hectorr
committed
on 06 Apr 18
Performance: prefer lset over lreplace for modifying list values.

When a list element is modified, lset does it "in place", modifying t… Show more
Performance: prefer lset over lreplace for modifying list values.

   When a list element is modified, lset does it "in place", modifying the

   variable itself, while lreplace works with values and returns a second copy

   of the list with the modified elements, creating some unnecessary overhead.

   On my local tests, this particular operation was around 30% faster.

   More details: http://wiki.tcl.tk/1485 and http://wiki.tcl.tk/2556

Show less