |
children |
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#include <octave/oct.h> #include <octave/parse.h> DEFUN_DLD (funcdemo, args, nargout, "Function Demo") { octave_value_list retval; int nargin = args.length (); if (nargin < 2) print_usage (); octave_value_list newargs; for (octave_idx_type i = nargin - 1; i > 0; i--) newargs(i-1) = args(i); if (args(0).is_function_handle () || args(0).is_inline_function ()) { octave_function *fcn = args(0).function_value (); retval = feval (fcn, newargs, nargout); } else if (args(0).is_string ()) { std::string fcn = args(0).string_value (); retval = feval (fcn, newargs, nargout); } else error ("funcdemo: INPUT must be string, inline, or function handle"); return retval; }