questions about NewPermanentCallback

[ziye...@gmail.com]

Hi developers, I have a beginner question: I saw NewPermanentCallback used a lot in the examples, e.g. cvrptw.cc. But I don't really understand what are valid arguments for it. I took a look at the header and it seems there are many overloading of this routine. So a concrete question is, say I want to add a capacity dimension, or ArcCostEvaluator, do we always provide the NewPermanentCallback with 1. address of the class that contains a function which returns the corresponding quantity 2. the (public) class member function?

Thanks a lot for your help.

-Ziye

[Laurent Perron]

Forget it, they disappear in the next release (hopefully next week).

Please look at the 7.0 beta, of the master branch on girthub.

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

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[ziye...@gmail.com]

Thanks Laurent. I just cloned the beta version. I have another question: I see the original Makefile has been split into several smaller ones, but somehow I cannot find the definition of CCC, CFLAGS, OR_TOOL_LNK and OR_TOOL_LDFLAGS... 

I need to modify them because I want to add my project into the directory. My project has a few cc files, one main file. And cc files depend upon each other and main.o will compile with all the object files. So it is a bit different from the cc file in the example directory. I didn't the best way to do so I just add a conditional statement to check $(SOURCE_NAME). If it is my project, I will compile it differently but with the same CFLAGS and LDFLAGS. 

Thanks a lot for your help!

[Laurent Perron]

You should use make install_cc DESTDIR=<path to installation directory>

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

[ziye...@gmail.com]

Thanks again. Before I saw you message, I've done make cc and make test_cc and all examples compile well. But then I add in my own project and there is a dylib linker error -- it seems all the google dylib (gflags, glog, etc.) are not well linked. But then I did make install_cc my/dir and the problem is solved. However I saw install_cc only copy headers into /usr/local/include but did not do anything about dylib. Just curious: do you know what is happening?

Thanks Laurent!

[Laurent Perron]

Did you specify DESTDIR=<path> when using make install_cc ?

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

[ziye...@gmail.com]

No, is that why the headers are installed in /usr/local?

[ziye...@gmail.com]

I tried it with DESTDIR and now I have a usr file containing all includes and libs. Should I just compile this guy with my project? Is there a compilation flag template?

[Laurent Perron]

Did you write DESTDIR=<a real path> ?

Laurent Perron | Operations Research | lpe...@google.com | (33) 1 42 68 53 00

[ziye...@gmail.com]

yes.