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Avoid -Wconversion with is_signed and enums

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This commit is contained in:
Peter Dimov
2022-05-30 02:19:54 +03:00
parent 14f8934bff
commit 943ef0ab82
1 changed files with 4 additions and 2 deletions
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6
include/boost/container_hash/hash.hpp
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@@ -25,8 +25,10 @@
#include <boost/type_traits/is_integral.hpp> #include <boost/type_traits/is_integral.hpp>
#include <boost/type_traits/is_floating_point.hpp> #include <boost/type_traits/is_floating_point.hpp>
#include <boost/type_traits/is_signed.hpp> #include <boost/type_traits/is_signed.hpp>
#include <boost/type_traits/is_unsigned.hpp>
#include <boost/type_traits/make_unsigned.hpp> #include <boost/type_traits/make_unsigned.hpp>
#include <boost/type_traits/enable_if.hpp> #include <boost/type_traits/enable_if.hpp>
#include <boost/type_traits/conjunction.hpp>
#include <boost/cstdint.hpp> #include <boost/cstdint.hpp>
#include <string> #include <string>
#include <iterator> #include <iterator>
@@ -131,14 +133,14 @@ namespace boost
} // namespace hash_detail } // namespace hash_detail
template <typename T> template <typename T>
typename boost::enable_if_<boost::is_integral<T>::value && !boost::is_signed<T>::value, std::size_t>::type typename boost::enable_if_<boost::conjunction<boost::is_integral<T>, boost::is_unsigned<T> >::value, std::size_t>::type
hash_value( T v ) hash_value( T v )
{ {
return hash_detail::hash_integral_impl<T>::fn( v ); return hash_detail::hash_integral_impl<T>::fn( v );
} }
template <typename T> template <typename T>
typename boost::enable_if_<boost::is_integral<T>::value && boost::is_signed<T>::value, std::size_t>::type typename boost::enable_if_<boost::conjunction<boost::is_integral<T>, boost::is_signed<T> >::value, std::size_t>::type
hash_value( T v ) hash_value( T v )
{ {
typedef typename boost::make_unsigned<T>::type U; typedef typename boost::make_unsigned<T>::type U;