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minor tweaks

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[SVN r36016]
This commit is contained in:
Joel de Guzman
2006-11-13 01:16:28 +00:00
parent 6860872d7b
commit c0c9bbc700
2 changed files with 23 additions and 2 deletions
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10
include/boost/fusion/sequence/adapted/variant/variant_iterator.hpp
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@ -77,14 +77,20 @@ namespace boost { namespace fusion {
typename add_const<typename mpl::deref<typename Iterator::iterator>::type>,
typename mpl::deref<typename Iterator::iterator>
>::type
value_type;
typedef typename
add_reference<value_type>::type
type;
static type
call(Iterator const & it)
{
typedef typename mpl::deref<typename Iterator::iterator>::type type;
type* result = get<type>(&it.var_);
return result ? *result : type();
if (type* result = get<type>(&it.var_))
return *result;
it.var_ = type(); // prime the variant
return *boost::get<type>(&it.var_); // no-throw!
}
};
};