Display problem in the IDE with #if and #ifdef

[MA4]

Hello, I am working on a project with a dual core processor (H7) and I have some display problems in my IDE (STM32CubeIDE v1.9.0). For example, I added the LWIP part to my board with #define LWIP_IPV4 1 and #define LWIP_DHCP 1.

When I am in debug mode, I can see that I pass in the code present in dhcp.c (starting with #if LWIP_IPV4 && LWIP_DHCP) but the code is totally greyed out as if LWIP_IPV4 and LWIP_DHCP were 0.

This is an example, I can observe this phenomenon elsewhere in my project.

Does anyone have a solution?

[AScha.3]

(in C) really : >> #if LWIP_IPV4 && LWIP_DHCP << ? warning ?

 #ifdef LWIP_IPV4

[MA4]

OK but it's not my code but the LWIP middleware files.

plus I don't want to modify the middleware or driver files because I can't update them if I do

[Cartu38 OpenDev]

Is such may help ? https://community.st.com/s/question/0D53W00000bdW3XSAU/issue-with-stm32cubeide-file-indexing-on-dual-core-stm32h7-project

[AScha.3]

ok, ... so maybe you need to have a C++ project, in c++ "#if ..." should be doing, what you want .

+ in IDE : right click on your project -> option: convert to c++ (try, but first backup your project ! )

[MA4]

I close my project and open it and the problem has disappeared in many files

[MA4]

Yes, it's help but I don't want to duplicate files, I know it's can works without, maybe it's a loading problem.