Bug 15091 – Error passing lambda to std.algorithm.sorting.sort

Compiles fine in release mode, but gives error in debug mode: dmd main.d -debug module main; import std.algorithm; import std.container; struct S { int value; } void main(string[] args) { Array!S stuff = [S(3), S(1), S(2)]; stuff[].sort!((ref S a, ref S b) => a.value < b.value); } std/range/package.d(7180,24): Error: 'std.range.SortedRange!(RangeT!(Array!(S)), __lambda2).SortedRange.dbgVerifySorted' is not nothrow std/algorithm/sorting.d(982,29): Error: template instance std.range.assumeSorted!(__lambda2, RangeT!(Array!(S))) error instantiating main.d(75,9): instantiated from here: sort!(function (ref S a, ref S b) => a.value < b.value, cast(SwapStrategy)0, RangeT!(Array!(S)))

*** This issue has been marked as a duplicate of issue 14981 ***