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#ifndef CHILON_ARGUMENT_HPP |
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#define CHILON_ARGUMENT_HPP |
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|
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#include <chilon/meta/return.hpp> |
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#include <chilon/meta/at.hpp> |
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|
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namespace chilon { |
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|
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namespace detail { |
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template <int I, class R> |
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struct argument { |
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template <class H, class... T> |
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static R exec(H&& h, T&&... t) { |
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return argument<I - 1, R>::exec(t...); |
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} |
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}; |
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|
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template <class R> |
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struct argument<0, R> { |
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template <class H, class... T> |
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static R exec(H&& h, T&&... t) { |
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return h; |
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} |
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}; |
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} |
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|
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template <int I, class... T> |
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auto argument(T&&... t) CHILON_RETURN( |
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detail::argument< |
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I, typename meta::at<I, T...>::type &>::exec(std::forward<T>(t)...)) |
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|
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template <int I, class U, class... T> |
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auto argument_default(U&& u, T&&... t) CHILON_RETURN( |
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detail::argument< |
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I, typename meta::at<I, T...>::type &>::exec(std::forward<T>(t)...)) |
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|
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template <int I, class U, class... T> |
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auto argument_default(U&& u, T&&... t) CHILON_RETURN(std::forward<U>(u)) |
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|
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} |
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#endif |