Variable size/Set: Difference between revisions

abc=12345678901111111112222222222333333333344444444445555555555.66</lang>

 

=={{header|Tcl}}==

In Tcl, most values are (Unicode) strings. Their size is measured in characters, and the minimum size of a string is of course 0.

% trace var grill w {format_trace %-10s}

% puts "/[set grill bar]/"

<lang Tcl>% proc range_trace {n _var el op} {upvar 1 $_var v; set v [string range $v 0 [incr n -1]]}