[mlpack-git] [mlpack] segmentation fault with LogisticRegression API (#428)

[ttuethao]

In the mean time, I would suggest you guys change the warning popping during configuration
```
CMake Warning at CMakeLists.txt:88 (message):
This is a 64-bit system, but Armadillo was compiled without 64-bit index
support.  Consider recompiling Armadillo with ARMA_64BIT_WORD to enable
64-bit indices (large matrix support).  MLPACK will still work without
ARMA_64BIT_WORD defined, but will not scale to matrices with more than 4
billion elements.
```
to something that sounds more "fatal" to catch people attention. Something like ```MLPACK will still work without ARMA_64BIT_WORD defined``` to "MLPACK may have problems (e.g. in logistic_regression_function) when ARMA_32BIT_WORD (or ARMA_64BIT_WORD) is not consistently configured". Something like that may be useful for users in tracing the issue.

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Reply to this email directly or view it on GitHub:
https://github.com/mlpack/mlpack/issues/428#issuecomment-113202615
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