Rand.SetPart of Rand module

Syntax   Rand.Set (seed : nat4)

Description   This procedure sets the seed for sequences of pseudo-random numbers produced by Rand.Real and Rand.Int. This allows identical executions of the same program to produce identical results.

Example   This program simulates the repeated rolling of a six sided die. Each time the program runs, the same sequence of rolls occurs.

        Rand.Set (16#1234ABCD)
            put "Rolled ", Rand.Int (1, 6)
        end loop
Details   If Rand.Reset and Rand.Set are not used, each time a program runs Rand.Real and Rand.Int use a different pseudo-random number sequence. To get the same sequence each time (actually, to start the sequence at a different point), use Rand.Reset or Rand.Set.

To use several sequences of repeatable pseudo-random number sequences, use the Rand.Seed and Rand.Next procedures.

Status   Exported qualified.

This means that you can only call the function by calling Rand.Set, not by calling Set.

See also   Rand.Reset, Rand.Int, Rand.Real, Rand.Seed and Rand.Next.