This function is to know matlab version information.
Usage: [major, minor, revision, build] = vb_matlab_version;
[comparative_result] = vb_matlab_version('==', '7.0.1');
[comparative_result] = vb_matlab_version('7.0.1');
----- Format1
To get a version number.
[major, minor, revision, build] = vb_matlab_version;
[IN]
nothing
[OUT]
major : MATLAB major version
minor : MATLAB minor version
revision : MATLAB revision
build : MATLAB build number
----- Format2
To Compare with matlab and specified version.
result = vb_matlab_version('==', '7.0.1');
[IN]
comparative_operator : '>' or '<' or '>=' or '<=' or '==' or '~='
ver_str : version string separated by '.'
ex.'7', '7.0', '7.0.1', '7.0.1.24704'
[OUT]
comparative_result : true or false.
Examples
If the Matlab version is 7.1.0.83, and the user supplied version is '7':
status = vb_matlab_version('==', '7');
returns status == true : major revision numbers are the same.
If the Matlab version is 7.1.0.83, and the user supplied version is '7.1':
status = vb_matlab_version('==', '7.1');
returns status == true : major and minor revision numbers are the same.
If the Matlab version is 7.1.0.83, and the user supplied version is '7.1':
status = vb_matlab_version('>', '7.1');
returns status == false : major and minor revision is later for matlab.
---- Format3
To Compare with matlab and specified version.
result = vb_matlab_version('7.0.1')
(This is same with vb_matlab_version('==', '7.0.1');)
[IN]
ver_str : version string separated by '.'
ex.'7', '7.0', '7.0.1', '7.0.1.24704'
[OUT]
comparative_result : true or false.
See also:
MATLAB embedded function 'version'
Copyright (C) 2011, ATR All Rights Reserved.
License : New BSD License(see VBMEG_LICENSE.txt)0001 function [varargout] = vb_matlab_version(varargin) 0002 % This function is to know matlab version information. 0003 % Usage: [major, minor, revision, build] = vb_matlab_version; 0004 % [comparative_result] = vb_matlab_version('==', '7.0.1'); 0005 % [comparative_result] = vb_matlab_version('7.0.1'); 0006 % 0007 % ----- Format1 0008 % To get a version number. 0009 % 0010 % [major, minor, revision, build] = vb_matlab_version; 0011 % [IN] 0012 % nothing 0013 % [OUT] 0014 % major : MATLAB major version 0015 % minor : MATLAB minor version 0016 % revision : MATLAB revision 0017 % build : MATLAB build number 0018 % 0019 % ----- Format2 0020 % To Compare with matlab and specified version. 0021 % result = vb_matlab_version('==', '7.0.1'); 0022 % [IN] 0023 % comparative_operator : '>' or '<' or '>=' or '<=' or '==' or '~=' 0024 % ver_str : version string separated by '.' 0025 % ex.'7', '7.0', '7.0.1', '7.0.1.24704' 0026 % [OUT] 0027 % comparative_result : true or false. 0028 % 0029 % Examples 0030 % If the Matlab version is 7.1.0.83, and the user supplied version is '7': 0031 % status = vb_matlab_version('==', '7'); 0032 % returns status == true : major revision numbers are the same. 0033 % 0034 % If the Matlab version is 7.1.0.83, and the user supplied version is '7.1': 0035 % status = vb_matlab_version('==', '7.1'); 0036 % returns status == true : major and minor revision numbers are the same. 0037 % 0038 % If the Matlab version is 7.1.0.83, and the user supplied version is '7.1': 0039 % status = vb_matlab_version('>', '7.1'); 0040 % returns status == false : major and minor revision is later for matlab. 0041 % 0042 % ---- Format3 0043 % To Compare with matlab and specified version. 0044 % result = vb_matlab_version('7.0.1') 0045 % (This is same with vb_matlab_version('==', '7.0.1');) 0046 % [IN] 0047 % ver_str : version string separated by '.' 0048 % ex.'7', '7.0', '7.0.1', '7.0.1.24704' 0049 % [OUT] 0050 % comparative_result : true or false. 0051 % 0052 % See also: 0053 % MATLAB embedded function 'version' 0054 % 0055 % Copyright (C) 2011, ATR All Rights Reserved. 0056 % License : New BSD License(see VBMEG_LICENSE.txt) 0057 0058 SEP = '.'; % version separator 0059 0060 switch(nargin) 0061 case 0 % [major, minor, revision, build] = vb_matlab_version() 0062 [ret] = sscanf(strtok(version), ['%d' SEP], 4); 0063 varargout{1} = ret(1); 0064 varargout{2} = ret(2); 0065 varargout{3} = ret(3); 0066 varargout{4} = ret(4); 0067 case 1 % [comparative_result] = vb_matlab_version('7.0.1'); 0068 input_str = varargin{1}; 0069 if ~ischar(input_str) 0070 error('version string should be string.'); 0071 end 0072 [result] = compare_version('==', input_str, SEP); 0073 varargout{1} = result; 0074 case 2 % [comparative_result] = vb_matlab_version('>=', '7.0.1') 0075 comparative_operator = varargin{1}; 0076 input_str = varargin{2}; 0077 if ~ischar(input_str) 0078 error('version string should be string.'); 0079 end 0080 [result] = compare_version(comparative_operator, input_str, SEP); 0081 varargout{1} = result; 0082 end 0083 0084 function [result] = compare_version(comparative_operator, ver_str, sep) 0085 0086 if numel(findstr(ver_str, sep)) > 3 0087 error('Input version string has too many fields. Only major.minor.release.build fields are supported.'); 0088 end 0089 0090 result = true; 0091 0092 [m_ver] = sscanf(strtok(version), ['%d' sep], 4); 0093 [c_ver, count, errmsg, nextindex] = sscanf(ver_str, ['%d' sep], 4); 0094 if ~isempty(errmsg) 0095 error(['Input version string is invalid at ' num2str(nextindex) ': ' ver_str]); 0096 end 0097 0098 % Compare 0099 % m_ver(1) m_ver(2) m_ver(3) m_ver(4) 0100 % | | | | 0101 % c_ver(1) c_ver(2) c_ver(3) c_ver(4) 0102 % ------------> compare direction 0103 % k==1 k==2 k==3 k==4 0104 for k=1:count 0105 if (m_ver(k) == c_ver(k)) && (k ~= count) 0106 % 最上位桁から下位方向へ向かって1桁ずつチェック 0107 % 同値の場合は、ひとつ下の桁に判断を先送りする。 0108 % 先送りして最下位桁まで行った場合は、 0109 % 同値でも下の比較演算子により比較結果を出力. 0110 continue; 0111 else 0112 % 比較演算子による比較. 0113 result = eval(['m_ver(k)' comparative_operator 'c_ver(k)']); 0114 return; 0115 end 0116 end