gcc.dg/cpp/charconst.c vs. WCHAR_TYPE "long int"

[Neil Booth]

Franz Sirl wrote:-

> Hi,
> 
> the testcase gcc.dg/cpp/charconst.c fails on powerpc-linux-gnu because of 
> an extra warning on this line:
> 
>   c = L'very long';     /* { dg-warning "too long" "long wide charconst" } 
>   */
> 
> /home/fsirl/cvsx/gcc31/gcc/testsuite/gcc.dg/cpp/charconst.c: In function 
> `foo':
> /home/fsirl/cvsx/gcc31/gcc/testsuite/gcc.dg/cpp/charconst.c:28: warning: 
> overflow in implicit constant conversion
> 
> An additional (int) cast silences this extra warning, is this the right 
> thing to do?

I don't think so.  If the warning is correct, then lets make the type a
long.

But first I'd like to understand why this is happening.  What is the
type of wchar_t on your system and how many bytes is it?  What about
int?  I can only see this happening if your int is 16 bits and wchar_t
32, or 32 / 64 respectively.

Neil.