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63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
#include <tuple>
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#include <utility>
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#include <type_traits>
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#include <callable_traits/insert_args.hpp>
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#ifndef CT_ASSERT
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#define CT_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
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#endif //CT_ASSERT
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namespace ct = callable_traits;
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template<int I>
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struct N {};
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template<typename... Ts>
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using sig = int(*)(Ts...);
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int main() {
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{
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using f = sig<N<0>, N<1>, N<2>, N<3>, N<4>>;
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using test = ct::insert_args_t<0, f, int, char>;
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using expect = sig<int, char, N<0>, N<1>, N<2>, N<3>, N<4>>;
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CT_ASSERT(std::is_same<test, expect>::value);
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}
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{
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using f = sig<N<0>, N<1>, N<2>, N<3>, N<4>>;
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using test = ct::insert_args_t<1, f, int, char>;
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using expect = sig<N<0>, int, char, N<1>, N<2>, N<3>, N<4>>;
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CT_ASSERT(std::is_same<test, expect>::value);
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}
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{
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using f = sig<N<0>, N<1>, N<2>, N<3>, N<4>>;
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using test = ct::insert_args_t<2, f, int, char>;
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using expect = sig<N<0>, N<1>, int, char, N<2>, N<3>, N<4>>;
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CT_ASSERT(std::is_same<test, expect>::value);
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}
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{
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using f = sig<N<0>, N<1>, N<2>, N<3>, N<4>>;
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using test = ct::insert_args_t<3, f, int, char>;
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using expect = sig<N<0>, N<1>, N<2>, int, char, N<3>, N<4>>;
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CT_ASSERT(std::is_same<test, expect>::value);
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}
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{
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using f = sig<N<0>, N<1>, N<2>, N<3>, N<4>>;
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using test = ct::insert_args_t<4, f, int, char>;
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using expect = sig<N<0>, N<1>, N<2>, N<3>, int, char, N<4>>;
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CT_ASSERT(std::is_same<test, expect>::value);
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}
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{
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using f = sig<N<0>, N<1>, N<2>, N<3>, N<4>>;
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using test = ct::insert_args_t<5, f, int, char>;
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using expect = sig<N<0>, N<1>, N<2>, N<3>, N<4>, int, char>;
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CT_ASSERT(std::is_same<test, expect>::value);
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}
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}
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