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I have installed Eclipse Indigo for C/C++ Linux developers on Ubuntu 10.04 x86.
When I use common predefined macro __BASE_FILE__ Eclipse says Symbol '__BASE_FILE__' could not be resolved, but compilation is OK. I have to use it so often in my code and Eclipse fills my screen with red lines and bug icons :)
How can I fix this?
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During the semantic analysis phase, this type of error appears. These types of error are detected at compile time. Most of the compile time errors are scope and declaration error.
Alternatively you can turn off syntax error reporting in the editor by going to Window > Preferences > General > Editors > Text Editors > Annotations and unchecking all the checkboxes for C/C++ Indexer Markers.
Semantic errorThis kind of error occurs when it is syntactically correct but has no meaning. This is like grammatical mistakes. If some expression is given at the left side of assignment operator, this may generate semantic error.
The CDT is Eclipse's C/C++ Development Tooling project. It is an industrial-strength C/C++ IDE that also serves as a platform for others to provide value-added tooling for C/C++ developers.
Not sure if this addresses your specific problem, but I also had semantic errors. They just came out of the blue after having a working project.
Anyway, I fixed it with a single option in workspace settings by setting: "Build configuration for indexer: Use active build configuration"
The other option was "Use the build configuration specified in the project's indexer settings" and this is the one that wasn't working. I think it may have been corrupted after an eclipse crash.
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