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/*
* Copyright (C) 2018 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef HEX_FORMAT_HXX
#define HEX_FORMAT_HXX
#include "ConstBuffer.hxx"
#include "StringBuffer.hxx"
#include "Compiler.h"
#include <cstddef>
#include <cstdint>
/**
* Format the given byte sequence into a null-terminated hexadecimal
* string.
*
* @param dest the destination buffer; must be large enough to hold
* all hex digits plus the null terminator
* @return a pointer to the generated null terminator
*/
char *
HexFormat(char *dest, ConstBuffer<uint8_t> src) noexcept;
/**
* Like HexFormat(), but return a #StringBuffer with exactly the
* required size.
*/
template<size_t size>
gcc_pure
auto
HexFormatBuffer(const uint8_t *src) noexcept
{
StringBuffer<size * 2 + 1> dest;
HexFormat(dest.data(), {src, size});
return dest;
}
#endif
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