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/* Copyright 2017 R. Thomas
* Copyright 2017 Quarkslab
*
* 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 LIEF_UTILS_HEADER
#define LIEF_UTILS_HEADER
#include "LIEF/types.hpp"
#include "LIEF/visibility.h"
#include <string>
namespace LIEF {
uint64_t align(uint64_t value, uint64_t align_on);
template<typename T>
inline constexpr T round(T x) {
return static_cast<T>(round<uint64_t>(x));
}
template<>
inline uint64_t round<uint64_t>(uint64_t x) {
//From http://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
x--;
x |= x >> 1; // handle 2 bit numbers
x |= x >> 2; // handle 4 bit numbers
x |= x >> 4; // handle 8 bit numbers
x |= x >> 8; // handle 16 bit numbers
x |= x >> 16; // handle 32 bit numbers
x |= x >> 32; // handle 64 bit numbers
x++;
return x;
}
constexpr size_t operator ""_KB(unsigned long long kbs)
{
return 1024 * kbs;
}
constexpr size_t operator ""_MB(unsigned long long mbs)
{
return 1024 * 1024 * mbs;
}
constexpr size_t operator ""_GB(unsigned long long gbs)
{
return 1024 * 1024 * 1024 * gbs;
}
//! @brief Convert a UTF-16 string to a UTF-8 one
LIEF_API std::string u16tou8(const std::u16string& string, bool remove_null_char = false);
//! @brief Convert a UTF-8 string to a UTF-16 one
LIEF_API std::u16string u8tou16(const std::string& string);
LIEF_API std::string hex_str(uint8_t c);
}
#endif
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