"%s"-format template function arguments
Hello people of D-land.
In a template function, I want to format all arguments as if it
was an array. Se this snippet of code:
foo(1,2,3);
void foo(T...)(T args)
{
writefln("expected: %s", [1,2,3]);
writefln("actual: %s", args);
}
The code above will output
expected: [1, 2, 3]
actual: 1
How would I go on about to print all the arguments as I expected
it, using "%s"?
Best regards,
Vladimirs Nordholm
---
P.S.
I do not understand why only a `1` is printed in the actual
result.
@property get/set or public varaible?
Hello! I have a question not directly related to D as it is with coding standards. My issue at hand is if I have one variable for a class, which I want to be directly accessible for anything else, should it be 1. public, or 2. private, with @property get/setters? From what I have been told is that variables should be private. But if I do not want to make any checks whatsoever when setting a variable, I see no benefit to the private approach. Are there any other reasons to use get/setters?
Re: Access vialotion
On Wednesday, 22 June 2016 at 12:47:31 UTC, TheDGuy wrote:
On Wednesday, 22 June 2016 at 12:45:29 UTC, TheDGuy wrote:
I have an array of buttons:
class Window : MainWindow{
private Button[4] bArr;
this(){
Button btn_1 = new Button();
Button btn_2 = new Button();
Button btn_3 = new Button();
Button btn_4 = new Button();
Button[4] bArr = [btn_1,btn_2,btn_3,btn_4];
}
private void letButtonsFlash(){
for(int i = 0; i < 4; i++){
writeln(this.bArr[i].getName());
}
}
}
i don't understand why i get an 'Access Violation' - Error in
the 'for'-loop?
Okay, i solved it, instead of:
Button[4] bArr = [btn_1,btn_2,btn_3,btn_4];
this:
bArr = [btn_1,btn_2,btn_3,btn_4];
I would also suggest you use a foreach loop to iterate over the
buttons:
private void letButtonsFlash()
{
foreach(button; bArr)
{
writeln(button.getName());
}
}
//Also, question to anyone: should a ref be used here?
