13 March 2009 02:35:18 PM

FUNCTION_POINTER
  C++ version

  Examples of function pointers.
  We define a variable FUNC which can point to a function.
  Our declaration indicates only that FUNC has two inputs
  of type double, and returns a double as its value.

  We will now set FUNC to a MIN, a MAX and a SUM function
  successively, and invoke it with 5 random sets of input.

  FUNC = R8_MIN
  -----A----  -----B----  C = FUNC ( A, B )

    0.621921    0.624163    0.621921
    0.314565    0.888536    0.314565
     0.62248   0.0180997   0.0180997
    0.200908    0.667529    0.200908
    0.165277    0.803795    0.165277

  FUNC = R8_MAX
  -----A----  -----B----  C = FUNC ( A, B )

    0.621921    0.624163    0.624163
    0.314565    0.888536    0.888536
     0.62248   0.0180997     0.62248
    0.200908    0.667529    0.667529
    0.165277    0.803795    0.803795

  FUNC = R8_SUM
  -----A----  -----B----  C = FUNC ( A, B )

    0.218418    0.956318     1.17474
    0.829509    0.561695      1.3912
    0.415307   0.0661187    0.481426
    0.257578    0.109957    0.367535
    0.043829    0.633966    0.677795

FUNCTION_PONTER:
  Normal end of execution.

13 March 2009 02:35:18 PM