basis/math/floats/half/half-tests.factor

   1 USING: accessors alien.c-types alien.syntax math.floats.half kernel
   2 math tools.test specialized-arrays alien.data classes.struct ;
   3 SPECIALIZED-ARRAY: half
   4 IN: math.floats.half.tests
   5
   6 [ 0x0000 ] [  0.0  half>bits ] unit-test
   7 [ 0x8000 ] [ -0.0  half>bits ] unit-test
   8 [ 0x3e00 ] [  1.5  half>bits ] unit-test
   9 [ 0xbe00 ] [ -1.5  half>bits ] unit-test
  10 [ 0x7c00 ] [  1/0. half>bits ] unit-test
  11 [ 0xfc00 ] [ -1/0. half>bits ] unit-test
  12 [ 0x7eaa ] [ NAN: aaaaaaaaaaaaa half>bits ] unit-test
  13
  14 ! too-big floats overflow to infinity
  15 [ 0x7c00 ] [   65536.0 half>bits ] unit-test
  16 [ 0xfc00 ] [  -65536.0 half>bits ] unit-test
  17 [ 0x7c00 ] [  131072.0 half>bits ] unit-test
  18 [ 0xfc00 ] [ -131072.0 half>bits ] unit-test
  19
  20 ! too-small floats flush to zero
  21 [ 0x0000 ] [  1.0e-9 half>bits ] unit-test
  22 [ 0x8000 ] [ -1.0e-9 half>bits ] unit-test
  23
  24 [  0.0  ] [ 0x0000 bits>half ] unit-test
  25 [ -0.0  ] [ 0x8000 bits>half ] unit-test
  26 [  1.5  ] [ 0x3e00 bits>half ] unit-test
  27 [ -1.5  ] [ 0xbe00 bits>half ] unit-test
  28 [  1/0. ] [ 0x7c00 bits>half ] unit-test
  29 [ -1/0. ] [ 0xfc00 bits>half ] unit-test
  30 [  3.0  ] [ 0x4200 bits>half ] unit-test
  31 [    t  ] [ 0x7e00 bits>half fp-nan? ] unit-test
  32
  33 STRUCT: halves
  34     { tom half }
  35     { dick half }
  36     { harry half }
  37     { harry-jr half } ;
  38
  39 [ 8 ] [ halves heap-size ] unit-test
  40
  41 [ 3.0 ] [
  42     halves <struct>
  43         3.0 >>dick
  44     dick>>
  45 ] unit-test
  46
  47 [ half-array{ 1.0 2.0 3.0 1/0. -1/0. } ]
  48 [ { 1.0 2.0 3.0 1/0. -1/0. } half >c-array ] unit-test
  49