If we want to add the Eigen library to a PROS project, we can just unzip the release version under"/include" folder.
And if you are using that, the error will occur：
Actually the error may be differ, because the function you are using is not the same as mine. But there should be an error look like this:
That means there have some type conflicts.
What’s happening is that Eigen is using the optimized vector processing provided by the Neon processor that the V5 has, that’s part of a system header file, arm_neon.h. There’s a mismatch between what that header thinks is an int32_t and what the VEX sdk thinks is an int32_t, it may be a clang/gcc difference, not sure. Anyway, for now turn off Neon detection like this and it will build.
As shown in https://www.vexforum.com/t/eigen-integration-issue/61474/6
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