On Tuesday, 6 May 2014 at 00:10:36 UTC, Andrei Alexandrescu wrote:
So I'm looking at creation functions and in particular creation
functions for arrays.
1. Follow the new int[n] convention:
auto a = allok.make!(int[])(42);
assert(a.length == 42);
assert(a.equal(repeat(0, 42));
2. Follow the [ literal ] convention:
auto a = allok.make!(int[])(42);
assert(a.length == 1);
assert(a[0] == 42);
For the second option, to create longer arrays:
auto a = allok.make!(int[])(42, 43, 44);
assert(a.length == 3);
assert(a.equal(iota(42, 45));
Nice ways to repeat things:
auto a = allok.make!(int[])(42, repeat(43, 5), 44);
And even nice ways to create holes for efficiency:
auto a = allok.make!(int[])(42, uninitialized(5), 44);
Destroy.
Andrei
The first option should have better performance(write fast code).
The second method allows more expressiveness(write code fast). I
generally like expressiveness, but direct memory allocation is
low level programming, so fast code should take precedence.
