http://llvm.org/bugs/show_bug.cgi?id=16090
Bug ID: 16090
Summary: templated constexpr function with return type
deduction does not compile
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
The following program does not compile with clang r181693:
constexpr auto foo() { return 0; }
template <typename T>
auto bar() { return 0; }
template <typename T>
constexpr auto baz() { return 0; }
This results in:
% clang++ -std=c++1y -v -c clang.cpp
clang version 3.4 (trunk 181693)
[...]
clang.cpp:7:16: error: constexpr function's return type 'auto' is not a literal
type
constexpr auto baz() { return 0; }
^
1 error generated.
- The non-templated constexpr variant "foo" compiles.
- The templated non-constexpr variant "bar" compiles, too.
- The templated constexpr variant "baz" does not compile, even though its body
is identical to the other two.
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