mirror of https://github.com/oxen-io/oxen-mq.git
29 lines
910 B
C++
29 lines
910 B
C++
#pragma once
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// Specializations for assigning from a char into an output iterator, used by hex/base32z/base64
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// decoding to bytes.
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#include <iterator>
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#include <type_traits>
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namespace oxenmq::detail {
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// Fallback - we just try a char
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template <typename OutputIt, typename = void>
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struct byte_type { using type = char; };
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// Support for things like std::back_inserter:
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template <typename OutputIt>
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struct byte_type<OutputIt, std::void_t<typename OutputIt::container_type>> {
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using type = typename OutputIt::container_type::value_type; };
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// iterator, raw pointers:
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template <typename OutputIt>
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struct byte_type<OutputIt, std::enable_if_t<std::is_reference_v<typename std::iterator_traits<OutputIt>::reference>>> {
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using type = std::remove_reference_t<typename std::iterator_traits<OutputIt>::reference>; };
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template <typename OutputIt>
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using byte_type_t = typename byte_type<OutputIt>::type;
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}
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