Following up on the initial RcppSpdlog 0.0.1 release earlier this week, we are pumped to announce release 0.0.2. It contains upstream version 1.8.0 for spdlog which utilizes (among other things) a new feature in the embedded fmt library, namely completely automated formatting of high resolution time stamps which allows for gems like this (taken from this file in the package and edited down for brevity):
spdlog::stopwatch sw; // instantiate a stop watch
// some other code
sp->info("Elapsed time: {}", sw);What we see is all there is: One instantiates a stopwatch object, and simply references it. The rest, as they say, is magic. And we get tic / toc alike behaviour in modern C++ at essentially no cost us (as code authors). So nice. Output from the (included in the package) function exampleRsink() (again edited down just a little):
R> RcppSpdlog::exampleRsink()
[13:03:23.845114] [fromR] [I] [thread 793264] Welcome to spdlog!
[...]
[13:03:23.845205] [fromR] [I] [thread 793264] Elapsed time: 0.000103611
[...]
[13:03:23.845281] [fromR] [I] [thread 793264] Elapsed time: 0.00018203
R> We see that the two simple logging instances come 10 and 18 microseconds into the call.
RcppSpdlog bundles spdlog, a wonderful header-only C++ logging library with all the bells and whistles you would want that was written by Gabi Melman, and also includes fmt by Victor Zverovic.
The NEWS entry for this release follows.
Changes in RcppSpdlog version 0.0.2 (2020-09-17)
Upgraded to upstream release 1.8.0
Switched Travis CI to using BSPM, also test on macOS
Added 'stopwatch' use to main R sink example
Courtesy of my CRANberries, there is a diffstat report relative to previous release. More detailed information is on the RcppSpdlog page.
The only sour grapes, again, are once more over the CRAN processing. And just how 0.0.1 was delayed for no good reason for three weeks, 0.0.2 was delayed by three days just because … well that is how CRAN rules sometimes. I’d be even more mad if I had an alternative but I don’t. We remain grateful for all they do but they really could have let this one through even at one-day update delta. Ah well, now we’re three days wiser and of course nothing changed in the package.
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This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.