MATLAB: Is MATLAB 7.0.4 (R14SP2) unable to recognize the files, when I use the COPYFILE command in the script

addpathchangecopyfileMATLABnotificationpathrelativetype

I run a script, myfile.m, which contains the following code:
FullPathTempDir = tempname; 
[temp_dir temp_file] = fileparts(FullPathTempDir); 
mkdir(FullPathTempDir); 
destinationFile = [temp_file,'.m']; 
origPath = addpath(FullPathTempDir); 
copyfile('hSampleDisp.m',fullfile(FullPathTempDir,destinationFile)); 
type(temp_file);
I receive the following error :
 ??? Error using ==> type
 tp103239 is a directory.
 Error in ==> myfile at 7
 type(temp_file);

Best Answer

This bug has been fixed in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:
This has been verified as a bug in MATLAB 7.0.4(R14SP2) in the way COPYFILE notifies MATLAB about the changes made to a destination directory.
The followings are some workarounds to resolve the issue:
1. Using an absolute path name:
Use an absolute path name as an input to functions(TYPE in this case) accessing the destination directory as follows:
FullPathTempDir = tempname; 
[temp_dir temp_file] = fileparts(FullPathTempDir); 
mkdir(FullPathTempDir); 
destinationFile = [temp_file,'.m']; 
origPath = addpath(FullPathTempDir); 
copyfile('hSampleDisp.m',fullfile(FullPathTempDir,destinationFile)); 
type(fullfile(FullPathTempDir,destinationFile));
2. Use WHICH or EXIST on the path of the destination directory as follows:
FullPathTempDir = tempname; 
[temp_dir temp_file] = fileparts(FullPathTempDir); 
mkdir(FullPathTempDir); 
destinationFile = [temp_file,'.m']; 
origPath = addpath(FullPathTempDir); 
copyfile('hSampleDisp.m',fullfile(FullPathTempDir,destinationFile)); 
which temp_file
type(temp_file);
3. CD to the directory, in which the file is located, before accessing the file.
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