Calling a c library function from within ctypes python

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP












0















Using nm, I get these functions back from my library:



0000000000004bc0 T __Z13generator_sind
0000000000004120 T __Z13librador_exitv
0000000000004080 T __Z13librador_initv
0000000000004b70 T __Z13round_to_log2d
0000000000004c10 T __Z16generator_squared
0000000000004c40 T __Z18generator_sawtoothd


I want to call the function __Z13librador_initv using ctypes in python... but using print(libraryname.__Z13librador_initv) is not getting me anywhere. Anyone know how to do this successfully? Do I need to use the hex number?



It appears to import the actual library ok using this code:



from ctypes import *
testlib = cdll.LoadLibrary("librador.1.0.0.dylib")









share|improve this question













migrated from unix.stackexchange.com Feb 2 at 18:49


This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.













  • 1





    Do you have the source code for librador? The issues you're running are due to C++ name mangling... The easiest way to address that would be by adapting the sources.

    – filbranden
    Feb 1 at 16:34















0















Using nm, I get these functions back from my library:



0000000000004bc0 T __Z13generator_sind
0000000000004120 T __Z13librador_exitv
0000000000004080 T __Z13librador_initv
0000000000004b70 T __Z13round_to_log2d
0000000000004c10 T __Z16generator_squared
0000000000004c40 T __Z18generator_sawtoothd


I want to call the function __Z13librador_initv using ctypes in python... but using print(libraryname.__Z13librador_initv) is not getting me anywhere. Anyone know how to do this successfully? Do I need to use the hex number?



It appears to import the actual library ok using this code:



from ctypes import *
testlib = cdll.LoadLibrary("librador.1.0.0.dylib")









share|improve this question













migrated from unix.stackexchange.com Feb 2 at 18:49


This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.













  • 1





    Do you have the source code for librador? The issues you're running are due to C++ name mangling... The easiest way to address that would be by adapting the sources.

    – filbranden
    Feb 1 at 16:34













0












0








0








Using nm, I get these functions back from my library:



0000000000004bc0 T __Z13generator_sind
0000000000004120 T __Z13librador_exitv
0000000000004080 T __Z13librador_initv
0000000000004b70 T __Z13round_to_log2d
0000000000004c10 T __Z16generator_squared
0000000000004c40 T __Z18generator_sawtoothd


I want to call the function __Z13librador_initv using ctypes in python... but using print(libraryname.__Z13librador_initv) is not getting me anywhere. Anyone know how to do this successfully? Do I need to use the hex number?



It appears to import the actual library ok using this code:



from ctypes import *
testlib = cdll.LoadLibrary("librador.1.0.0.dylib")









share|improve this question














Using nm, I get these functions back from my library:



0000000000004bc0 T __Z13generator_sind
0000000000004120 T __Z13librador_exitv
0000000000004080 T __Z13librador_initv
0000000000004b70 T __Z13round_to_log2d
0000000000004c10 T __Z16generator_squared
0000000000004c40 T __Z18generator_sawtoothd


I want to call the function __Z13librador_initv using ctypes in python... but using print(libraryname.__Z13librador_initv) is not getting me anywhere. Anyone know how to do this successfully? Do I need to use the hex number?



It appears to import the actual library ok using this code:



from ctypes import *
testlib = cdll.LoadLibrary("librador.1.0.0.dylib")






python c function






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Feb 1 at 7:30







Amariah Olson











migrated from unix.stackexchange.com Feb 2 at 18:49


This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.









migrated from unix.stackexchange.com Feb 2 at 18:49


This question came from our site for users of Linux, FreeBSD and other Un*x-like operating systems.









  • 1





    Do you have the source code for librador? The issues you're running are due to C++ name mangling... The easiest way to address that would be by adapting the sources.

    – filbranden
    Feb 1 at 16:34












  • 1





    Do you have the source code for librador? The issues you're running are due to C++ name mangling... The easiest way to address that would be by adapting the sources.

    – filbranden
    Feb 1 at 16:34







1




1





Do you have the source code for librador? The issues you're running are due to C++ name mangling... The easiest way to address that would be by adapting the sources.

– filbranden
Feb 1 at 16:34





Do you have the source code for librador? The issues you're running are due to C++ name mangling... The easiest way to address that would be by adapting the sources.

– filbranden
Feb 1 at 16:34












0






active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













draft saved

draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54496389%2fcalling-a-c-library-function-from-within-ctypes-python%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown
























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes















draft saved

draft discarded
















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f54496389%2fcalling-a-c-library-function-from-within-ctypes-python%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown






Popular posts from this blog

How to check contact read email or not when send email to Individual?

Displaying single band from multi-band raster using QGIS

How many registers does an x86_64 CPU actually have?