• Ellery Newcomer <ellery-newcomer utulsa.edu> Dec 09 2008
• "Jarrett Billingsley" <jarrett.billingsley gmail.com> Dec 09 2008
• Derek Parnell <derek psych.ward> Dec 10 2008

Ellery Newcomer <ellery-newcomer utulsa.edu> writes:

Does the following totally not make sense? I think it should work.

int[] a = new int[10];

a.length += 30;

"Jarrett Billingsley" <jarrett.billingsley gmail.com> writes:

On Tue, Dec 9, 2008 at 11:54 PM, Ellery Newcomer
<ellery-newcomer utulsa.edu> wrote:
 Does the following totally not make sense? I think it should work.

 int[] a = new int[10];

 a.length += 30;


It's a weird limitation that's been around forever.  Ugh.

Here, have this.

T[] resize(T)(ref T[] arr, ptrdiff_t delta)
{
    arr.length = arr.length + delta;
    return arr;
}

...

auto a = new int[10];
a.resize(30); // now 40
a.resize(-30); // now 10

Derek Parnell <derek psych.ward> writes:

On Tue, 09 Dec 2008 22:54:30 -0600, Ellery Newcomer wrote:

 Does the following totally not make sense? I think it should work.
 
 int[] a = new int[10];
 
 a.length += 30;


Unfortunately, the .length property, like all properties, do not support
the 'op=' syntax. You have to do it the long way ...

 a.length = a.length + 30;

-- 
Derek Parnell
Melbourne, Australia
skype: derek.j.parnell