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* [Bug c++/19564] New: -Wparentheses and other warnings: g++ is less sensitive than gcc
@ 2005-01-21 13:40 fm3 at os dot inf dot tu-dresden dot de
2005-01-21 14:11 ` [Bug c++/19564] -Wparentheses does not work with the C++ front-end pinskia at gcc dot gnu dot org
2005-01-21 14:12 ` pinskia at gcc dot gnu dot org
0 siblings, 2 replies; 3+ messages in thread
From: fm3 at os dot inf dot tu-dresden dot de @ 2005-01-21 13:40 UTC (permalink / raw)
To: gcc-bugs
g++ generates less warnings when using -Wparentheses than gcc. For instance
gcc warns about
if (a>0 & b>0)
...
(warning: suggest parentheses around comparison in operand of &) but g++ does
not. And gcc warns about
char a = 1024;
(warning: overflow in implicit constant conversion) but g++ does not.
--
Summary: -Wparentheses and other warnings: g++ is less sensitive
than gcc
Product: gcc
Version: 3.4.4
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: fm3 at os dot inf dot tu-dresden dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: i486-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19564
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/19564] -Wparentheses does not work with the C++ front-end
2005-01-21 13:40 [Bug c++/19564] New: -Wparentheses and other warnings: g++ is less sensitive than gcc fm3 at os dot inf dot tu-dresden dot de
@ 2005-01-21 14:11 ` pinskia at gcc dot gnu dot org
2005-01-21 14:12 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-01-21 14:11 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-21 14:11 -------
(In reply to comment #0)
> g++ generates less warnings when using -Wparentheses than gcc. For instance
> gcc warns about
>
> if (a>0 & b>0)
> ...
This because this warning is only in the C front-end.
Please file the "overflow in implicit constant conversion" warning into a different bug.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |diagnostic
Last reconfirmed|0000-00-00 00:00:00 |2005-01-21 14:11:16
date| |
Summary|-Wparentheses and other |-Wparentheses does not work
|warnings: g++ is less |with the C++ front-end
|sensitive than gcc |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19564
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/19564] -Wparentheses does not work with the C++ front-end
2005-01-21 13:40 [Bug c++/19564] New: -Wparentheses and other warnings: g++ is less sensitive than gcc fm3 at os dot inf dot tu-dresden dot de
2005-01-21 14:11 ` [Bug c++/19564] -Wparentheses does not work with the C++ front-end pinskia at gcc dot gnu dot org
@ 2005-01-21 14:12 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-01-21 14:12 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-21 14:12 -------
Note here is the testcase:
int f(int a, int b)
{
if (a>0 & b>0) /* { dg-warning "" } */
return 210;
return 0;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19564
^ permalink raw reply [flat|nested] 3+ messages in thread
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2005-01-21 13:40 [Bug c++/19564] New: -Wparentheses and other warnings: g++ is less sensitive than gcc fm3 at os dot inf dot tu-dresden dot de
2005-01-21 14:11 ` [Bug c++/19564] -Wparentheses does not work with the C++ front-end pinskia at gcc dot gnu dot org
2005-01-21 14:12 ` pinskia at gcc dot gnu dot org
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