http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52755
Bug #: 52755
Summary: Error on use of implicitly deleted operator=
Classification: Unclassified
Product: gcc
Version: 4.6.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: holger.h...@sap.com
Following code compiles fine with every gcc, with every g++ -std=c++98,
with g++-4.5 -std=c++0x, but not with g++ -std=c++0x (or -std=c++11) since 4.6.
typedef volatile struct t1s { int a; } t1;
typedef struct t2s { t1 b; } t2;
t2 x, y;
void foo(void)
{
x = y;
}
compile with: g++ -std=c++0x vola.cpp
vola.cpp: In function 'void foo()':
vola.cpp:7:7: error: use of deleted function 't2s& t2s::operator=(const t2s&)'
vola.cpp:2:16: error: 't2s& t2s::operator=(const t2s&)' is implicitly deleted
because the default definition would be ill-formed:
vola.cpp:2:16: error: no matching function for call to 't1s::operator=(const
volatile t1&) volatile'
vola.cpp:2:16: note: candidates are:
vola.cpp:1:25: note: t1s& t1s::operator=(const t1s&)
vola.cpp:1:25: note: no known conversion for argument 1 from 'const volatile
t1' to 'const t1s&'
vola.cpp:1:25: note: t1s& t1s::operator=(t1s&&)
vola.cpp:1:25: note: no known conversion for argument 1 from 'const volatile
t1' to 't1s&&'
