You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: genccodejacobian.m
    path of file: ./repos/Robotics-Toolbox/rvctools/release10.3.1/robot/@CodeGenerator
    
    the code of the file until where you have to start completion: %CODEGENERATOR.GENCCODEJACOBIAN Generate C-functions for robot jacobians
%
% cGen.genccodejacobian() generates a robot-specific C-function to compute
% the jacobians with respect to the robot base as well as the end effector.
%
% Notes::
% - Is called by CodeGenerator.genjacobian if cGen has active flag genccode or
%   genmex.
% - The generated .c and .h files are generated in the directory specified
%   by the ccodepath property of the CodeGenerator object.
%
% Author::
%  Joern Malzahn, (joern.malzahn@tu-dortmund.de)
%
% See also CodeGenerator.CodeGenerator, CodeGenerator.genccodefkine, CodeGenerator.genjacobian.

% Copyright (C) 2012-2014, by Joern Malzahn
%
% This file is part of The Robotics Toolbox for Matlab (RTB).
%
% RTB is f
    
function to compute
% the jacobians with respect to the robot base as well as the end effector.
%
% Notes::
% - Is called by CodeGenerator.genjacobian if cGen has active flag genccode or
%   genmex.
% - The generated .c and .h files are generated in the directory specified
%   by the ccodepath property of the CodeGenerator object.
%
% Author::
%  Joern Malzahn, (joern.malzahn@tu-dortmund.de)
%
% See also CodeGenerator.CodeGenerator, CodeGenerator.genccodefkine, CodeGenerator.genjacobian.

% Copyright (C) 2012-2014, by Joern Malzahn
%
% This file is part of The Robotics Toolbox for Matlab (RTB).
%
% RTB is free software: you can redistribute it and/or modify
% it under the terms of the GNU Lesser General Public License as published by
% the Free Software Foundation, either version 3 of the License, or
% (at your option) any later version.
%
% RTB is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU Lesser General Public License for more details.
%
% You should have received a copy of the GNU Leser General Public License
% along with RTB. If not, see <http://www.gnu.org/licenses/>.
%
% http://www.petercorke.com

function [] = genccodejacobian(CGen)

%% Check for existance symbolic expressions
% Load symbolics
symname = 'jacob0';
fname = fullfile(CGen.sympath,[symname,'.mat']);

if exist(fname,'file')
    tmpStruct = load(fname);
else
    error ('genmfunfkine:SymbolicsNotFound','Save symbolic expressions to disk first!')
end