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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
#include "./internal/export.hpp"
#include "./internal/comparable.hpp"
#include "./types_fwd.hpp"
#include <proton/type_compat.h>
#include <algorithm>
#include <iterator>
/// @file
/// @copybrief proton::byte_array
namespace proton {
namespace internal {
PN_CPP_EXTERN void print_hex(std::ostream& o, const uint8_t* p, size_t n);
/// Arbitrary fixed-size data.
/// Used to represent fixed-sized data types that don't have a natural
/// C++ representation as an array of bytes.
template <size_t N> class byte_array : private internal::comparable<byte_array<N> > {
/// @name Sequence container typedefs
/// @{
typedef uint8_t value_type;
typedef value_type* pointer;
typedef const value_type* const_pointer;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef value_type* iterator;
typedef const value_type* const_iterator;
typedef std::size_t size_type;
typedef std::ptrdiff_t difference_type;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
/// @}
/// Zero-initialized byte array
byte_array() { std::fill(bytes_, bytes_+N, '\0'); }
/// Size of the array
static size_t size() { return N; }
/// @name Array operators
/// @{
value_type* begin() { return bytes_; }
value_type* end() { return bytes_+N; }
value_type& operator[](size_t i) { return bytes_[i]; }
const value_type* begin() const { return bytes_; }
const value_type* end() const { return bytes_+N; }
const value_type& operator[](size_t i) const { return bytes_[i]; }
/// @}
/// @name Comparison operators
/// @{
friend bool operator==(const byte_array& x, const byte_array& y) {
return std::equal(x.begin(), x.end(), y.begin());
friend bool operator<(const byte_array& x, const byte_array& y) {
return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end());
/// @}
/// Print byte array in hex
friend std::ostream& operator<<(std::ostream& o, const byte_array& b) {
internal::print_hex(o, b.begin(), b.size());
return o;
value_type bytes_[N];
} // proton