How to include libraries for sfunction?

Hello,

I need to get run a C sfunction some libraries like stdio.h and stdlib.h.

I tried to copy that libraries in the current path. But that libraries call other libraries and I get errors compilling (mex) the C sfunction.

How can I include all libraries which i need? I am a Beginner Thanks a lot

Answer 1

[Nick Sarnie]

Hi Mario,

The easiest way to include custom libraries in C S-Functions is to use the S-Function Builder block, which is located in the Library Browser under Simulink>User-Defined Functions. On the Libraries tab of the S-Function Builder UI, you can specify the custom headers and library files to include.

[Mario Frischmann]

Hi Nick, thank you very much for your reply. I allready did that. But I need the libaries also in the same directory as the sfunction is, do I? So I need the file (for example: stdio.h) in this directory. But stdio.h has some other includes in his file and when i want to mex the sfucntion i get errors that that includes can't be found.

I hope you can help me.

Thanks for your patience

[Nick Sarnie]

Hi Mario,

You shouldn't need to copy all of the system library headers like stdio.h to the local directory. I recommend using the angle brackets, < and >, to specify system library headers. You can use

#include <stdio.h>

in the "Includes" section, which will search the standard system header locations. If it is a custom library header, you can store it in the current directory and use quotes instead:

#include "myHeader.h"

For custom library files, you can specify the location to the files in the "Library/Object/Source Files" section.

[Mario Frischmann]

Hi Nick,

thank you for your help. It worked perfectly and I unterstand it now.

Can I also include libraries which are stored on the Raspberry Pi 3?

Like for example: #include "/home/pi/wiringPi/wiringPi/wiringPi.c" ??

Thanks in advance