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[Bug c/11663] gcc ignores the cast and emits a warning
- From: "pinskia at physics dot uc dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 Jul 2003 18:14:38 -0000
- Subject: [Bug c/11663] gcc ignores the cast and emits a warning
- References: <20030724173442.11663.jashepherd@usa.net>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11663
pinskia at physics dot uc dot edu changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Keywords| |diagnostic
Resolution| |INVALID
Summary|gcc ignores the cast and |gcc ignores the cast and
|emits a warning |emits a warning
Target Milestone|3.4 |---
------- Additional Comments From pinskia at physics dot uc dot edu 2003-07-24 18:14 -------
The warning is correct because converting unsigned char to short will always be positive
or zero. GCC is keeping the range information for trans_ind, if you want to convert
unsigned char to signed short with trans_ind > 127 being negative add a cast to signed
char first.