The following code on dmd2.047 causes the error:

"Assertion failure: 'se->sz == 1' on line 3005 in file 'expression.c'"

The string passed in is invalid due to bug 4389.

Test case:


import std.stdio;
import std.range;

string get()
{
	auto ds = "int x;"d;
	// build "int x;" from dchars
	
	string s;
	foreach(c; ds)
		s ~= c;
	
	return s;
}

void main()
{
	mixin(get());
}