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Disable wchar_t usage when it's not available.

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See https://svn.boost.org/trac/boost/ticket/11870.
This commit is contained in:
jzmaddock
2015-12-28 18:53:44 +00:00
parent 08cb0bba32
commit bc58964228
1 changed files with 6 additions and 0 deletions
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6
include/boost/type_traits/detail/common_arithmetic_type.hpp
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@@ -35,12 +35,16 @@ template<> struct arithmetic_type<2>
typedef char (&result_type) [2];
};
#ifndef BOOST_NO_INTRINSIC_WCHAR_T
template<> struct arithmetic_type<3>
{
typedef wchar_t type;
typedef char (&result_type) [3];
};
#endif
// There are five standard signed integer types:
// “signed char”, “short int”, “int”, “long int”, and “long long int”.
@@ -170,7 +174,9 @@ private:
static arithmetic_type<1>::result_type select( arithmetic_type<1>::type );
static arithmetic_type<2>::result_type select( arithmetic_type<2>::type );
#ifndef BOOST_NO_INTRINSIC_WCHAR_T
static arithmetic_type<3>::result_type select( arithmetic_type<3>::type );
#endif
static arithmetic_type<4>::result_type select( arithmetic_type<4>::type );
static arithmetic_type<5>::result_type select( arithmetic_type<5>::type );
static arithmetic_type<6>::result_type select( arithmetic_type<6>::type );