Re: Traditional C rejects ISO C



* no6 pobox com (number6 ip120 gte156 dsl-acs2 sea iinet com) wrote:
> What's "traditional C?"  Is that K&R C, or the C formerly known as
> c89, ANSI X3.159-1989?  Then there is ISO C, ISO/IEC 9899:1990.
> Then there is C99, ISO 9899:1999.  

Good question, I don't know. All I know is what I get in the warning.

> For the purposes of your question, I'd imagine you are refering to 
> ISO C as c99 and "traditional C" as c89.  As K&R C does not support
> function prototypes, I cannot imagine you are using that original oldie
> but goodie.
> 
> A good description of the differences between c99 and c89 can be found here:
> 
>   http://www.fact-index.com/c/c_/c_programming_language.html
> 
> These seem to be the most important differences:
> 
> The new features in C99 include:
>     * inline functions
>     * freeing of restrictions on the location of variable 
>       declarations (as in C++)
>     * addition of several new data types, including long long 
>       int (to reduce the pain of the looming 32-bit to 64-bit transition),
>       an explicit boolean data type, and a complex type representing complex
>       numbers
>     * variable-length arrays
>     * official support for one-line comments beginning with //, 
>       borrowed from C++
>     * several new library functions, such as snprintf()
>     * several new header files, such as stdint.h
> 
> Interestingly, gcc supports most of c99, but Borland and Microsoft C don't.

I thank you for your reply, however it doesn't really answer my
question. First, I'm only using gcc, so Borland and MS C don't count.
Second, I'm obviouslly using gcc's -Wtraditional setting for these
errors to come up, so my question was: how do I get rid of these errors
so that everything works correctly while still using -Wtraditional?
Should I even be using -Wtraditional?

-- 
 .''`.      Carl B. Constantine
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