http://llvm.org/bugs/show_bug.cgi?id=11614
Bug #: 11614
Summary: Cannot assign in constexpr initialization
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++0x
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
struct Foo {};constexpr Foo foo = Foo();
constexpr.cc:1:29: error: constexpr variable 'foo' must be initialized by a
constant expression
The assignment should be allowed, because the value of Foo() is known at
compile time (it doesn't make a difference if I make the struct non-empty and
add an explicit constexpr constructor, by the way).
The following works:
struct Foo {};constexpr Foo foo();
This problem occurs with libstdc++ 4.6 in allocator.h:
struct allocator_arg_t { };
constexpr allocator_arg_t allocator_arg = allocator_arg_t();
svn trunk 146862
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