Is there any particular reason why gsl should abort on
gsl_vector_alloc( 0 ) and gsl_matrix_alloc( 0 )?

It is straightforward to construct a gsl_vector or matrix of size 0. And
I think all the vector and matrix operations behave appropriately on
such as vector or matrix: that is, they do not abort if the operation is
meaningful, even if the result is undefined.

There are occasions when it is useful to allow a vector of size 0. For
example, it is easier to put a gsl_vector* in a struct and interrogate
it with gsl_vector_size( s.vector ) than with s.vector == 0 ? 0 :
gsl_vector_size( s.vector ).

-- 
John D Lamb


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