Function Perm.this
Generate permutations from an input range. Create a duplicate of this sequence so that the original sequence is not modified.
this(U)
(
U input
)
if (isForwardRange!U);
Generate permutations from an input range. Create a duplicate of this sequence so that the original sequence is not modified.
this(U)
(
U input
)
if (isForwardRange!U);