Description

   The lcong48 function generates pseudorandom numbers using the
   linear congruential algorithm and 48-bit integer arithmetic.

   You can use lcong48 to initialize the random number generator
   before you call any of the following functions:

      drand48
      lrand48
      mrand48

   The lcong48 function specifies the initial Xi value, the
   multiplier value a, and the addend value c. The param array
   elements specify the following:

   param[0-   Xi
   2]
   param[3-   Multiplier a value
   5]
   param[6]   16-bit addend c value

   After lcong48 has been called, a subsequent call to either
   srand48 or seed48 restores the standard a and c as specified
   previously.

   The lcong48 function does not return a value.

   See also drand48, lrand48, mrand48, srand48, and seed48.