http://llvm.org/bugs/show_bug.cgi?id=16851
Bug ID: 16851
Summary: Templates in Microsoft Mode do not allow casting from
one type to another
Product: clang
Version: unspecified
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
We should allow the following but we do not:
template <const void *>
struct foo {
};
extern const int x;
foo<(const void *)&x> a;
foo<&x> b;
foo<((const void *)&x)> c;
instead, we claim:
<stdin>:6:5: error: non-type template argument does not refer to any
declaration
foo<(const void *)&x> a;
^~~~~~~~~~~~~~~~
<stdin>:1:23: note: template parameter is declared here
template <const void *>
^
<stdin>:7:6: error: non-type template argument of type 'const int *' cannot be
converted to a value of type 'const void *'
foo<&x> b;
^
<stdin>:1:23: note: template parameter is declared here
template <const void *>
^
<stdin>:8:5: warning: address non-type template argument cannot be surrounded
by parentheses
foo<((const void *)&x)> c;
^~~~~~~~~~~~~~~~~~
<stdin>:8:6: error: non-type template argument does not refer to any
declaration
foo<((const void *)&x)> c;
^~~~~~~~~~~~~~~~
<stdin>:1:23: note: template parameter is declared here
template <const void *>
^
1 warning and 3 errors generated
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