SUBROUTINES
    rand		- standard random number generator
INVOCATION
    srand( seed )
      unsigned seed;
    int rand()
EXPLANATION
    Rand(3) uses a full period, mixed linear congruential
    generator to return a pseudo-random number in the
    range 0 to 32767 {INT_MAX}. The formula used is:
      seed = (1103515245 * seed + 12345) % 2147483648
    Srand(3) sets the seed to an initial value, the default
    is 1.
RESULTS
    Rand(3) returns 15 bits from the high order word of seed.
REFERENCES
    lrand(3)