Constraints

["İbrahim Gökhan]

// implement foo's without constraints
//------------------------------------------------------------

void foo(Range)(Range r)
	if (isInputRange!Range && !isForwardRange!Range)
{ }

void foo(Range)(Range r)
	if (isForwardRange!Range && !isBidirectionalRange!Range &&
!isRandomAccessRange!Range)
{ }

void foo(Range)(Range r)
	if (isBidirectionalRange!Range && !isRandomAccessRange!Range)
{ }

void foo(Range)(Range r)
	if (isRandomAccessRange!Range)
{ }