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namespace Eigen {
/** \page TopicPreprocessorDirectives Preprocessor directives
You can control some aspects of Eigen by defining the following preprocessor tokens them before including any of Eigen's headers.
- \b #EIGEN_NO_DEBUG disables Eigen assertions. Like NDEBUG but only affects Eigen's assertions.
- \b EIGEN_DONT_VECTORIZE disables explicit vectorization when defined.
- \b EIGEN_UNROLLING_LIMIT defines the maximal instruction counts to enable meta unrolling of loops. Set it to zero to disable unrolling. The default is 100.
- \b EIGEN_DEFAULT_TO_ROW_MAJOR the default storage order for matrices becomes row-major instead of column-major.
- \b EIGEN_TUNE_FOR_CPU_CACHE_SIZE represents the maximal size in Bytes of L2 blocks. Since several blocks have to stay concurently in L2 cache, this value should correspond to at most 1/4 of the size of L2 cache.
- \b EIGEN_NO_STATIC_ASSERT replaces compile time static assertions by runtime assertions
- \b EIGEN_MATRIXBASE_PLUGIN see \ref ExtendingMatrixBase
*/
}
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