Re: Header files with enums instead of defines?

From: Scott Long (scottl_at_freebsd.org)
Date: 12/22/04

  • Next message: M. Warner Losh: "Re: Header files with enums instead of defines?" 
    Date: Wed, 22 Dec 2004 11:42:29 -0700
To: "M. Warner Losh" <imp@bsdimp.com>

    M. Warner Losh wrote:
    > In order to gain the benefits of the enums, errno would need to be an
    > enum errno_t or some such. This breaks C++ code that sets errno = 0,
    > since you can't assign integers to errno values.
    >
    > So even if you retained EBOGUS or whatever, this wouldn't work with
    > C++. errno has to be an int to work there.
    >
    > Warner

    I think you might have missed that nothing was actually being declared
    with the errno_t type, but rather the type was used as a cast for gdb.
    It's a neat trick, but still a little cumbersome unless gdb was taught
    about it or given some clever macros.

    Scott
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  • Next message: M. Warner Losh: "Re: Header files with enums instead of defines?"

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