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Home » Language IDEs » C / C++ IDE (CDT) » Conditional compile not working(Use of #if/#elif shows on screen, does not compile)
Conditional compile not working [message #1851071] Sat, 26 March 2022 17:16
Andrew Coad is currently offline Andrew CoadFriend
Messages: 4
Registered: January 2022
Junior Member
Hi,
This is driving me slowly mad. Again, Eclipse is showing me one thing on screen and compiling something different.
See attached files. The first one shows what I am seeing on screen - the preprocessor symbol BOARD_SWIFT is shown as active; BOARD_AMP_MODULE inactive.
The second file shows the preprocessor symbols at the project level. As expected, BOARD_SWIFT is set to 1, BOARD_AMP_MODULE is set to 0.

However, when I run the code, neither option is in effect. You can see where the breakpoint actually hit - the code skipped over all of the #if/#elif delimited code.

The only way that I can get this code to execute properly is to put the same preprocessor settings on the file itself. This file happens to be main.c so if I put BOARD_SWIFT=1 and BOARD_AMP_MODULE=0 on main.c, the code runs as shown on screen.

Why? Why does Eclipse suddenly decide that I have to put symbols at the file level? How do I prevent Eclipse from using file-level symbols?

AC

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