On Sunday, 30 July 2017 at 19:32:48 UTC, Eugene Wissner wrote:
On Sunday, 30 July 2017 at 19:22:07 UTC, Jiyan wrote:
Hey,
just wanted to know whether something like this would be
possible sowmehow:
struct S
{
int m;
int n;
this(this)
{
m = void;
n = n;
}
}
So not the whole struct is moved everytime f.e. a function is
called, but only n has to be "filled"
this(this) is called after the struct is copied. Doing
something in the postblit constructor is too late. The second
thing is that the struct is copied with memcpy. What you
propose would require 2 memcpy calls to copy the first part of
the struct and then the second part. Besides it is difficult to
implement, it may reduce the performance of the copying since
memcpy is optimized to copy memory chunks.
Ok thank you :)
