libstdc++: use __is_enum built-in trait
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Commit Message
This patch replaces is_enum<T>::value with __is_enum built-in trait in
the type_traits header.
libstdc++-v3/ChangeLog:
* include/std/type_traits (__make_unsigned_selector): Use
__is_enum built-in trait.
(__make_signed_selector): Likewise.
(__underlying_type_impl): Likewise.
Signed-off-by: Ken Matsui <kmatsui@cs.washington.edu>
---
libstdc++-v3/include/std/type_traits | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
@@ -1740,7 +1740,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Select between integral and enum: not possible to be both.
template<typename _Tp,
bool _IsInt = is_integral<_Tp>::value,
- bool _IsEnum = is_enum<_Tp>::value>
+ bool _IsEnum = __is_enum(_Tp)>
class __make_unsigned_selector;
template<typename _Tp>
@@ -1900,7 +1900,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Select between integral and enum: not possible to be both.
template<typename _Tp,
bool _IsInt = is_integral<_Tp>::value,
- bool _IsEnum = is_enum<_Tp>::value>
+ bool _IsEnum = __is_enum(_Tp)>
class __make_signed_selector;
template<typename _Tp>
@@ -2353,7 +2353,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
struct __common_type_fold<_CTp, _Rp, void>
{ };
- template<typename _Tp, bool = is_enum<_Tp>::value>
+ template<typename _Tp, bool = __is_enum(_Tp)>
struct __underlying_type_impl
{
using type = __underlying_type(_Tp);