On Saturday, 16 December 2017 at 16:46:49 UTC, Jacob Carlborg
wrote:
On 2017-12-16 15:11, Vino wrote:
Hi All,
Request your help on reserve an dynamic array when the
capacity is reached to a point(eg: 80%) so the array to extend
the reserve by next 20%
Example:
Array!string Test;
Test. reserve(100) - Initall
Test =(.........) - The number of entries are dynamic
if (array.capacity > 80%) { array.reserve(100+20%)
There's a "capacity" property which you can use. Compare that
to the length of the array to know when it has reach 80%.
Hi Jacob,
Thank you , yes we can use the length property and calculate
the capacity, but the question is how to implement it
dynamically, so let me explain a bit further.
1> Let assume that an array named Size is defined
string ConfigFile = "Test.txt" //The size of the file is not
known.
Array!string Size
2> Reserve the size of the array Test.
Size.reserve(100) //Initial allocation
3> Appending data
Size = File(ConfigFile).byLineCopy();
4> Let us assume the file Test.txt contains 50,000 lines.
5> As per step 2 we have reserved the array to 100 which means
that the array can hold 100 lines.
6> Check for every 1 mins if the length of the array(Size) is
above 80(lines), then increase the reservation of the array by
20, Size.reserve = (Size.capacity + 20).
7> Step 3 and Step 6 should be running parallel
8> Once step 3 is completed Step 6 should also be ended.
From,
Vino.B
