[Bug c++/20019] incorrect overflow warning

neil at daikokuya dot co dot uk gcc-bugzilla@gcc.gnu.org
Thu Feb 17 16:28:00 GMT 2005


------- Additional Comments From neil at daikokuya dot co dot uk  2005-02-17 11:34 -------
Subject: Re:  incorrect overflow warning

pinskia at gcc dot gnu dot org wrote:-

> 
> ------- Additional Comments From pinskia at gcc dot gnu dot org  2005-02-17 03:14 -------
> No the warning is correct as char on a lot of targets is signed by default so promoting (char)0x80 to int 
> will give 0xFFFFFF80.

This explanation just doesn't make sense.

What should get a warning is the assignment of 0x80 to a char.

Neil.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20019



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