Re: Reffering to GArray as to an ordinar C-like array

[Emmanuele Bassi <ebassi gmail com>]

Hi;

On 3 April 2015 at 12:35, Sergei Kolomeeyets <kolomeeyets gmail com> wrote:

> While trying to combine GSL and GLib functions in the same code I faced the
> following question. Can I refer to *GArray object like an ordinar C-like
> array?

No, you can't.

But you can use the `data` field, with some casting, and using the
`len` field to avoid going over the array bounds.

> gsl_fft_radix2_transform ( (double*) g_array_data, 1, 256);

The code below would look like:

  gsl_fft_radix2_transform ((double *) g_array_data->data, 1, 256);

But remember: operating on the underlying C array wrapped by a GArray
can be tricky because GArray grows and shrinks as needed. You should
never exceed the length of the GArray, and the code you're calling
should not try to modify the array data pointer itself (e.g. by
reallocating it).

Ciao,
 Emmanuele.

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