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Make internal class __wrap_iter constexpr when not using libc++'s debugging mode. Introduce a new macro _LIBCPP_CONSTEXPR_IF_NODEBUG to mark this.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@337019 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2018-07-13 16:35:26 +00:00
parent 9765ed0367
commit c005c7e34c
3 changed files with 66 additions and 56 deletions
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4
include/algorithm
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@@ -1708,7 +1708,7 @@ __unwrap_iter(move_iterator<_Tp*> __i)
#if _LIBCPP_DEBUG_LEVEL < 2
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG
typename enable_if
<
is_trivially_copy_assignable<_Tp>::value,
@@ -1722,7 +1722,7 @@ __unwrap_iter(__wrap_iter<_Tp*> __i)
#else
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG
typename enable_if
<
is_trivially_copy_assignable<_Tp>::value,