On 7/9/21 5:13 PM, rempas wrote:
On Friday, 9 July 2021 at 20:54:21 UTC, Paul Backus wrote:
On Friday, 9 July 2021 at 20:43:48 UTC, rempas wrote:
I'm reading the library reference for
[core.time](https://dlang.org/phobos/core_time.html#Duration) and It
says that the duration is taken in "hnsecs" and I cannot understand
if we can change that and choose the precision. Does anyone know if
we can do that?
It is stored internally in "hnsecs", but you can convert it to other
units using the `total` method [1]; for example,
`myDuration.total!"nsecs"`.
[1] https://dlang.org/phobos/core_time.html#.Duration.total
It doesn't work for me. I have the following code:
```
MonoTime start = MonoTime.currTime();
// Doing stuff
MonoTime end = MonoTime.currTime();
Duration dur = end - start;
dur = dur.total!"nsecs";
```
and I get the following error message:
"Error: cannot implicitly convert expression \`dur.total()\` of type
\`long\` to \`Duration`"
BTW `Duration` is truncating here. `MonoTime` stores its values in
implementation-defined ticks, which can be nanoseconds or any other
thing that the specific clock uses. Whereas `Duration` uses strictly hnsecs.
If you want to get sub-hnsec resolution, use the `ticks` member of
`MonoTime` and `ticksPerSecond` and do the math for the units.
See the warning
[here](https://dlang.org/phobos/core_time.html#.MonoTimeImpl.opBinary).
-Steve
