rand(3C)                                                 rand(3C)



     NAME
          rand, srand - simple random-number generator

     SYNOPSIS
          int rand ( )

          void srand (seed)
          unsigned seed;

     DESCRIPTION
          rand uses a multiplicative congruential random-number
          generator with period 232 that returns successive pseudo-
          random numbers in the range from 0 to 215-1.

          srand can be called at any time to reset the random-number
          generator to a random starting point.  The generator is
          initially seeded with a value of 1.

     NOTE
          The spectral properties of rand leave a great deal to be
          desired.  drand48(3C) provides a much better, though more
          elaborate, random-number generator.

     SEE ALSO
          drand48(3C).






























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