Bug 4286 – Wrong error line number and more with schwartzSort

This is D2 code, I don't understand this bug: import std.typecons: tuple, Tuple; import std.algorithm: schwartzSort; void foo(int N)(char[] txt) { int[char[N]] aa; foreach (i; 0 .. txt.length + 1 - N) { char[N] key = txt[i .. i + N]; aa[key]++; } alias Tuple!(char[N], "key", int, "value") Pair; Pair[] pairs; foreach (key, value; aa) pairs ~= Pair(key, value); schwartzSort!((p){ return tuple(p.value, p.key); })(pairs); } void main() { char[] txt = cast(char[])("this is just a test".dup); foo!(1)(txt); foo!(2)(txt); } DMD v2.046 prints at compile-time: test.d(4061): Error: function test.foo!(1).foo.schwartzSort!(__dgliteral1,"a < b",cast(SwapStrategy)0,Tuple!(char[2u],"key",int,"value")[]).schwartzSort is a nested function and cannot be accessed from foo This work-around seems to fix the program: schwartzSort!((Pair p){ return tuple(p.value, p.key); })(pairs); Also note the wrong line number, this is why I have tagged this as DMD bug instead of Phobos problem.

The wrong line number was fixed in DMD2.054. The other issue is an instance of bug 5939, bug 6217, and various others.

Works in 2.061+.