How to open a mat file in C?

Question

HF 2021-2-16

评论： Walter Roberson 2021-2-19

Hello, I am trying to open a mat file in C. My matfile contains only a matrix called "X(1,1:1024)".

I found the following code to open a mat file in C:

#include "mat.h"
MATFile *matOpen(const char *filename, const char *mode);

However, I am not able to find the file "mat.h" in the internet. Is there another way to load the data into the C program?

Thank you in advance!

James Tursa 2021-2-16

mat.h and the library that contains the matOpen function ship with MATLAB. Do you have MATLAB installed?

HF 2021-2-16

Yes, I have installed Matlab. I only found a header file called "math.h"

Answer 1

Aditya Patil 2021-2-19

The file is included with MATLAB installation. You might have to add it to the path where your compiler looks for header files.

Walter Roberson 2021-2-19

In particular it is in the MATLAB installation directory as extern/include/mat.h

On my system, if I were using a command line compiler, that would involve adding the option

-I/Applications/MATLAB_R2020b.app/extern/include

The -I option for (most) compilers names a top-level directory to look in to resolve #include statements.