diff options
Diffstat (limited to 'libstdc++-v3/include/bits/regex_compiler.h')
| -rw-r--r-- | libstdc++-v3/include/bits/regex_compiler.h | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/libstdc++-v3/include/bits/regex_compiler.h b/libstdc++-v3/include/bits/regex_compiler.h index 406d9a9fd6b1..741098f8c646 100644 --- a/libstdc++-v3/include/bits/regex_compiler.h +++ b/libstdc++-v3/include/bits/regex_compiler.h @@ -129,8 +129,40 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _StackT _M_stack; }; + template<typename _Tp> + struct __has_contiguous_iter : std::false_type { }; + + template<typename _Ch, typename _Tr, typename _Alloc> + struct __has_contiguous_iter<std::basic_string<_Ch, _Tr, _Alloc>> + : std::true_type + { }; + + template<typename _Tp, typename _Alloc> + struct __has_contiguous_iter<std::vector<_Tp, _Alloc>> + : std::true_type + { }; + + template<typename _Tp> + struct __is_contiguous_normal_iter : std::false_type { }; + + template<typename _Tp, typename _Cont> + struct + __is_contiguous_normal_iter<__gnu_cxx::__normal_iterator<_Tp, _Cont>> + : __has_contiguous_iter<_Cont>::type + { }; + + template<typename _Iter, typename _TraitsT> + using __enable_if_contiguous_normal_iter + = typename enable_if< __is_contiguous_normal_iter<_Iter>::value, + std::shared_ptr<_NFA<_TraitsT>> >::type; + + template<typename _Iter, typename _TraitsT> + using __disable_if_contiguous_normal_iter + = typename enable_if< !__is_contiguous_normal_iter<_Iter>::value, + std::shared_ptr<_NFA<_TraitsT>> >::type; + template<typename _FwdIter, typename _TraitsT> - inline std::shared_ptr<_NFA<_TraitsT>> + inline __disable_if_contiguous_normal_iter<_FwdIter, _TraitsT> __compile_nfa(_FwdIter __first, _FwdIter __last, const _TraitsT& __traits, regex_constants::syntax_option_type __flags) { @@ -138,6 +170,16 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION return _Cmplr(__first, __last, __traits, __flags)._M_get_nfa(); } + template<typename _Iter, typename _TraitsT> + inline __enable_if_contiguous_normal_iter<_Iter, _TraitsT> + __compile_nfa(_Iter __first, _Iter __last, const _TraitsT& __traits, + regex_constants::syntax_option_type __flags) + { + size_t __len = __last - __first; + const auto* __cfirst = __len ? std::__addressof(*__first) : nullptr; + return __compile_nfa(__cfirst, __cfirst + __len, __traits, __flags); + } + template<typename _TraitsT> struct _AnyMatcher { |