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* [Bug c++/18460] New: -2147483648 not considered an "int"
@ 2004-11-13 10:45 jens dot maurer at gmx dot net
2004-11-13 10:47 ` [Bug c++/18460] " jens dot maurer at gmx dot net
2004-11-13 13:41 ` schwab at suse dot de
0 siblings, 2 replies; 3+ messages in thread
From: jens dot maurer at gmx dot net @ 2004-11-13 10:45 UTC (permalink / raw)
To: gcc-bugs
Compiling
const int n = -2147483648;
results in the warning
minus-max.cc:1: warning: this decimal constant is unsigned only in ISO C90
which is wrong: The constant is exactly -2^31, which fits into a (32 bit) int,
thus no automatic conversions to larger types should occur.
--
Summary: -2147483648 not considered an "int"
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jens dot maurer at gmx dot net
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18460
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/18460] -2147483648 not considered an "int"
2004-11-13 10:45 [Bug c++/18460] New: -2147483648 not considered an "int" jens dot maurer at gmx dot net
@ 2004-11-13 10:47 ` jens dot maurer at gmx dot net
2004-11-13 13:41 ` schwab at suse dot de
1 sibling, 0 replies; 3+ messages in thread
From: jens dot maurer at gmx dot net @ 2004-11-13 10:47 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |niemayer at isg dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18460
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/18460] -2147483648 not considered an "int"
2004-11-13 10:45 [Bug c++/18460] New: -2147483648 not considered an "int" jens dot maurer at gmx dot net
2004-11-13 10:47 ` [Bug c++/18460] " jens dot maurer at gmx dot net
@ 2004-11-13 13:41 ` schwab at suse dot de
1 sibling, 0 replies; 3+ messages in thread
From: schwab at suse dot de @ 2004-11-13 13:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From schwab at suse dot de 2004-11-13 13:41 -------
There are no negative constants/literals in C and C++. 2147483648 is not
representable in (32-bit) int or long, so its type is unsigned in C90, but in
C++98 the behaviour is undefined.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18460
^ permalink raw reply [flat|nested] 3+ messages in thread
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2004-11-13 10:45 [Bug c++/18460] New: -2147483648 not considered an "int" jens dot maurer at gmx dot net
2004-11-13 10:47 ` [Bug c++/18460] " jens dot maurer at gmx dot net
2004-11-13 13:41 ` schwab at suse dot de
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