Am 13.08.2017 um 20:25 schrieb Stefan Koch:
On Sunday, 13 August 2017 at 18:20:15 UTC, Sönke Ludwig wrote:
I was a bit shocked by this number and performed a little test with
multiple calls to format. Fortunately only the first one takes that
long to compile. For 500 different calls I got about 2ms per call on
Windows (which might get slowed down somewhat by the slow terminal
output):
import std.format;
template T(size_t i) {
static if (i > 0) {
pragma(msg, format("Bye %s %s %s %s %s %s %s %s %s %s",
i, " I ", "just", " have", " to", " concat", " a lot",
" of", " strings ...", 9));
enum T = T!(i-1);
} else enum T = 0;
}
enum test = T!500;
Wouldn't you say that 2ms is still a pretty long time for a function call ?
For this particular function call, yes, but still a lot less scary ;) To
get some better numbers, can you do a side by side comparison of your
two versions both executed a few hundred times? If the simplified
version still turns out considerably faster then there may be some low
hanging fruits in vibe.d's web/REST modules.
