build with g++ fails: what does error: declaration of ‘.... throw ....’ has a different exception specifier ... mean
By John Peck •
I am trying to install a "toolbox" for a laser device () and I am getting this message when I try to build it (command in section 5.2):
Building Sick LMS mex... Building with 'g++'. /home/ark3420/SICK/sicktoolbox-1.0.1/matlab/../c++/drivers/lms/sicklms-1.0/SickLMSBufferMonitor.cc :131:48: error: declaration of ‘SickToolbox::SickLMSBufferMonitor::~SickLMSBufferMonitor() throw (SickToolbox::SickThreadException)’ has a different exception specifier In file included from /home/ark3420/SICK/sicktoolbox-1.0.1/matlab/../c++/drivers/lms/sicklms-1.0/SickLMS.hh: 24:0,from /home/ark3420/SICK/sicktoolbox-1.0.1/matlab/../c++/drivers/lms/sicklms-1.0/SickLMSBufferMonitor.cc:24:0, /home/ark3420/SICK/sicktoolbox-1.0.1/matlab/../c++/drivers/lms/sicklms-1.0/SickLMSBufferMonitor.hh:44:5: error: from previous declaration ‘SickToolbox::SickLMSBufferMonitor::~SickLMSBufferMonitor() noexcept (true)’ ./build_mex: Build failed!Any clues as to what I could do to resolve this appreciated. One issue is that this toolbox was written some years ago when Ubuntu 7 was current so i suppose that might be part of the problem!
thanks in advance
2 Answers
There are double declarations for a thow of SickToolbox::SickLMSBufferMonitor::~SickLMSBufferMonitor() one in
/home/ark3420/SICK/sicktoolbox-1.0.1/matlab/../c++/drivers/lms/sicklms-1.0/SickLMS.hh - line 24
and another one in
/home/ark3420/SICK/sicktoolbox-1.0.1/matlab/../c++/drivers/lms/sicklms-1.0/SickLMSBufferMonitor.hh - line 44
open an editor to both files and check for the one that makes more sense. You can try to uncomment one declaration and see if this works. Or contact the author of the source.
10So it looks like the line:
SickLMSBufferMonitor::~SickLMSBufferMonitor( ) { }was replaced with
SickLMSBufferMonitor::~SickLMSBufferMonitor( ) throw (SickToolbox::SickThreadException) { }to resolve this problem.
