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Add value list support to mp_transform (for up to three lists). Closes #86.

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Peter Dimov
2023-12-18 05:53:20 +02:00
parent f8fb53c775
commit 4db3374eed
3 changed files with 65 additions and 0 deletions
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include/boost/mp11/algorithm.hpp
+19
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@@ -84,6 +84,25 @@ template<template<class...> class F, template<class...> class L1, class... T1, t
#endif
};
#if defined(BOOST_MP11_HAS_TEMPLATE_AUTO)
template<template<class...> class F, template<auto...> class L, auto... A> struct mp_transform_impl<F, L<A...>>
{
using type = L< F< mp_value<A> >::value... >;
};
template<template<class...> class F, template<auto...> class L1, auto... A1, template<auto...> class L2, auto... A2> struct mp_transform_impl<F, L1<A1...>, L2<A2...>>
{
using type = L1< F< mp_value<A1>, mp_value<A2> >::value... >;
};
template<template<class...> class F, template<auto...> class L1, auto... A1, template<auto...> class L2, auto... A2, template<auto...> class L3, auto... A3> struct mp_transform_impl<F, L1<A1...>, L2<A2...>, L3<A3...>>
{
using type = L1< F< mp_value<A1>, mp_value<A2>, mp_value<A3> >::value... >;
};
#endif
#if BOOST_MP11_WORKAROUND( BOOST_MP11_MSVC, == 1900 ) || BOOST_MP11_WORKAROUND( BOOST_MP11_GCC, < 40800 )
template<class... L> using mp_same_size_1 = mp_same<mp_size<L>...>;