diff options
Diffstat (limited to 'libstdc++-v3/include')
| -rw-r--r-- | libstdc++-v3/include/ext/vstring.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libstdc++-v3/include/ext/vstring.h b/libstdc++-v3/include/ext/vstring.h index 46959787c2d..6e43e2b0818 100644 --- a/libstdc++-v3/include/ext/vstring.h +++ b/libstdc++-v3/include/ext/vstring.h @@ -2731,6 +2731,66 @@ _GLIBCXX_END_NAMESPACE_VERSION #endif +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + +#include <bits/functional_hash.h> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /// std::hash specialization for __vstring. + template<> + struct hash<__gnu_cxx::__vstring> + : public __hash_base<size_t, __gnu_cxx::__vstring> + { + size_t + operator()(const __gnu_cxx::__vstring& __s) const + { return std::_Hash_impl::hash(__s.data(), __s.length()); } + }; + +#ifdef _GLIBCXX_USE_WCHAR_T + /// std::hash specialization for __wvstring. + template<> + struct hash<__gnu_cxx::__wvstring> + : public __hash_base<size_t, __gnu_cxx::__wvstring> + { + size_t + operator()(const __gnu_cxx::__wvstring& __s) const + { return std::_Hash_impl::hash(__s.data(), + __s.length() * sizeof(wchar_t)); } + }; +#endif + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + /// std::hash specialization for __u16vstring. + template<> + struct hash<__gnu_cxx::__u16vstring> + : public __hash_base<size_t, __gnu_cxx::__u16vstring> + { + size_t + operator()(const __gnu_cxx::__u16vstring& __s) const + { return std::_Hash_impl::hash(__s.data(), + __s.length() * sizeof(char16_t)); } + }; + + /// std::hash specialization for __u32vstring. + template<> + struct hash<__gnu_cxx::__u32vstring> + : public __hash_base<size_t, __gnu_cxx::__u32vstring> + { + size_t + operator()(const __gnu_cxx::__u32vstring& __s) const + { return std::_Hash_impl::hash(__s.data(), + __s.length() * sizeof(char32_t)); } + }; +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* __GXX_EXPERIMENTAL_CXX0X__ */ + #include "vstring.tcc" #endif /* _VSTRING_H */ |