Standard fixed-size types

This is a discussion on Standard fixed-size types within the C++ Programming forums, part of the General Programming Boards category; I need to know where I can find info on standard fixed-size C++ types, meaning stuff like __int32 and so ...

  1. #1
    Confused Magos's Avatar
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    Standard fixed-size types

    I need to know where I can find info on standard fixed-size C++ types, meaning stuff like __int32 and so on but some may be compiler-dependant. It must be standard C++.
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    Just Lurking Dave_Sinkula's Avatar
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    There is nothing standard for exact-width integers in C++.
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

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    The only guaranteed fixed-size type the C++ standard provides is sizeof(char) == 1. All the rest are compiler-dependent. On some compilers you will even find that sizeof(short)==sizeof(int)==sizeof(long)

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    Confused Magos's Avatar
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    Ouch. So what would my best way to work around this be then? Nested ifdef:s depending on compiler and system? Any info on this?
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    Just Lurking Dave_Sinkula's Avatar
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    There are some examples here on the Standards and Compilers pages (at the very bottom).
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

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