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| author | Marshall Clow <mclow.lists@gmail.com> | 2019-02-06 16:10:25 +0000 |
|---|---|---|
| committer | Marshall Clow <mclow.lists@gmail.com> | 2019-02-06 16:10:25 +0000 |
| commit | c8879ab2fd9565120e835abc84e0ad9f66bfd021 (patch) | |
| tree | 89fa781875468f7e3d3d52f9e7f7e9db53819a5e /libcxx/include/algorithm | |
| parent | d7cb5b8a3304bd804c0e94e62c7a13610e158873 (diff) | |
| download | bcm5719-llvm-c8879ab2fd9565120e835abc84e0ad9f66bfd021.tar.gz bcm5719-llvm-c8879ab2fd9565120e835abc84e0ad9f66bfd021.zip | |
Add a specialization for '__unwrap_iter' to handle const interators. This enables the 'memmove' optimization for std::copy, etc.
llvm-svn: 353311
Diffstat (limited to 'libcxx/include/algorithm')
| -rw-r--r-- | libcxx/include/algorithm | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libcxx/include/algorithm b/libcxx/include/algorithm index b52d445225b..7da753a490d 100644 --- a/libcxx/include/algorithm +++ b/libcxx/include/algorithm @@ -1610,6 +1610,18 @@ __unwrap_iter(__wrap_iter<_Tp*> __i) return __i.base(); } +template <class _Tp> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_IF_NODEBUG +typename enable_if +< + is_trivially_copy_assignable<_Tp>::value, + const _Tp* +>::type +__unwrap_iter(__wrap_iter<const _Tp*> __i) +{ + return __i.base(); +} + #else template <class _Tp> |
