Implemented check on empty arrays for some functions -> raises exceptions now

Closes #22 (closed), closes #17 (closed)

I have implemented checks for some of the C++ functions. I think I have caught all the ones that @andre.anjos mentioned in #22 (closed).

I have not tested the behavior with bob.bio.base yet.

added 1 commit

• 2fde8bfc - Added min_weighted_error_rate_threshold in test for raised exceptions

Compare with previous version

Note that I had some random crashes on OSX while compiling. However, re-starting the build helped.

@andre.anjos: do you think any more functions need to be patched?

@amohammadi: could you test the behavior of bob.bio.base?

This looks very clean - thanks. I don't think other functions need patching.

Will let @amohammadi merge it if OK.

assigned to @amohammadi

Issue #17 (closed) I think is also affected, so we should close this one as well, if @amohammadi's testing works.

It works. Thanks.

mentioned in commit 1821ba71

merged