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Why some IDEs (Eclipse, VS Code) need to add include paths while gcc manages to compile the same project?

原文 2020-05-08 09:02:50 0 1 c++/ gcc/ include-path

Many of us have struggled with include path problems in their C/C++-IDEs like Eclipse or VS Code. The IDE underlines the #include-directives red and mentions it is unable to find the location of certain headerfiles. But in the same time the project compiles fine via gcc. It is understandable that both are two different steps and pieces of software but why is the gcc able to find the needed include paths while the IDE is not?

1 answers

Run gcc -v -E - and you'll seen why. Each GCC installation has fixed include paths. GCC can't "find" these headers; GCC relies on being installed correctly.

Note that Visual Studio (the old, non-Code variant) rarely has this problem as it's much better integrated.

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Related Question Eclipse not updating “built-in” include paths for Android NDK Project after switching to GCC 4.8 Why this code isn't compile with VS2010 and gcc 4.8.1 Why does this code fragment compile with VS2010 but not GCC 4.5.2? Why this code fails to compile with gcc 4.8.5 while it compiles fine with clang Eclipse Include Paths outside Project Directory With Eclipse: How to add include paths and libraries for all your C/C++ project How can I conditionally include two differently named libraries of the same version for a cross-compile project in Eclipse? Why does this code compile with gcc but not with clang Why doesn't GCC compile this code? Why does this code compile with g++ but not gcc?

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Why some IDEs (Eclipse, VS Code) need to add include paths while gcc manages to compile the same project?

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1 answers

solution1 0 2020-05-08 11:28:35

solution1
0 2020-05-08 11:28:35