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Use #include <boost/intrusive/detail/hash_combine.hpp> instead of #include <boost/container_hash/hash.hpp> to avoid pulling unneeded STL headers.

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Ion Gaztañaga
2021-01-05 00:07:02 +01:00
parent 95538bfdc2
commit 482f0911e1
1 changed files with 11 additions and 2 deletions
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13
include/boost/container/string.hpp
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@@ -48,7 +48,7 @@
#include <boost/static_assert.hpp> #include <boost/static_assert.hpp>
#include <boost/core/no_exceptions_support.hpp> #include <boost/core/no_exceptions_support.hpp>
#include <boost/container_hash/hash.hpp> #include <boost/intrusive/detail/hash_combine.hpp>
#include <boost/container/detail/minimal_char_traits_header.hpp> // for char_traits #include <boost/container/detail/minimal_char_traits_header.hpp> // for char_traits
#include <iosfwd> #include <iosfwd>
@@ -3546,7 +3546,16 @@ getline(std::basic_istream<CharT, Traits>& is, basic_string<CharT,Traits,Allocat
template <class Ch, class Allocator> template <class Ch, class Allocator>
inline std::size_t hash_value(basic_string<Ch, std::char_traits<Ch>, Allocator> const& v) inline std::size_t hash_value(basic_string<Ch, std::char_traits<Ch>, Allocator> const& v)
{ {
return hash_range(v.begin(), v.end()); std::size_t seed = 0;
const Ch *first = v.data();
for(std::size_t i = 0, i_max = v.size(); i != i_max; ++i)
{
boost::intrusive::detail::hash_combine_size_t(seed, static_cast<std::size_t>(*first));
++first;
}
return seed;
} }
}} }}