diff options
| -rw-r--r-- | d.html.markdown | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/d.html.markdown b/d.html.markdown index 7356174d..88c7e37f 100644 --- a/d.html.markdown +++ b/d.html.markdown @@ -219,7 +219,29 @@ void main() { Notice how we got to build a nice Haskellian pipeline to compute num? That's thanks to a D innovation know as Uniform Function Call Syntax. With UFCS, we can choose whether to write a function call as a method -or free function call! Walter wrote a nice article on this [here.](http://www.drdobbs.com/cpp/uniform-function-call-syntax/232700394) In short, you can call functions whose first parameter +or free function call! Walter wrote a nice article on this +[here.](http://www.drdobbs.com/cpp/uniform-function-call-syntax/232700394) +In short, you can call functions whose first parameter is of some type A on any expression of type A as a method. +I like parallelism. Anyone else like parallelism? Sure you do. Let's do some! +```d +import std.stdio; +import std.parallelism : parallel; +import std.math : sqrt; + +void main() { + // We want take the square root every number in our array, + // and take advantage of as many cores as we have available. + auto arr = new double[1_000_000]; + + // Use an index, and an array element by referece, + // and just call parallel on the array! + foreach(i, ref elem; parallel(arr)) { + ref = sqrt(i + 1.0); + } +} + + +``` |