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4

Undefined reference for string constant in service

asked 2012-11-29 05:41:09 -0600

Markus Achtelik
390 ●8 ●11 ●19

updated 2012-11-29 05:49:01 -0600

Hi,

when I define a simple service, e.g.

string my_string
string CONST_STRING=some_value
---

I get an undefined reference to ...::CONST_STRING during linking. Looking at the generated header file, I noticed that CONST_STRING gets declared, but never defined. I tested the same with messages, here it works fine and I can see the definition of CONST_STRING.

The same applies for floatXX-- I guess that problem exists for every constant that can not be encoded into an enum.

Am I doing something wrong,or is this a bug in gensrv? I'm working with Fuerte

Thanks a lot for your help!

Markus

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answered 2012-11-29 23:40:19 -0600

Markus Achtelik
390 ●8 ●11 ●19

Ok, reported at https://code.ros.org/trac/ros-pkg/ticket/5587

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I think nowadays, after everything was moved to github, the ticket should be filed here.

Lorenz ( 2012-11-29 23:46:53 -0600 )edit

filed here now as well https://github.com/ros/gencpp/issues/2 . Hope it's in the right place now ;)

Markus Achtelik ( 2012-11-30 00:37:53 -0600 )edit

fixed, see https://github.com/ros/gencpp/issues/2#issuecomment-18780252. Thanks a lot, Dirk!

Markus Achtelik ( 2013-06-01 02:24:18 -0600 )edit

1

answered 2012-11-29 05:56:23 -0600

flag of Germany

31395 ●134 ●284 ●498

updated 2012-11-29 05:56:53 -0600

Looks like a bug to me, which you should report.

I can also confirm that.

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Asked: 2012-11-29 05:41:09 -0600

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Last updated: Nov 29 '12

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