Constants

This is a discussion on Constants within the C++ Programming forums, part of the General Programming Boards category; Im probably making a fool of myself here but here goes Can anyone explain why we need statements like this ...

  1. #1
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    Constants

    Im probably making a fool of myself here but here goes


    Can anyone explain why we need statements like this in C++


    Code:
    
    #define FPF_FREE 0x0001  /* free the fp structure */

    I know it's defining the variable FPF_FREE to point to an address, but how would i interpret 0x0001


    And how would i know what gets put at 0x0001


    Marky_Mark
    Last edited by Marky_Mark; 11-26-2001 at 06:05 PM.

  2. #2
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    If you want to understand stuff like this, it might be a good idea to learn asm.

  3. #3
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    0x0001 is a value in hex not necessarily an address.
    Sometimes it is beneficial to use a different notation.

  4. #4
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    Im interested in low level programming (asm), but i need to know if it's a necessity for programming in C++


    And when is it beneficial to use a different notation


    Marky_Mark

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