Display the source code in rt/lifetime.d from which this page was generated on github.

If you spot a problem with this page, click here to create a Bugzilla issue.

Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using local clone.

Function `rt.lifetime._d_arraysetlengthT`

Resize a dynamic array by setting the .length property


						
				extern(C) void[] _d_arraysetlengthT
				(
				

				  const(TypeInfo) ti,
				

				  ulong newlength,
				

				  void[]* p
				

				);

Newly created elements are initialized to their default value.

Has two variants: - _d_arraysetlengthT for arrays with elements that initialize to 0 - _d_arraysetlengthiT for non-zero initializers retrieved from TypeInfo

void main()
{
    int[] a = [1, 2];
    a.length = 3; // gets lowered to `_d_arraysetlengthT(typeid(int[]), 3, &a)`
}

Parameters

Name	Description
ti	`TypeInfo` of array
newlength	new value for the array's `.length`
p	pointer to array to update the `.length` of. While it's cast to `void[]`, its `.length` is still treated as element length.

Returns

*p after being updated

Authors

Walter Bright, Sean Kelly, Steven Schveighoffer

License

Distributed under the Boost Software License 1.0. (See accompanying file LICENSE)