Re-write documentation and all examples of dynamically linked functions. * doc/interpreter/dynamic.txi: deleted. * doc/interpreter/external.txi: Renamed from dynamic.txi. Rewrote or added much information about dynamically linked functions. * doc/interpreter/Makefile.am: Changed dynamic.txi to external.txi in build system. * doc/interpreter/data.txi, doc/interpreter/intro.txi, doc/interpreter/octave.texi, doc/interpreter/sparse.txi: Changed dynamic.txi to external.txi in cross-references. * doc/interpreter/doccheck/aspell-octave.en.pws: Added new words from external.txi to Octave dictionary. * examples/firstmexdemo.c: deleted. * examples/mex_demo.c: Renamed from firstmexdemo.c. Added many more comments to code. * examples/hello.cc: deleted. * examples/oct_demo.cc: Renamed from hello.cc. Added many more comments to code. * examples/Makefile.am: Changed build system to use mex_demo.c and oct_demo.cc. * examples/addtwomatrices.cc, examples/celldemo.cc, examples/embedded.cc, examples/fortdemo.cc, examples/funcdemo.cc, examples/globaldemo.cc, examples/helloworld.cc, examples/mycell.c, examples/myfeval.c, 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/paramdemo.cc, examples/standalone.cc, examples/stringdemo.cc, examples/structdemo.cc, examples/unwinddemo.cc: Use Octave coding conventions for code. Fixed all compilation errors and warnings.

#include "mex.h"

void
mexFunction (int nlhs, mxArray* plhs[],
             int nrhs, const mxArray* prhs[])
{
  mwSize n;
  mwIndex i;

  if (nrhs != 1 || ! mxIsCell (prhs[0]))
    mexErrMsgTxt ("ARG1 must be a cell");

  n = mxGetNumberOfElements (prhs[0]);
  n = (n > nlhs ? nlhs : n);
  
  for (i = 0; i < n; i++)
    plhs[i] = mxDuplicateArray (mxGetCell (prhs[0], i));
}