On Sunday, 14 January 2018 at 21:38:39 UTC, drug wrote:
15.01.2018 00:21, Marc пишет:
give a list, how can I select only the elements of a range
according to a condition give by a lamba function?
something like this:
auto l = myList.select(e => e.id < 300);
it would return a range. Similar to C#'s select:
https://msdn.microsoft.com/en-us/library/bb548891(v=vs.110).aspx
import std.algorithm : filter;
auto l = myList.filter!(e => e.id < 300);
thanks, can i use it at compile time as well?
enum isMutableString(string field) =
is(typeof(__traits(getMember, >C, field)) == string);
static foreach(field; [FieldNameTuple!C].filter!(f =>
isMutableString!(f))) {
writeln(field);
}
give error:
Error: variable f cannot be read at compile time
