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fix narrowing warnings due to integer promotion.

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Signed-off-by: Daniela Engert <dani@ngrt.de>
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Daniela Engert
2017-04-26 14:49:04 +02:00
parent 6662dbdbbd
commit 6ebccd6c80
1 changed files with 9 additions and 1 deletions
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10
include/boost/integer/integer_mask.hpp
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@ -57,19 +57,27 @@ struct high_bit_mask_t
// Makes masks for the lowest N bits // Makes masks for the lowest N bits
// (Specializations are needed when N fills up a type.) // (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 > template < std::size_t Bits >
struct low_bits_mask_t struct low_bits_mask_t
{ {
typedef typename uint_t<Bits>::least least; typedef typename uint_t<Bits>::least least;
typedef typename uint_t<Bits>::fast fast; typedef typename uint_t<Bits>::fast fast;
BOOST_STATIC_CONSTANT( least, sig_bits = (~(least(~(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( fast, sig_bits_fast = fast(sig_bits) );
BOOST_STATIC_CONSTANT( std::size_t, bit_count = Bits ); BOOST_STATIC_CONSTANT( std::size_t, bit_count = Bits );
}; // boost::low_bits_mask_t }; // boost::low_bits_mask_t
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif
#define BOOST_LOW_BITS_MASK_SPECIALIZE( Type ) \ #define BOOST_LOW_BITS_MASK_SPECIALIZE( Type ) \
template < > struct low_bits_mask_t< std::numeric_limits<Type>::digits > { \ template < > struct low_bits_mask_t< std::numeric_limits<Type>::digits > { \