Call .c function in working directory

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Evan Patton
Evan Patton 2021-6-26
评论： Evan Patton 2021-6-26
Hello!
I am in way over my head trying to call a .c function in a running script.
The code is about 20 years old now and I am updating it to run on the current 2021 platform on a Mac.
Basically in this working folder I have 2 files "code.c" and "code.dll" and I amd trying to use the them in the context
z=code(x,y);
at the top of the code.c is a header:
#include <math.h>
#include "mex.h"
Ive tried simply calling the function like the following after installing code compiler:
mex code.c
Which then pops the error message of needing a compiler. I really dont want to search to find one that works with a Mac at a low storage space.
Is there any way around this?
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Walter Roberson
Walter Roberson 2021-6-26
Mac does not use .dll files. Mac uses .dylib (dynamic link library) and .a (static link library) files; also dynamically loadable bundles might be .so (see https://docstore.mik.ua/orelly/unix3/mac/ch05_03.htm )

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回答（1 个）

Jan
Jan 2021-6-26
编辑：Jan 2021-6-26
Please post a copy of the error message, not a rough paraphrasation.
"needing a compiler" seems to mean, that you did not install a compiler, which is recognized by Matlab. I guess that " current 2021 platform on a Mac" means Matlab R2021a, but what does "Mac at a low storage space" exactly mean? You need XCode 11 or 12, see: https://www.mathworks.com/support/requirements/supported-compilers.html
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Evan Patton
Evan Patton 2021-6-26
Jan, Walter,
thank you both for your help! I ended up downloading xcoder for my mac (I freed up some storage space and was able to just barely fit it in). I am still getting this error message.
loadlibrary('code.dll','code.c')
gives the error message:
Error using loadlibrary
Supported compiler not found. For options, visit https://www.mathworks.com/support/compilers.
And then another command I tried:
mex code.c
gave the same exact error
Do I need to somehow initialize matlab to automatically recognize xcoder? or is there something else needed in the command.
Thank you so muh
Evan Patton
Evan Patton 2021-6-26
update: all I had to do was open xcoder..... I am sorry if there was any confusion

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