Utilities for C++ metaprogramming. More...

#include <tuple>
#include <utility>
#include <type_traits>
#include "smith/infrastructure/accelerator.hpp"

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Functions
template<int I, int... n>
constexpr auto	get (std::integer_sequence< int, n... >)
	return the Ith integer in `{n...}`

template<int... n, typename lambda >
constexpr SMITH_HOST_DEVICE void	for_constexpr (const lambda &f)
	multidimensional loop tool that evaluates the lambda body inside the innermost loop. More...

Detailed Description

Utilities for C++ metaprogramming.

Definition in file metaprogramming.hpp.

Function Documentation

template<int... n, typename lambda >

constexpr SMITH_HOST_DEVICE void for_constexpr ( const lambda & f )

constexpr

multidimensional loop tool that evaluates the lambda body inside the innermost loop.

Template Parameters

n	integer template arguments describing the shape of the iteration space
lambda	the type of the functor object to be executed in the loop

Note: for_constexpr< 2, 3 >([](auto i, auto j) { std::cout << i << " " << j << std::endl; }

will print:
0 0

0 1

0 2

1 0

1 1

1 2; latter integer template parameters correspond to more nested loops; The lambda function should be a callable object taking sizeof ... (n) arguments. Anything returned from f() will be discarded note: this forces multidimensional loop unrolling, which can be beneficial for runtime performance, but can hurt compile time and executable size as the loop dimensions become larger.

Definition at line 96 of file metaprogramming.hpp.