On Monday, 4 December 2023 at 03:50:47 UTC, Siarhei Siamashka
wrote:
On Monday, 4 December 2023 at 03:07:07 UTC, matheus wrote:
import std.stdio;
import std.algorithm;
import std.array;
import std.format;
import std.conv;
import std.string;
...
Why do you do multiple imports instead of one import std;?
I means is there any difference in CT?
The code indeed compiles faster with fewer imports and this
pays off in the long run for the actively developed large
projects. Additionally, it's a good idea not to pollute the
namespace with the functions that the developer has no
intention to use.
```
dmd -betterC hellobc.d ran
6.18 ± 0.33 times faster than dmd hellosel.d
19.76 ± 1.06 times faster than dmd hellostd.d
```
26ms, 136ms, 470ms.
16MB, 56MB, 154MB.
-betterC with selected import of core.stdc.stdio
selected import of std.stdio.writeln
import std.
D has the capability to compile extremely quickly. dmd compiles
itself in a second or two. But it also gives you plenty of
opportunities to trade that for convenience.
