objarray set <obj> {<value_1> ... <value_n>}|<index> <value>
Set the value of the item $index (from 0 to n-1) with the value $value, or all values from a list {value_1 ... value_n}. To set some index the array space must be allocated previously with a size greater of the index.
e.g.
set obj [objarray new intarray 3 0]
# -> 0 0 0
objarray set $obj {6 3 8}
# -> 6 3 8
# in floating point arrays, 'nan' values are also allowed
set oa [ objarray new doublearray 4 nan]
# --> NaN(7ffffffffffff) NaN(7ffffffffffff) NaN(7ffffffffffff) NaN(7ffffffffffff)
objarray set $oa 0 0.123
# --> 0.123 NaN(7ffffffffffff) NaN(7ffffffffffff) NaN(7ffffffffffff)
objarray set $oa 0 nan
# --> NaN(7ffffffffffff) NaN(7ffffffffffff) NaN(7ffffffffffff) NaN(7ffffffffffff)