[ECOS] Re: casts to a type other than an integral or enumeration type in a constant-expression

[Andreas Schwab]

Fred Fish <fnf@public.ninemoons.com> writes:

|> The latest eCos sources no longer build with the latest gcc.  The
|> problem can be tracked down to C++ code like the following in eCos:
|> 
|>   #include <signal.h>
|> 
|>   void foo (__sighandler_t __sighdl)
|>   {
|>     switch ((int) __sighdl)
|>       {
|>       case (int) SIG_DFL:
|>         ;
|>       case (int) SIG_IGN:
|>         ;
|>       }
|>   }

This code is completely bogus anyway, even if it might be valid.  Casting
a pointer to int is dubious at best and will fail miserably if sizeof
(__sighandler_t) > sizeof (int).

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
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