Re: strange behaviour with `substr()` function

[Nicolas Jäger <jagernicolas legtux org>]

Hi Marcin,
Ok... I thought that the result of `substr(a,b)` meant to remove all
chars before `a` and after `b`... like when doing `erase( 0, a )` then
`erase(b)`.

thx.

regards,
nicolas

Le Wed, 26 Aug 2015 16:36:18 +0200,
Marcin Kolny <marcin kolny gmail com> a écrit :

> I see nothing wrong with that. Then if I use the `substr()` function,
> I
>
> > don't understand why I got, for the case (0,4): gtkm and for the
> > case (1.5) gtkmm.
>
> substr() method internally creates a new Glib::ustring object using
> constructor [1] (actually, it's the same behavior as substr() from
> std::string [2]). So, substr(0, 4) means: get 4 characters from
> string, but start from index 0. Four first letters of "gtkmm" string
> are 'g', 't', 'k' and 'm'.
>
> [1]
> https://developer.gnome.org/glibmm/stable/classGlib_1_1ustring.html#a37655e890b5cb3a2f0fc862b85ba29cc
> [2] http://www.cplusplus.com/reference/string/string/substr/