• Igor (9/9) Jun 29 2014 In case I want to create a new array with size I know, it's very
• w0rp (3/12) Jun 29 2014 Just type int[] a; null and empty slices are indistinguishable in
• Daniel Murphy (2/5) Jun 30 2014 auto a = (int[]).init;
• Daniel Kozak via Digitalmars-d (11/20) Jun 30 2014 import std.stdio;
• Daniel Kozak via Digitalmars-d (16/25) Jun 30 2014 You can write some helper function:

"Igor" <idemura yandex.ru> writes:

In case I want to create a new array with size I know, it's very 
convenient to use auto:
auto a = new int[](13);
But if I want to create a new, empty array? Then using auto is 
not convenient and I have:
auto a = new int[](0);
It seems a bit bloated, compared to int[] a = []. I like using 
auto because of uniform syntax and other reasons. Is there any 
concise way to create a new empty array with auto?

"w0rp" <devw0rp gmail.com> writes:

On Monday, 30 June 2014 at 05:39:38 UTC, Igor wrote:
 In case I want to create a new array with size I know, it's 
 very convenient to use auto:
 auto a = new int[](13);
 But if I want to create a new, empty array? Then using auto is 
 not convenient and I have:
 auto a = new int[](0);
 It seems a bit bloated, compared to int[] a = []. I like using 
 auto because of uniform syntax and other reasons. Is there any 
 concise way to create a new empty array with auto?

Just type int[] a; null and empty slices are indistinguishable in 
terms of accessing .length and using foreach.

"Daniel Murphy" <yebbliesnospam gmail.com> writes:

"Igor"  wrote in message news:dladvaltigiapekureja forum.dlang.org... 

 It seems a bit bloated, compared to int[] a = []. I like using 
 auto because of uniform syntax and other reasons. Is there any 
 concise way to create a new empty array with auto?

auto a = (int[]).init;

Daniel Kozak via Digitalmars-d <digitalmars-d puremagic.com> writes:

V Mon, 30 Jun 2014 05:39:36 +0000
Igor via Digitalmars-d <digitalmars-d puremagic.com> napsáno:

 In case I want to create a new array with size I know, it's very 
 convenient to use auto:
 auto a = new int[](13);
 But if I want to create a new, empty array? Then using auto is 
 not convenient and I have:
 auto a = new int[](0);
 It seems a bit bloated, compared to int[] a = []. I like using 
 auto because of uniform syntax and other reasons. Is there any 
 concise way to create a new empty array with auto?

import std.stdio;

void main(string[] args)
{
    auto a = new int[13];
    auto b = new int[0];
    writeln(a.length);
    writeln(b.length);
    stdin.readln;
}

Daniel Kozak via Digitalmars-d <digitalmars-d puremagic.com> writes:

V Mon, 30 Jun 2014 05:39:36 +0000
Igor via Digitalmars-d <digitalmars-d puremagic.com> napsáno:

 In case I want to create a new array with size I know, it's very 
 convenient to use auto:
 auto a = new int[](13);
 But if I want to create a new, empty array? Then using auto is 
 not convenient and I have:
 auto a = new int[](0);
 It seems a bit bloated, compared to int[] a = []. I like using 
 auto because of uniform syntax and other reasons. Is there any 
 concise way to create a new empty array with auto?

You can write some helper function:

import std.stdio;

auto newa(T)(size_t length = 0)
{
    return new T[length];
}

void main(string[] args)
{
    auto a = newa!(int)(13);
    auto b = newa!(int);
    writeln(typeid(a),":", a.length);
    writeln(typeid(b),":", b.length);
    stdin.readln;
}