https://llvm.org/bugs/show_bug.cgi?id=27402
Bug ID: 27402
Summary: __restrict qualifier not recognized in template
specialization
Product: clang
Version: 3.8
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: bkietz.bor...@gmail.com
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
I tried to write a trait class for detecting `__restrict` qualification on
references/pointers:
```
template <typename T>
struct is_restrict : std::false_type {};
template <typename T>
struct is_restrict<T * __restrict> : std::true_type {};
template <typename T>
struct is_restrict<T & __restrict> : std::true_type {};
template <typename T>
struct is_restrict<T && __restrict> : std::true_type {};
static_assert(is_restrict<int & __restrict>::value, "int & __restrict");
```
This static_assert passed in GCC and MSVC, but failed in Clang. The
specialization for restrict pointer functioned as expected.
http://melpon.org/wandbox/permlink/2BEkXcmEE0MmOhwl
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