[Bug c++/33736] New: "error: integer constant is too large for ‘long’ type" incorrect for C++0x

[Bug c++/33736] New: "error: integer constant is too large for ‘long’ type" incorrect for C++0x

[lloyd at randombit dot net]

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Integer constants that don't fit into a long cause a pedwarn in GCC as of the
20070907 snapshot (this has been the behavior for a while). However this is
incorrect for C++0x which does (at least in the WG draft) allows for something
to be placed in a long long or unsigned long long if it doesn't fit into
anything smaller (section 2.13.1.2 + table 5). However GCC pedwarns even with
-std=c++0x or -std=gnu++0x

(On x86-64 or other 64-bit machines this behavior can be observed while
compiling with -m32).

$ g++-4.3-20070907 -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.3-20070907/configure --program-suffix=-4.3-20070907
--enable-language=c,c++ --prefix=/home/jack/opt --with-mpfr=/home/jack/opt
Thread model: posix
gcc version 4.3.0 20070907 (experimental) (GCC)


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           Summary: "error: integer constant is too large for ‘long’ type"
                    incorrect for C++0x
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: lloyd at randombit dot net
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33736

[Bug c++/33736] "error: integer constant is too large for ‘long’ type" incorrect for C++0x

[manu at gcc dot gnu dot org]

------- Comment #1 from manu at gcc dot gnu dot org  2007-11-13 05:12 -------
Confirmed as far as I know. I have seen a similar bug somewhere, thoug.


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manu at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |manu at gcc dot gnu dot org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-11-13 05:12:14
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33736

[Bug c++/33736] "error: integer constant is too large for ‘long’ type" incorrect for C++0x

[manu at gcc dot gnu dot org]

------- Comment #2 from manu at gcc dot gnu dot org  2008-08-23 12:37 -------
I think this is a duplicate of 13358. The warning should be conditional on
Wlong-long and Wlong-long should be disabled in -std=c++0x (in fact it is
already). I am testing a patch btw.

*** This bug has been marked as a duplicate of 13358 ***


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manu at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33736