Undefined behavior in QuickSort() and QuickSortEdges()

[tksuoran]

	// Random
	t=uSeed&31;
	t=(uSeed<<t)|(uSeed>>(32-t));

When t is 0 after t=uSeed&31, UBSAN says runtime error: shift exponent 32 is too large for 32-bit type 'unsigned int'