Magic infinite loop inside foreach

[MrSmith]

On Thursday, 30 January 2014 at 22:56:46 UTC, MrSmith wrote:
> I have some function which does some matrix calculations and 
> prints them. It is actually calculationg determinant of the 
> matrix and i need to call those functions several times in the 
> loop, until i get the final result. Here is the code.
>
> void solveAndPrint(T : CoeffMatrix!(ElementType, ElementType), 
> ElementType)(T _matrix)
> {
> 	auto matrix = _matrix;
> 	TempMatrix!ElementType temp;
>
> 	foreach(_; 0..3) //3 is just for debug
> 	{
> 		writeln(matrix);
> 		temp = makeTemp(matrix);
>
> 		writeln(temp);
> 		matrix = solveTemp(temp);
>
> 		writeln("done1");
> 		stdout.flush();
> 	}
> 	writeln("done2");
> 	stdout.flush();
> }
>
> The problem is that after 'done1' is printed it is running 
> infinitely consuming all the processor just like if has 
> infinite loop inside. done2 is never printed.

Somehow if i comment out
//matrix = solveTemp(temp);
it works, but this method works fine, and after it done1 is 
printed. Strange.