/************************************************************************* * * Copyright 2016 Realm Inc. * * Licensed 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 * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * **************************************************************************/ #ifndef REALM_UTIL_HEX_DUMP_HPP #define REALM_UTIL_HEX_DUMP_HPP #include <cstddef> #include <type_traits> #include <limits> #include <string> #include <sstream> #include <iomanip> #include <realm/util/safe_int_ops.hpp> namespace realm { namespace util { template <class T> std::string hex_dump(const T* data, size_t size, const char* separator = " ", int min_digits = -1) { using U = std::make_unsigned_t<T>; if (min_digits < 0) min_digits = (std::numeric_limits<U>::digits + 3) / 4; std::ostringstream out; for (const T* i = data; i != data + size; ++i) { if (i != data) out << separator; out << std::setw(min_digits) << std::setfill('0') << std::hex << std::uppercase << int64_t(U(*i)); } return out.str(); } } // namespace util } // namespace realm #endif // REALM_UTIL_HEX_DUMP_HPP