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* [Bug c++/36430] New: Cannot convert a temporary to a non-const reference even with conversion operator @ 2008-06-03 18:39 gbrammer at gmx dot de 2008-08-21 11:44 ` [Bug c++/36430] " gcc-bugzilla at contacts dot eelis dot net 2008-08-21 12:05 ` paolo dot carlini at oracle dot com 0 siblings, 2 replies; 3+ messages in thread From: gbrammer at gmx dot de @ 2008-06-03 18:39 UTC (permalink / raw) To: gcc-bugs [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 870 bytes --] struct Foo { operator Foo & () { return *this; } }; void frobnicate(Foo &) { /* in reality, the Foo is changed here and returned */ } int main () { frobnicate (Foo()); } temporary.cpp:8: error: invalid initialization of non-const reference of type Foo& from a temporary of type Foo temporary.cpp:4: error: in passing argument 1 of void frobnicate(Foo&) This works with g++ 4.1, but does not work with 4.2 and 4.3. -- Summary: Cannot convert a temporary to a non-const reference even with conversion operator Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: gbrammer at gmx dot de http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36430 ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/36430] Cannot convert a temporary to a non-const reference even with conversion operator 2008-06-03 18:39 [Bug c++/36430] New: Cannot convert a temporary to a non-const reference even with conversion operator gbrammer at gmx dot de @ 2008-08-21 11:44 ` gcc-bugzilla at contacts dot eelis dot net 2008-08-21 12:05 ` paolo dot carlini at oracle dot com 1 sibling, 0 replies; 3+ messages in thread From: gcc-bugzilla at contacts dot eelis dot net @ 2008-08-21 11:44 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from gcc-bugzilla at contacts dot eelis dot net 2008-08-21 11:43 ------- This report is invalid. By 12.3.2, "A conversion function is never used to convert a (possibly cv-qualified) object to the (possibly cv-qualified) same object type (or a reference to it)." Comeau warns explicitly about this, saying: line 2: warning: "Foo::operator Foo &()" will not be called for implicit or explicit conversions -- gcc-bugzilla at contacts dot eelis dot net changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |gcc-bugzilla at contacts dot | |eelis dot net http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36430 ^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/36430] Cannot convert a temporary to a non-const reference even with conversion operator 2008-06-03 18:39 [Bug c++/36430] New: Cannot convert a temporary to a non-const reference even with conversion operator gbrammer at gmx dot de 2008-08-21 11:44 ` [Bug c++/36430] " gcc-bugzilla at contacts dot eelis dot net @ 2008-08-21 12:05 ` paolo dot carlini at oracle dot com 1 sibling, 0 replies; 3+ messages in thread From: paolo dot carlini at oracle dot com @ 2008-08-21 12:05 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from paolo dot carlini at oracle dot com 2008-08-21 12:04 ------- *** This bug has been marked as a duplicate of 26698 *** -- paolo dot carlini at oracle dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36430 ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2008-08-21 12:05 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2008-06-03 18:39 [Bug c++/36430] New: Cannot convert a temporary to a non-const reference even with conversion operator gbrammer at gmx dot de 2008-08-21 11:44 ` [Bug c++/36430] " gcc-bugzilla at contacts dot eelis dot net 2008-08-21 12:05 ` paolo dot carlini at oracle dot com
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