fixed_string.hpp

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#ifndef KOKKOS_EXECUTION_IMPL_FIXED_STRING_HPP
#define KOKKOS_EXECUTION_IMPL_FIXED_STRING_HPP
 
#include <algorithm>
#include <cstddef>
#include <string_view>
 
#include "stdexec/__detail/__config.hpp"
 
namespace Kokkos::Execution::Impl {

template <std::size_t N>
struct FixedString {
    char data[N]{};
 
    constexpr FixedString(const char (&str)[N]) noexcept { // NOLINT(google-explicit-constructor)
        std::ranges::copy(str, data);
    }
 
    constexpr auto size() const noexcept {
        return N - 1;
    }
 
    constexpr auto begin() const noexcept {
        return data;
    }
 
    constexpr auto end() const noexcept {
        return data + N - 1;
    }
 
    constexpr operator std::string_view() const noexcept(noexcept(view())) { // NOLINT(google-explicit-constructor)
        return view();
    }
 
    [[nodiscard]]
    constexpr auto view() const STDEXEC_AUTO_RETURN(std::string_view{data, size()})
};
 
template <typename T>
constexpr bool is_fixed_string_v = false;
 
template <std::size_t N>
constexpr bool is_fixed_string_v<FixedString<N>> = true;
 
} // namespace Kokkos::Execution::Impl
 
#endif // KOKKOS_EXECUTION_IMPL_FIXED_STRING_HPP