• Sam Hu (7/7) Nov 12 2009 How can I reach something like below code:
• Don (7/16) Nov 12 2009 You need to call the delegate you've made.
• Steven Schveighoffer (4/18) Nov 12 2009 Also, don't forget you can refer to variables in the enclosing function:
• bearophile (5/6) Nov 12 2009 You can also write:
• Ary Borenszweig (3/12) Nov 12 2009 Shorter:
• Sam Hu (12/13) Nov 12 2009 I missed this key point.
• BCS (4/22) Nov 12 2009 If the function has no args the first () can be dropped.
• Sam Hu (2/6) Nov 12 2009 Got it.Thanks a lot!

Sam Hu <samhu.samhu nospam.com> writes:

How can I reach something like below code:

int a=1;
int b=2;
int c=(int a,int b){
   return a+b;}
writefln("Result:%d",c);

Thanks in advance.

Don <nospam nospam.com> writes:

Sam Hu wrote:
 How can I reach something like below code:
 
 int a=1;
 int b=2;
 int c=(int a,int b){
    return a+b;}
 writefln("Result:%d",c);
 
 Thanks in advance.

You need to call the delegate you've made.

int a=1;
int b=2;
int c=(int a,int b){
    return a+b;}(a,b);
writefln("Result:%d",c);}

"Steven Schveighoffer" <schveiguy yahoo.com> writes:

On Thu, 12 Nov 2009 10:21:44 -0500, Don <nospam nospam.com> wrote:

 Sam Hu wrote:
 How can I reach something like below code:
  int a=1;
 int b=2;
 int c=(int a,int b){
    return a+b;}
 writefln("Result:%d",c);
  Thanks in advance.

 You need to call the delegate you've made.

 int a=1;
 int b=2;
 int c=(int a,int b){
     return a+b;}(a,b);
 writefln("Result:%d",c);}

Also, don't forget you can refer to variables in the enclosing function:

int c = (){return a + b;}();

-Steve

bearophile <bearophileHUGS lycos.com> writes:

Steven Schveighoffer:

 int c = (){return a + b;}();

You can also write:
int c = {return a + b;}();

Bye,
bearophile

Ary Borenszweig <ary esperanto.org.ar> writes:

bearophile wrote:
 Steven Schveighoffer:
 
 int c = (){return a + b;}();

 
 You can also write:
 int c = {return a + b;}();
 
 Bye,
 bearophile

Shorter:

int c = a + b;

Sam Hu <samhu.samhu nospam.com> writes:

Don Wrote:

 You need to call the delegate you've made.

I missed this key point.

So to summary:
int a=1;
int b=2;
1.nested function;
2.int c=(int a,int b){return a+b;}(a,b);
3.int c=(int,int){return a+b;}(a,b);
4.int c=(){return a+b;}();
5.int c={return a+b;}();

How come the last one is legal?

Thank you all for all your help!

BCS <none anon.com> writes:

Hello Sam,

 Don Wrote:
 
 You need to call the delegate you've made.
 

 I missed this key point.
 
 So to summary:
 int a=1;
 int b=2;
 1.nested function;
 2.int c=(int a,int b){return a+b;}(a,b);
 3.int c=(int,int){return a+b;}(a,b);
 4.int c=(){return a+b;}();
 5.int c={return a+b;}();
 How come the last one is legal?

If the function has no args the first () can be dropped.
If the return type can be inferred, that can be dropped.
Nested functions can access vars in the outer function.

 
 Thank you all for all your help!
 

Sam Hu <samhu.samhu nospam.com> writes:

BCS Wrote:

 If the function has no args the first () can be dropped.
 If the return type can be inferred, that can be dropped.
 Nested functions can access vars in the outer function.
 

Got it.Thanks a lot!