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* [Bug c++/38540] New: Type of 'const int f ()'
@ 2008-12-16 12:04 wolfgang dot roehrl at gi-de dot com
2008-12-23 23:26 ` [Bug c++/38540] " pinskia at gcc dot gnu dot org
0 siblings, 1 reply; 2+ messages in thread
From: wolfgang dot roehrl at gi-de dot com @ 2008-12-16 12:04 UTC (permalink / raw)
To: gcc-bugs
Dear all,
I would like to post a fault report for the GNU C/C++ compiler 4.3.0.
Used invokation line for the GNU C++ compiler:
gcc -c -x c++ -ansi -Wall -Werror -mcpu=603e -fverbose-asm -mbig
-mmultiple -mstring -mstrict-align -meabi -msdata -fno-common
-fno-exceptions -fno-rtti -O3 -fno-section-anchors
-I<different include paths>
-D<different #define's>
X.CPP -oX.O
// example program
const int f ();
template <typename T_>
void g (T_&);
void h (void)
{ g(f()); }
GNU accepts the code fragment above which is illegal. It is illegal because
. Function f() yields a rvalue (3.10/5);
. the type of f() is "int" and not "const int" since only a class-type
rvalue can be const-qualified (3.10/9);
. so function g() should be instantiated as g<int>(int&) in the expression
"g(f())";
. the parameter "int&" of function g<int>(int&) cannot bind a non-const
rvalue (8.5.3/5).
BTW, the Comeau online compiler rejects the code above.
Kind regards
W. Roehrl
--
Summary: Type of 'const int f ()'
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: wolfgang dot roehrl at gi-de dot com
GCC build triplet: athlon-redhat-linux
GCC host triplet: i686-pc-mingw32
GCC target triplet: powerpc-rtems4.9
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38540
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/38540] Type of 'const int f ()'
2008-12-16 12:04 [Bug c++/38540] New: Type of 'const int f ()' wolfgang dot roehrl at gi-de dot com
@ 2008-12-23 23:26 ` pinskia at gcc dot gnu dot org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2008-12-23 23:26 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2008-12-23 23:24 -------
Confirmed. Not a regression.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC build triplet|athlon-redhat-linux |
GCC host triplet|i686-pc-mingw32 |
GCC target triplet|powerpc-rtems4.9 |
Keywords| |accepts-invalid
Known to fail| |3.3.3 4.0.0 4.3.0 4.4.0
Last reconfirmed|0000-00-00 00:00:00 |2008-12-23 23:24:42
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38540
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2008-12-16 12:04 [Bug c++/38540] New: Type of 'const int f ()' wolfgang dot roehrl at gi-de dot com
2008-12-23 23:26 ` [Bug c++/38540] " pinskia at gcc dot gnu dot org
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