40 lines
872 B
C++
40 lines
872 B
C++
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#ifndef __cxz_for_utils_h__
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#define __cxz_for_utils_h__
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//#include "ranges/rheader.h"
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#include <array>
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#include <tuple>
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namespace CNORXZInternal
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{
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namespace {
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template <class Op>
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using to_size_t = size_t;
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}
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template <size_t N>
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struct XFPackNum
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{
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template <class ETuple, typename... Args>
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static inline ETuple mkPos(size_t pos, const ETuple& et, const ETuple& lt, const Args&... args)
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{
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return std::move( XFPackNum<N-1>::mkPos(pos, et, lt, std::get<N>(lt) + pos * std::get<N>(et), args...) );
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}
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};
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template <>
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struct XFPackNum<0>
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{
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template <class ETuple, typename... Args>
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static inline ETuple mkPos(size_t pos, const ETuple& et, const ETuple& lt, const Args&... args)
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{
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return ETuple(std::get<0>(lt) + pos * std::get<0>(et), args...);
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}
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};
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} // end namespace CNORXZInternal
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#endif
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