[Issue 4705] Redesign of std.algorithm.max()/min() + mins()/maxs()

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=4705



--- Comment #9 from bearophile_h...@eml.cc 2011-05-23 05:12:44 PDT ---
Another example, compared to using minPos():


import std.stdio, std.algorithm, std.array;

void main() {
    string[] data = ["red", "hello", "yes", "no", "roger", "bud"];

    // works in DMD 2.053
    string r1 = minPos!q{ walkLength(a) > walkLength(b) }(data).front();
    writeln(r1);

    // proposed
    string r2 = max!q{ walkLength(a) }(items);
    writeln(r2);
}


The second version is shorter and more readable, and just like schwartzSort()
the modified max() is more efficient than using minPos when the mapping
function becomes costly to compute.

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