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#pragma once
// rawmem.hpp - Ignore poisoning and really frob this memory unsafely.
//
// Copyright © 2013-2014 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <type_traits>
#include "fwd.hpp"
namespace tmwa
{
inline
void really_memcpy(uint8_t *dest, const uint8_t *src, size_t n)
{
memcpy(dest, src, n);
}
inline
void really_memmove(uint8_t *dest, const uint8_t *src, size_t n)
{
memmove(dest, src, n);
}
inline
bool really_memequal(const uint8_t *a, const uint8_t *b, size_t n)
{
return memcmp(a, b, n) == 0;
}
inline
void really_memset0(uint8_t *dest, size_t n)
{
memset(dest, '\0', n);
}
template<class T>
struct is_trivially_copyable
: std::integral_constant<bool,
// come back when GCC actually implements the public traits properly
__has_trivial_copy(T)
&& __has_trivial_assign(T)
&& __has_trivial_destructor(T)>
{};
template<class T>
void really_memzero_this(T *v)
{
static_assert(is_trivially_copyable<T>::value, "only for mostly-pod types");
static_assert(std::is_class<T>::value || std::is_union<T>::value, "Only for user-defined structures (for now)");
memset(v, '\0', sizeof(*v));
}
template<class T, size_t n>
void really_memzero_this(T (&)[n]) = delete;
} // namespace tmwa
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