Brian Gough wrote:
You need -ansi -pedantic there, otherwise the GNU extensions aren't
completely disabled -- non-constant initialisers aren't part of C89.
See http://www.network-theory.co.uk/docs/gccintro/gccintro_27.html
and http://www.network-theory.co.uk/docs/gccintro/gccintro_28.html
for d
Dimitris Papavasiliou writes:
> I've included the -ansi switch to gcc to make sure it won't
> work just because of some GNU extension.
You need -ansi -pedantic there, otherwise the GNU extensions aren't
completely disabled -- non-constant initialisers aren't part of C89.
See http://www.networ
Brian Gough wrote:
In C a const object has to be initialised in a single step (because
you can't modify it afterwards). And initialisers can only contain
constants, not expressions. So to create a const object whose members
depend on other variables you have to go through an indirection --
cre
James Bergstra writes:
> The same trick works for matrix types. Matrices have two sizes instead of
> one,
> and the 'stride' between columns on the same row is always assumed to be 1,
> but
> other than that, the things are analogous. For some reason, a matrix stride
> (from row to row) i
Dimitris Papavasiliou writes:
> Would something like this work
>
> +
> gsl_vector v; /* a struct, not a pointer */
>
> v = gsl_vector_view_from_array(array, n).vector;
> +
>
> I know this looks ugly too but hidden behind a macro it would be ok.
> Would this work correctly?
Hi Dimitris,
I agree with you completely that there should be a better way. In the meantime,
remember that C has no private and public members :)
A gsl_vector struct has three important fields:
v.data( pointer to data[0] )
v.stride ( gsl_vector_at(v,i) refers to v.data[i * v.stride]
Hi all,
I need to quickly and efficiently create a gsl vector/matrix from a C
array but doing something like
+
gsl_vector_view v_view;
gsl_vector *v;
v_view = gsl_vector_view_from_array(array, n);
v = &v_view.vector;
+
tends to get tedious and bloat functions where many vectors are
