• spir (12/12) Nov 19 2010 Hello,
• Dmitry Olshansky (13/25) Nov 19 2010 That would most likely be:
• Dmitry Olshansky (5/14) Nov 19 2010 Ehm, that should have been import std.array.
• bearophile (8/11) Nov 19 2010 I think it's idiomatic in D, so it's OK.

spir <denis.spir gmail.com> writes:

Hello,


* What is the D-idiomatic way to remove an element from a dynamic array?

* Ditto, for a slice, but with the 2 variants expression vs statement:
	a.removeSlice(i1, i2);
	a2 =3D a1.removeSlice(i1, i2);

* Can I rely on
	a.length =3D a.length - 1
to just remove the last element? If yes, is this considered good practice?


Denis
-- -- -- -- -- -- --
vit esse estrany =E2=98=A3

spir.wikidot.com

Dmitry Olshansky <dmitry.olsh gmail.com> writes:

On 19.11.2010 16:11, spir wrote:
 Hello,


 * What is the D-idiomatic way to remove an element from a dynamic array?
 * Ditto, for a slice, but with the 2 variants expression vs statement:
 	a.removeSlice(i1, i2);

That would most likely be:
std.array;
int[] a = ...;
replace(a,i1,i2,null);

 	a2 = a1.removeSlice(i1, i2);

hm, not sure how idiomatic is this:
a2 = a1.dup;
replace(a2,i1,i2,null);
 * Can I rely on
 	a.length = a.length - 1
 to just remove the last element? If yes, is this considered good practice?

For this one I'd use:
a = a[0..$-1];
this way to me it's more clear how array is changed.
 Denis
 -- -- -- -- -- -- --
 vit esse estrany ☣

 spir.wikidot.com

-- 

Dmitry Olshansky

Dmitry Olshansky <dmitry.olsh gmail.com> writes:

On 19.11.2010 17:53, Dmitry Olshansky wrote:
 On 19.11.2010 16:11, spir wrote:
 Hello,


 * What is the D-idiomatic way to remove an element from a dynamic array?
 * Ditto, for a slice, but with the 2 variants expression vs statement:
     a.removeSlice(i1, i2);

 That would most likely be:
 std.array;

Ehm, that should have been import std.array.
[snip]

-- 
Dmitry Olshansky

bearophile <bearophileHUGS lycos.com> writes:

spir:

 * Can I rely on
 	a.length = a.length - 1
 to just remove the last element? If yes, is this considered good practice?

I think it's idiomatic in D, so it's OK.

Currently you may also write that as:
a.length -= 1;
But this is not supported yet:
a.length--;

Bye,
bearophile