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deprecate old BOOST_PROTO_DEFINE_VARARG_FUNCTION_TEMPLATE macro, replace with more flexible and useful BOOST_PROTO_REPEAT and BOOST_PROTO_LOCAL_ITERATE

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[SVN r49930]
This commit is contained in:
Eric Niebler
2008-11-25 16:00:40 +00:00
parent 1a8ff94196
commit fecfd2fffe
8 changed files with 497 additions and 315 deletions
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30
test/lambda.cpp
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@@ -130,28 +130,24 @@ struct lambda
return proto::eval(*this, ctx);
}
template<typename A0>
typename proto::result_of::eval<T const, lambda_context<fusion::tuple<A0 const &> > >::type
operator ()(A0 const &a0) const
{
fusion::tuple<A0 const &> args(a0);
lambda_context<fusion::tuple<A0 const &> > ctx(args);
return proto::eval(*this, ctx);
}
template<typename A0, typename A1>
typename proto::result_of::eval<T const, lambda_context<fusion::tuple<A0 const &, A1 const &> > >::type
operator ()(A0 const &a0, A1 const &a1) const
{
fusion::tuple<A0 const &, A1 const &> args(a0, a1);
lambda_context<fusion::tuple<A0 const &, A1 const &> > ctx(args);
return proto::eval(*this, ctx);
}
#define M0(N, typename_A, A_const_ref, A_const_ref_a, ref_a) \
template<typename_A(N)> \
typename proto::result_of::eval<T const, lambda_context<fusion::tuple<A_const_ref(N)> > >::type \
operator ()(A_const_ref_a(N)) const \
{ \
fusion::tuple<A_const_ref(N)> args(ref_a(N)); \
lambda_context<fusion::tuple<A_const_ref(N)> > ctx(args); \
return proto::eval(*this, ctx); \
} \
/**/
BOOST_PROTO_REPEAT_FROM_TO(1, 4, M0)
#undef M0
};
// Define some lambda placeholders
lambda<proto::terminal<placeholder<mpl::int_<0> > >::type> const _1 = {{}};
lambda<proto::terminal<placeholder<mpl::int_<1> > >::type> const _2 = {{}};
lambda<proto::terminal<placeholder<mpl::int_<3> > >::type> const _3 = {{}};
template<typename T>
lambda<typename proto::terminal<T>::type> const val(T const &t)