Sorts @seq using @cmp_func.
@cmp_func is passed two items of @seq and should return 0 if they are equal, a negative value if the first comes before the second, and a positive value if the second comes before the first.
the function used to sort the sequence
user data passed to @cmp_func
2.14
See Implementation
Sorts @seq using @cmp_func.
@cmp_func is passed two items of @seq and should return 0 if they are equal, a negative value if the first comes before the second, and a positive value if the second comes before the first.