2018 September 10 CPLEX, Cpp

Configurate Eclipse C++ IDE to compile CPLEX

This note shows how to configurate CPLEX in Eclipse C++ IDE so that developers can compile and link .cpp which contains CPLEX model.

Eclipse Installation Info

Create a new project

Prepare a test file

Copy a MIP example from .../Applications/IBM/ILOG/CPLEX_Studio1271/cplex/examples/src/cpp/ into the project.

However, as we can see below, Eclipse complains due to lack of configuration of include files (.h files) and libraries

Configuration of CPLEX

Right click on the project and select properties

Configuration for compiler

Includes :: Include paths (-l)

/Users/y0w02p1/Applications/IBM/ILOG/CPLEX_Studio1271/cplex/include  
/Users/y0w02p1/Applications/IBM/ILOG/CPLEX_Studio1271/concert/include

Preprocessor :: Defined symbols (-D)

IL_STD

Dialect :: Other dialect flags

-stdlib=libc++

Use the following chart to validate the compile command is correct

Configuration for Linker

Libraries (-l)

concert
cplex
ilocplex

Library search path (-L)

/Users/y0w02p1/Applications/IBM/ILOG/CPLEX_Studio1271/cplex/lib/x86-64_osx/static_pic   
/Users/y0w02p1/Applications/IBM/ILOG/CPLEX_Studio1271/concert/lib/x86-64_osx/static_pic

to validate:

Run Configuration

Reference

Ref: https://stackoverflow.com/questions/38312273/setting-up-cplex-in-eclipse-c-on-linux

Instead, you should try running one of the C++ examples shipped with CPLEX. Try the following (assuming your path is correct from above):
$ cd /opt/ibm/ILOG/CPLEX_Studio_Community1263/cplex/examples/x86-64_linux/static_pic
$ make ilolpex1 2>&1 | tee output.txt
This will save the output in output.txt so that you can look at it later. It should give you an idea of what the required command line arguments are.

For example, on my system (x86-64_linux), I see this in the output:
$ make ilolpex1
g++ -O0 -c -m64 -O -fPIC -fno-strict-aliasing -fexceptions -DNDEBUG -DIL_STD -I../../../include -I../../../../concert/include  ../../../examples/src/cpp/ilolpex1.cpp -o ilolpex1.o
g++ -O0 -m64 -O -fPIC -fno-strict-aliasing -fexceptions -DNDEBUG -DIL_STD -I../../../include -I../../../../concert/include  -L../../../lib/x86-64_linux/static_pic -L../../../../concert/lib/x86-64_linux/static_pic -o ilolpex1 ilolpex1.o -lconcert -lilocplex -lcplex -lm -lpthread
This tells you everything you need to know to compile and link your program. You’ll just need to figure out where to enter this information in Eclipse.

Note: on my machine