** Summary ** '''Tcl_NewListObj''', a function in the [Tcl C API%|%Tcl C API], creates a new value that has the internal representation of a [list]. ** Description ** A performance trick to pre-allocate an internal [list] representation of some size, i.e., 10000. Useful to avoid the cost of reallocation when elements will be added individually: ======c Tcl_NewListObj(10000, NULL) ====== Note that this behaviour is not documented and hence susceptible to be changed. <> Tcl Library