http://llvm.org/bugs/show_bug.cgi?id=18283
Bug ID: 18283
Summary: Const int initialized with curly braces is not a
compile time constant
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
While compiling the following code in C++98 or C++03 (not in C++11) mode Clang
produces an error:
template <int> struct A {};
int const i = { 42 };
typedef A<i> Ai;
The error:
test.cpp:4:11: error: non-type template argument of type 'int' is not an
integral constant expression
typedef A<i> Ai;
^
test.cpp:4:11: note: initializer of 'i' is not a constant expression
test.cpp:3:11: note: declared here
int const i = { 42 };
^
As far as I understand "i = 42" and "i = { 42 }" should be equivalent and
should produce no error.
The following code compiles without problems:
int const j = 42;
typedef A<j> Aj;
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