Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Wed, 17 Nov 2010 08:25:42 -0800

When I build for octave with EPICS_HOST_ARCH=linux-x86_64
(Linux apex4.als 2.6.18-194.17.4.el5xen #1 SMP Mon Oct 25 16:36:31 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux)
I get some warnings -- reaching the end of a non-void function sounds like it might be a real issue. I have no idea what the final warning is about.

mkoctfile --mex -DmexAtExit=atexit -v -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Linux -DEPICS_DLL_NO -L/usr/local/epics/R3.14.12/base/lib/linux-x86_64 -ldbStaticHost -lCom -lca mca.cpp MCAError.cpp Channel.cpp -o O.linux-x86_64/mca.mex
g++ -c -DH5_USE_16_API -fPIC -I/usr/include/octave-3.0.5 -I/usr/include/octave-3.0.5/octave -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -I. -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Linux -DmexAtExit=atexit -DEPICS_DLL_NO mca.cpp -o mca.o
mca.cpp: In function ‘void mexFunction(int, mxArray**, int, const mxArray**)’:
mca.cpp:429: warning: unused variable ‘NoStrings’
mca.cpp:430: warning: unused variable ‘mymxArray’
queue.h: In member function ‘T Queue<T>::Dequeue() [with T = int]’:
queue.h:176: warning: control reaches end of non-void function
g++ -c -DH5_USE_16_API -fPIC -I/usr/include/octave-3.0.5 -I/usr/include/octave-3.0.5/octave -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -I. -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Linux -DmexAtExit=atexit -DEPICS_DLL_NO MCAError.cpp -o MCAError.o
g++ -c -DH5_USE_16_API -fPIC -I/usr/include/octave-3.0.5 -I/usr/include/octave-3.0.5/octave -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -I. -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Linux -DmexAtExit=atexit -DEPICS_DLL_NO Channel.cpp -o Channel.o
Channel.h: In constructor ‘Channel::Channel(const ChannelAccess*, const char*)’:
Channel.h:179: warning: ‘Channel::last_put_ok’ will be initialized after
Channel.h:171: warning:   ‘dbr_gr_enum Channel::EnumStrings’
Channel.cpp:19: warning:   when initialized here

When I build for octave with EPICS_HOST_ARCH=darwin-x86 I get different warnings.  These sound a little more benign...
mkdir O.darwin-x86
mkoctfile --mex -DmexAtExit=atexit -v -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Darwin -DEPICS_DLL_NO -L/usr/local/epics/R3.14.12/base/lib/darwin-x86 -ldbStaticHost -lCom -lca mca.cpp MCAError.cpp Channel.cpp -o O.darwin-x86/mca.mex
/sw/bin/g++-4 -c -I/usr/local/include -D_REENTRANT -I/sw/include -fPIC -I/usr/local/include/octave-3.2.4 -I/usr/local/include/octave-3.2.4/octave -I/usr/local/include -mieee-fp -I/sw/include/freetype2 -I/sw/include -g -O2 -I. -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Darwin -DmexAtExit=atexit -DEPICS_DLL_NO mca.cpp -o mca.o
In file included from mca.cpp:24:
Channel.h: In member function 'char* Channel::GetHostName() const':
Channel.h:29: warning: deprecated conversion from string constant to 'char*'
/sw/bin/g++-4 -c -I/usr/local/include -D_REENTRANT -I/sw/include -fPIC -I/usr/local/include/octave-3.2.4 -I/usr/local/include/octave-3.2.4/octave -I/usr/local/include -mieee-fp -I/sw/include/freetype2 -I/sw/include -g -O2 -I. -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Darwin -DmexAtExit=atexit -DEPICS_DLL_NO MCAError.cpp -o MCAError.o
/sw/bin/g++-4 -c -I/usr/local/include -D_REENTRANT -I/sw/include -fPIC -I/usr/local/include/octave-3.2.4 -I/usr/local/include/octave-3.2.4/octave -I/usr/local/include -mieee-fp -I/sw/include/freetype2 -I/sw/include -g -O2 -I. -I/usr/local/epics/R3.14.12/base/include -I/usr/local/epics/R3.14.12/base/include/os/Darwin -DmexAtExit=atexit -DEPICS_DLL_NO Channel.cpp -o Channel.o
In file included from Channel.cpp:4:
Channel.h: In member function 'char* Channel::GetHostName() const':
Channel.h:29: warning: deprecated conversion from string constant to 'char*'

On Nov 17, 2010, at 3:08 AM, Korhonen Timo wrote:

> Dear all,
> 
> the enhancements to mca (Matlab Channel Access) that I announced in the last EPICS meeting are now
> available (except the GUI objects - those are not really part of the mca. They will follow later - if there
> is interest..)
> After consulting with Kay Kasemir we decided to put the code into SourceForge (sorry APS folks,
> I know you have problems with it) epics-applications project:
> https://sourceforge.net/projects/epics/
> 
> The code is in CVS:/extensions/mca
> 
> It has been in use here at PSI for a while (apart from one small change in egu handling) on our
> Scientific Linux 5 machines and I am not aware of any open issues.
> 
> Please take a look at the code and see if it works on other platforms and with Octave.
> Do not hesitate to point out problems - I am not very experienced in matlab interface API
> and my C++ skills also need some brushing up...
> 
> The main changes are listed in the release note (for version 4.2)
> 
> cheers,
> Timo
> 
> -- 
> Timo Korhonen  PSI (Paul Scherrer Institut, http://www.psi.ch)               CH-5232 Villigen PSI               tel + 41- 56 3103262  fax + 41 - 56 310 5090 e-mail:	       [email protected]
> 

-- 
Eric Norum
[email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System