Hi:
Several weeks ago i post a questions about overload functions in VALA. I
want create a wiki page with substitute methods in VALA for this topic:
1))) OVERLOAD FUNCTIONS 1:
You can use default values for parameters:
void method (int param1 = 5, string param2 = "x", bool param3 = false) {
...
}
then you can call
method ();
method (6);
method (6, "y");
method (6, "y", true);
this is perfect to emule Visual basic parameters for example.
2))) OVERLOAD CONSTRUCTOR.
GtkWidget <http://library.gnome.org/devel/gtk/stable/GtkWidget.html>*
gtk_button_new
<http://library.gnome.org/devel/gtk/stable/GtkButton.html#gtk-button-new>
(void);
GtkWidget <http://library.gnome.org/devel/gtk/stable/GtkWidget.html>*
gtk_button_new_with_label
<http://library.gnome.org/devel/gtk/stable/GtkButton.html#gtk-button-new-with-label>
(const gchar <http://library.gnome.org/devel/glib/stable/glib-Basic-Types.html#gchar>
*label);
GtkWidget <http://library.gnome.org/devel/gtk/stable/GtkWidget.html>*
gtk_button_new_with_mnemonic
<http://library.gnome.org/devel/gtk/stable/GtkButton.html#gtk-button-new-with-mnemonic>
(const gchar <http://library.gnome.org/devel/glib/stable/glib-Basic-Types.html#gchar>
*label);
GtkWidget <http://library.gnome.org/devel/gtk/stable/GtkWidget.html>*
gtk_button_new_from_stock
<http://library.gnome.org/devel/gtk/stable/GtkButton.html#gtk-button-new-from-stock>
(const gchar <http://library.gnome.org/devel/glib/stable/glib-Basic-Types.html#gchar>
*stock_id);
How can we emule this topic in VALA:
http://www.vala-project.org/doc/references/gtk+-2.0.vapi/Gtk/Button.htm
This VALA button i think it´s a good example.
Any samples to the wiki??
This is necessary for many classes like a "circle" class. We can create
a circle by different kind of parameters (radius+center, 3 points, etc).
3))) OVERLOAD TYPES OF PARAMETERS
int find(int colum, table A, int value)
int find(int colum, table A, long value)
int find(int colum, table A, string value)
How can we find a value in table if we have different kinds of column types.
Perhaps here we don´t have any solution, or perhaps using pointers.
begin:vcard
fn;quoted-printable:Mart=C3=ADn RV
n;quoted-printable:Rodriguez Vales;Mart=C3=ADn
email;internet:[EMAIL PROTECTED]
version:2.1
end:vcard
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