[Bug c++/34783] New: unwanted limited range warning in template code

[Bug c++/34783] New: unwanted limited range warning in template code

[mrs at apple dot com]

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It seems silly for a project to get warnings in the below case.  It seems silly
to require that one specialize just to avoid the warning.

$ cat t.cc
void bar();
template <class T>
void foo(T t) {
  if (t < 257) bar();
}

void bee() {
  foo(1);
  foo(char(1));
}
$ g++  t.cc -c
t.cc: In function ‘void foo(T) [with T = char]’:
t.cc:9:   instantiated from here
t.cc:4: warning: comparison is always true due to limited range of data type


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           Summary: unwanted limited range warning in template code
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mrs at apple dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34783

[Bug c++/34783] unwanted limited range warning in template code

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2008-01-14 19:42 -------
You know bugzilla has a search for a reason?

*** This bug has been marked as a duplicate of 11856 ***


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pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34783

[Bug c++/34783] unwanted limited range warning in template code

[mrs at apple dot com]

------- Comment #2 from mrs at apple dot com  2008-01-14 20:08 -------
No, that bug report has a hack around, not a fix.  A fix would make it work by
default out of the box.

A fix would avoid these for templated types and leave them for non-templated
types.


-- 

mrs at apple dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34783

[Bug c++/34783] unwanted limited range warning in template code

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2008-01-14 21:38 -------
And that bug is not closed yet so what is the issue there?

*** This bug has been marked as a duplicate of 11856 ***


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34783

[Bug c++/34783] unwanted limited range warning in template code

[mrs at apple dot com]

------- Comment #4 from mrs at apple dot com  2008-01-14 23:21 -------
Ah, I thought someone just hadn't gotten around to moving the state to fixed,
sorry.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34783