http://llvm.org/bugs/show_bug.cgi?id=7954
Summary: Clang erronously compiles double initialization of
const static int
Product: clang
Version: unspecified
Platform: PC
OS/Version: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
The following program erronously compiles on Clang
class Prasoon{
static const int dummy = 0;
};
int const Prasoon::dummy = 0;
int main(){}
According to C++-03 (Section 9.4.2-3)
If a static data member is of const literal type, its declaration in the class
definition can specify a brace-or- equal-initializer in which every
initializer-clause that is an assignment-expression is a constant expression. A
static data member of literal type can be declared in the class definition with
the constexpr specifier; if so, its declaration shall specify a
brace-or-equal-initializer in which every initializer-clause that is an
assignment-expression is a constant expression. [ Note: In both these cases,
the member may appear in constant expressions. — end note ] The member shall
still be defined in a namespace scope if it is used in the program and the
namespace scope definition shall not contain an initializer.
More discussion here :
http://stackoverflow.com/questions/3531296/have-i-found-a-bug-in-clang
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