Hello,
Yura Pakhuchiy wrote:
> It looks like sparse do not understand constructions like L'\0'.
yepp, it doesn't. I have run into that problem 2 years ago. But for Wine
that is actually a "feature" as wide char/string literals are forbidden
aka cannot be used. Thus my interest in adding support for that in
sparse died.
bye
michael
>
> .-(~)------------------------------------------------------------(yura@yura-tl)-
> `--> cat b.c
> int main(void)
> {
> L'\0';
> return 0;
> }
> .-(~)------------------------------------------------------------(yura@yura-tl)-
> `--> gcc b.c
> .-(~)------------------------------------------------------------(yura@yura-tl)-
> `--> cgcc b.c
> b.c:3:10: error: Expected ; at end of statement
> b.c:3:10: error: got `\0'
> b.c:3:9: error: undefined identifier `L'
>
> This causes problems with /usr/include/wchar.h
> and /usr/include/bits/wchar.h includes from ubuntu.
>
> /usr/include/bits/wchar.h:38:8: error: garbage at end: `\0' - 1 > 0
>
> /usr/include/wchar.h:393:51: error: Expected ) in expression
> /usr/include/wchar.h:393:51: error: got `\0'
>
> Relevant lines from these headers:
>
> extern int __wctob_alias (wint_t __c) __asm ("wctob");
> __extern_inline int
> __NTH (wctob (wint_t __wc))
> { return (__builtin_constant_p (__wc) && __wc >= L'\0' && __wc <= L'\x7f'
> ? (int) __wc : __wctob_alias (__wc)); }
>
> and
>
> #ifdef __WCHAR_UNSIGNED__
> #define __WCHAR_MIN L'\0'
>
> /* Failing that, rely on the preprocessor's knowledge of the
> signedness of wchar_t. */
> #elif L'\0' - 1 > 0
> #define __WCHAR_MIN L'\0'
> #else
> #define __WCHAR_MIN (-__WCHAR_MAX - 1)
> #endif
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