diff options
Diffstat (limited to 'boost/integer/integer_mask.hpp')
| -rw-r--r-- | boost/integer/integer_mask.hpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/boost/integer/integer_mask.hpp b/boost/integer/integer_mask.hpp index 2acf7f7dff..eee4679b84 100644 --- a/boost/integer/integer_mask.hpp +++ b/boost/integer/integer_mask.hpp @@ -57,19 +57,27 @@ struct high_bit_mask_t // Makes masks for the lowest N bits // (Specializations are needed when N fills up a type.) +#ifdef BOOST_MSVC +#pragma warning(push) +#pragma warning(disable:4310) // cast truncates constant value +#endif + template < std::size_t Bits > struct low_bits_mask_t { typedef typename uint_t<Bits>::least least; typedef typename uint_t<Bits>::fast fast; - BOOST_STATIC_CONSTANT( least, sig_bits = (~( ~(least( 0u )) << Bits )) ); + BOOST_STATIC_CONSTANT( least, sig_bits = least(~(least(~(least( 0u ))) << Bits )) ); BOOST_STATIC_CONSTANT( fast, sig_bits_fast = fast(sig_bits) ); BOOST_STATIC_CONSTANT( std::size_t, bit_count = Bits ); }; // boost::low_bits_mask_t +#ifdef BOOST_MSVC +#pragma warning(pop) +#endif #define BOOST_LOW_BITS_MASK_SPECIALIZE( Type ) \ template < > struct low_bits_mask_t< std::numeric_limits<Type>::digits > { \ |