Hello,
This code produces an error:
auto matches = content.matchAll(pattern);
auto max = matches.maxElement!"a => a.back.to!uint"();
I have a RegexMatch array like:
[["text1234", "1234"], ["zxs432fff", "432"], ["text000_eeee",
"000"]]
Max element here is 1234.
I apply map function "a => a.back.to!uint" to each Capture ->
take last hit, convert it to uint and return for comparison.
But compiler says:
template std.algorithm.searching.extremum cannot deduce function
from argument types !("a => a.back.to!uint", "a >
b")(RegexMatch!(char[])), candidates are:
I can't understand what it wrong here.
This works:
matches.map!(a => a.back.to!uint)().maxElement()
I don't want to use this variant because, as I understand, here
we create a temporary uint array and then search for max element.
I.e. there is an unnecessary allocation of memory.
