I have written a MATLAB 2019a function that I want to export via codegen. I want to run this C function on my iPhone. Here is how I am exporting the function via codegen:
When I export it, a very large portion of my .h files have this include header:
#include "omp.h"
XCode states that 'omp.h' file not found.
This is odd to me, as when I've exported on older Matlab versions never was omp.h file included. Looking around the net, there are several questions that talk about this missing file, such as :
Xcode C++ omp.h file not found
How to include omp.h in OS X?
However, the authors of this question seem to advertently want it. I suspect that I am just running the MATLAB codegen incorrectly, thus requiring it's use.
Questions:
Should I export differently via codegen to allow my code to work on an iPhone?
If I exported correctly, where would I want to fetch the omp.h file from in order to run the exported code on an iPhone?
I ended up finding an option to disable it, by selecting no in the image below, and it removed the code from having omp.h
Related
I have inherited development of an iPhone app that was originally created overseas. The original developers are no longer available for questions. The app is currently available on the app store. So I assume the zip file that I received of the project is current and complete.
When I first open the project in xcode and do a build, I get hundreds of errors. They are all the same basic error. There are hundreds of .h files with one line:
../../../FBSDKCoreKit/FBSDKCoreKit/FBSDKCoreKit/Internal/ServerConfiguration/FBSDKServerConfiguration.h
I get the error "expected identifier or '(' on the first character of this line in every file.
I tried changing the line to:
#include "/../../../xxxxxxxxx"
and that worked. But as I said, there are several hundred of these files in the project. If this was a running app 'supposedly' from this source code, why should I need to go change hundreds of files and add #include to each line?
This project uses an old version of swift, and I had to go all the way back to xCode 7 to find a development environment that would support it. Is the .h syntax in these files some sort of deprecated syntax that stems from an even older version of xCode? Can some seasoned iPhone app developer tell me about this particular .h file syntax of including another .h file (and why it's failing for me now)?
Basically, if I need to change all of the .h files, then so be it. But I'm more than a bit concerned making this drastic a change to code that supposedly recently built a running app.
Suggestion? Enlightenments? Thanks.
Jerry
The "syntax" you described -- just a single line containing a file name (with a relative path)
../../../FBSDKCoreKit/FBSDKCoreKit/FBSDKCoreKit/Internal/ServerConfiguration/FBSDKServerConfiguration.h
has never ever been correct C/C++/Objective C (preprocessor) syntax. Either is some strange, proprietary custom preprocessing is running, or it's just garbage.
Using
#include "/../.."
is also nonsense: If you start a path with /, you start at the root directory, so navigating up with .. will lead you to root again, and xxxxxxxxx is expected exactly there in the root directory.
This was to the syntax. The semantics is hard to tell without the project.
Maybe it might just help if you completely remove those strange header files,
or comment out the erronous lines
or you need to adjust your include paths in the project to help Xcode find the files
I'm trying to see how does certain ios apps executable files look like, what i do is export the app files to my computer using iexplorer, i then took a look at the info.plist to see the executable files, after that i opened them with my notepad to use the UTF - 8 Encoding, but here how does things look like in both files-in the opening of both of the files i see english words that are expressing directories:
sample of file 1:
‹"Ò.(?!ÑNÓU£C°îXjøe”Ú5O•½°{^ÿÝŒEÌrôðæ$#[3,ÔÜ£æ»8I˜hGw!*aHÒQ•tœl²þ„™AÍçßÍ憴³)è:cÌ7H5æß-eFç¯î&Ø\n,$Ë$y»¥ÁB^6ÙP; i(q,AÅ
âðð·'©=Ÿa"v!PBÛÚ"¤¬‹Wj·;ËsÌŽÚâZüŠ–ÇüÉ;ÜA´sI«¸Üæ¿÷ ›‚‰.êøLž
sample of file 2:
ßꪧgö«húDªÝn¡± CÅÁ¹ â=؉ˆ4|®b¡ JeW-ɯðó¦xgýgeéÀXœH7ßJÉ" 3‡rÜ6ÒI_ ƒr cdÅá¸|íð¼l;Töl±”›MÛ˜±o/ôÇô#¬RS;Y¥!ÜzGò“vî©6ØR¡‚>Ì0m5
ŸzrPÐiDMÊ|Þ·9âëYß,p؃‹£x—.àN5îüÝrjœG]Æ·
ironically in the second file i can see a huge block of english words absolutely fine, but i dont get it why i don't see the whole file very good? i have also tried to open the files in an objective-c compiler after i have made them .m but that again was useless???
The executable files contain machine langage (binary) and cannot easily be read or understand by human. The word you still see in english are probably comments left by compiler that are not executed.
Trying to open those files in a compiler won't work because if the compiler role is to convert objective-c in machine langage, he's not able to convert the other way. For a same set of machine instructions, there are many ways to code it in objective-c.
The only way to get a source-code from a binary executable is to do some retro-engineering. It is done by converting the binary executable in assembly langage (it's a very low level langage but with understandable syntax) and then trying to reproduce the instructions with a higher-level langage such as objective-C.
I'm having this annoying problem.
I'm doing an ios app in objective-c++. I'm coding the backbone of the app in c++ and the UI in objective-c, because the app is most likely going to be ported to Android (maybe also wp) at a later point. The setup works just fine... That is, until I want to include some c/c++ libraries.
The app is going to do a lot of requests to web services and therefore I've decided to include the libcurl library.
I have downloaded the library, configured it and "made" it and it is installing just fine in /usr/local/lib and /usr/local/include. I have added the libcurl.a/libcurl.dylib to the project, but here comes the problem:
When I want to include it in the .h or .cpp (or .mm) file it says that the file is missing fx.
#include "curl/curl.hpp" // -or similar according to library, always returns "file not found"
The intellisense is also not suggesting the files/libraries when typing. I have also tried with the libcurlpp and Poco libraries which all installs just fine and are added to the project just fine (via Build phases -> Link Binaries with Libraries), but is not recognized in the code.
I have also build libcurl specific for ios via this link:
http://home.comcast.net/~seiryu/libcurl-ios.html
and again everything is working regarding building and installing the library, but again I can't include it in the code...
I really hope it's just because I'm retarded at this and that it is some sort of setting I have missed or don't know about. Searched all over the web now and tried different solutions, all with the same result. I must be including the libraries wrong in some way...?
P.S. I've also tried adding the OS provided libcurl.4.dylib, with same result. Can't include it in the code.
When compiling a OpenCV 2.3 project in Builder I get multiple errors starting with "_fm_atan2l is not a member of 'std'" and continuing with other math related errors in that form. I also get "Multiple declaration of '_Ctraits::_Isnan(double)' and other similar errors. This happens after I simply include the OpenCV header files and thus seems unrelated to anything I have done in the application itself.
The only file I have included so far is "cv.h" in OpenCV's include directory. Am I doing it wrong already or is there maybe something else I have to set up first?
You can download simple project combining 2.3.2 and c++ builder xe2 from my site:
http://www.compvision.ru/forum/index.php?showtopic=763
There are fixed headers for builder, and lib converter in archive.
There are also .lib files in archive, but it'll be better if you make them by yourself from original .lib files contained in your opencv distribution using LibConverter.exe utility.
And there is some strange thing: some dll files need to be renamed to something like .dl or .d. Compiled program will prompt you about it.
you can correct OCV atan2 issue with bcc32, including fastmath in std namespace (for more info see: https://forums.embarcadero.com/message.jspa?messageID=363384 [^]).... but more other issues are there after ...
Until now I'm unable to build OCV 2.3.1 with CBuilder XE2 :(
Okey, this is not a core programming question; it is more of a question regarding cgns (CFD general notational system) API.
I've exported a grid/mesh file from ANSYS Fluent (which was first created in Gambit 2.46), and I wrote a very simple Fortran program to open and close it (doing nothing else). To check the file is not corrupt I plotted it in Tecplot.
So, when I compiled using gfortran with the mentioned cgns and ran the program I got this error (as part of cg_error_exit_f())
ADF_Database_Open:File does not exist or is not a HDF5 file
Here is the program
program cavity
include "/usr/include/cgnslib_f.h"
call cg_open_f("Cavity.cgns",CG_MODE_READ,index_file,ier)
!check for error if so exit
if (ier .ne. CG_OK) then
call cg_error_exit_f()
end if
write(*,*)"I kind of opened the file?"
call cg_close_f(index_file,ier)
stop
end program cavity
I'm able to write both structured and unstructured grids in cgns format, without any problem.
I suspect the cgns library I'm using(version 2.5.5 packaged in Fedora 15 and Scientific linux 6.1) is built to support only HDF5, while the exported grid file is written in ADF format.
Any ideas to circumvent this or perhaps adding ADF? Which by the way is not packaged in both the distributions. Any other grid generator which is compatible with cgns version 2.5.5?
I hope I was clear. Any further info required, I would provide.
There is so much that could've gone wrong in here, and I'm afraid you didn't exactly narrow the problem down.
You said you exported a file from Fluent (what kind of a file is it? Be sure!). cg_error_exit_f() gave you an error listed. I'm assuming you have the source of the mentioned routines? In the program you include a cgnslib_f.h file - what's in it? I'm assumming the program compiled without errors of any kind, making this a file format question, not a fortran question.
Again, verify what kind of file Fluent produced.
When I ran into this situation, I discovered the following tools:
hdf2adf
adf2hdf
They are in the cgns-convert package on Ubuntu and are probably available for your distribution as well.