On Saturday, 8 July 2023 at 20:01:08 UTC, H. S. Teoh wrote:
On Sat, Jul 08, 2023 at 05:15:26PM +0000, Cecil Ward via Digitalmars-d-learn wrote:
I have a dynamic array of dstrings and I’m spending dstrings to it. At one point I need to append a zero-length string just to increase the length of the array by one but I can’t have a slot containing garbage. I thought about ++arr.length - would that work, while giving me valid contents to the final slot ?

Unlike C/C++, the D runtime always ensures that things are initialized unless you explicitly tell it not to (via void-initialization). So ++arr.length will work; the new element will be initialized to dstring.init (which is the empty string).


T

Many thanks, it might give me a slightly better result just doing ++arr.length;

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