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Re: Overriding the MS-Windows wint_t type considered harmful


From: Bruno Haible
Subject: Re: Overriding the MS-Windows wint_t type considered harmful
Date: Mon, 01 May 2017 12:27:57 +0200
User-agent: KMail/5.1.3 (Linux/4.4.0-75-generic; KDE/5.18.0; x86_64; ; )

I wrote:
> In the particular case of 'wint_t': The problem is no such much that
>   wint_t = 'unsigned short'
> is not unchanged by argument promotions, but rather that this type
> is not larger than 'wchar_t'. This piece of code
> 
>   wint_t c = getwchar();
>   if (c == WEOF) goto eof_handling;
> 
> is only correct when wint_t is larger than wchar_t. The original
> definition of WEOF is (wint_t)0xFFFF.

Oops, gnulib actually redefines wint_t but not WEOF. I was too shy to
redefine WEOF.

So, the only reason why gnulib redefines wint_t is standards compliance
(ISO C 99 section 7.24.1.(2), to be precise).

Bruno




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