buffer_utils.cpp

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#include <storage_common/buffer_utils.hpp>
 
namespace storage {
 
std::string bytes_to_hex_str(char const *bytes, size_t byte_count)
{
    std::string str{};
    str.reserve(byte_count * 2);
    bytes_to_hex_str(bytes, byte_count, str);
    return str;
}
 
void bytes_to_hex_str(char const *bytes, size_t byte_count, std::string &str)
{
    static char constexpr char_table
        [16]{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
    for (auto *byte = bytes; byte != bytes + byte_count; ++byte) {
        uint8_t nibbles[2];
        nibbles[0] = static_cast<uint8_t>(*byte) >> 4;
        nibbles[1] = static_cast<uint8_t>(*byte) & 0xf;
        str.push_back(char_table[nibbles[0]]);
        str.push_back(char_table[nibbles[1]]);
    }
}
 
size_t aligned_size(size_t alignment, size_t size)
{
    if (alignment == 0)
        return size;
 
    auto remainder = size % alignment;
    return alignment * ((size / alignment) + (remainder == 0 ? 0 : 1));
}
 
} /* namespace storage */