I have a basic MATLAB script to read a value from a txt file, process the value (simple multiply) then output the result to a file. If I the call following from Windows cmd line, it works as expected i.e. I see the output file generated:
C:\Users\Me\Documents\MATLAB>matlab -r matlab_test -wait
If I call the following from a basic VS2013 C++ App, MATLAB opens and appears to execute the script but no output file is created:
int32_t status = system("\"C:\\Program Files\\MATLAB\\R2015a\\bin\\matlab\" -r matlab_test -wait");
Note 'status' returns 0.
The following is the MATLAB script (matlab_test.m):
fileIP = fopen('input_data.txt','r'); fileOP = fopen('output_data.txt','w');
a = fscanf( fileIP, '%d' ); b = 2; c = a * b;
fprintf( fileOP, '%d\n', c );
fclose( fileIP ); fclose( fileOP );
I am using MATLAB 2015a/64-bit.