gcc/ada/a-coprnu.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT LIBRARY COMPONENTS                          --
   4 --                                                                          --
   5 --                       ADA.CONTAINERS.PRIME_NUMBERS                       --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 -- This specification is adapted from the Ada Reference Manual for use with --
  10 -- GNAT.  In accordance with the copyright of that document, you can freely --
  11 -- copy and modify this specification,  provided that if you redistribute a --
  12 -- modified version,  any changes that you have made are clearly indicated. --
  13 --                                                                          --
  14 ------------------------------------------------------------------------------
  15
  16 package Ada.Containers.Prime_Numbers is
  17 pragma Pure (Prime_Numbers);
  18
  19    type Primes_Type is array (Positive range <>) of Hash_Type;
  20
  21    Primes : constant Primes_Type :=
  22      (53,         97,         193,       389,       769,
  23       1543,       3079,       6151,      12289,     24593,
  24       49157,      98317,      196613,    393241,    786433,
  25       1572869,    3145739,    6291469,   12582917,  25165843,
  26       50331653,   100663319,  201326611, 402653189, 805306457,
  27       1610612741, 3221225473, 4294967291);
  28
  29    function To_Prime (Length : Count_Type) return Hash_Type;
  30
  31 end Ada.Containers.Prime_Numbers;