delegates vs functions => practical consequences

[Mirko Pilger]

> I want to know what is most interesting for me: delegates or functions.
> I consulted sources but none say the practical consequences of such
> election.

in addition to what john said: regarding _function literals_ the 
difference is by using a delegate instead of a function you have access 
to the enclosing frame, e.g. variables in the same scope.

the following code doesn't compile with the error "[...] cannot access 
frame of [...]":

int y;
auto fn= function(int x) {return x+y;};

if you change this to:

int y;
auto fn= delegate(int x) {return x+y;};

it compiles without error.