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Variables everywhere - is it good idea?
moskalenco_a:
Hi all.What do you think about this idea?Example,
--- Code: ---begin
var a:Integer;
a:=0;
for var i:=1 to 10 do
begin
var c:=i*2;
a:=a+c;
end;
Writeln(a);
Readln;
end.
--- End code ---
Is it good idea or is it bad?
Never:
these expresions are currently illegal the above code will not compile...
if this is a suggestion imho : no thank you very much
this a nice way to lose the eggs and the basket in 10 lines of code
moskalenco_a:
Yes,it's suggestion.
Nitorami:
This is useless. In a construct like
for var i := 1 to 10 do
what is "var" good for ? It has no meaning. In Basic, you can omit it competely
for i = 1 to 10 do ...
In C, you need to specify the type of variable
for (int i=1; i <=10; i++)
Pascal forces you to specify it beforehand, and that is intended.
--- Code: ---var a,i,c:Integer;
begin
a:=0;
for i:=1 to 10 do
begin
c:=i*2;
a:=a+c;
end;
Writeln(a);
Readln;
end.
--- End code ---
marcov:
It can be used to disambiguate that you really want to create a variable in that scope, overriding a possible local variable called I.
That being said with most current IDE having shortcuts to properly declare variables, I think it is an outdated concept.
It was probably important to micromanage stack depth in the C of 1970, but nowadays barely anything is dynamically allocated from the stack anymore (alloca in C), and most big types are not allocated from the stack.
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