"Werror=pedantic" in the "openflow" function of ns-3.42
Wagner de Oliveira
1) The message "error: ISO C++ forbids zero-size (array/data/actions and others) [-Werror=pedantic]" continues to appear in the program when we run "./ns3 build", as shown in the image.
2) I am using:
- Ubuntu 24.04.3 LTS amd64
- Codename: noble
- ns-3.42
3) I ran the 3 (three) commands you recommended to disable the errors:
./ns3 configure --disable-werror
./ns3 configure --disable-warnings
./ns3 configure -- -DNS3_WARNINGS_AS_ERRORS=OFF
Is there another command to disable this error?
Even so, the errors continue to occur, as shown in the attachment. Could you help me?
Wagner
Tom Henderson
Can you please tell us what compiler version generated this error, so we can try to reproduce? For g++, the command is "g++ -v"; for clang++, it is similar ("clang++ -v").
I don't know offhand why the ns-3 commands are not working; we would have to take a look.
If you do not need the openflow module, you can delete the directory "ns-3.42/src/openflow". If you do need to get the openflow module working, then you can try to modify the openflow source code (openflow is a separate library that provides openflow.h) to replace the syntax used for those structure declarations, to change '[0]' to '[]' for each instance of the warning: e.g.
struct ofp_phy_port ports[0];
would become
struct ofp_phy_port ports[];
Although I am not
sure whether some compilers may still complain about this.
- Tom
Wagner --
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