Get int from byte array by offset - c++

Question

I am new to C++. Can't get int from byte array by offset.
When i read directly from memory all works fine and i am gettings 100 - this is correct value
int base = 0x100;
int offset = 0x256;
int easy = memory->ReadMemory<int>(base + offset); // easy = 100
But if i try to get a chunk of bytes and read from them, here problem comes
template<class T>
T FromBuffer(uint8_t* buffer, size_t offset)
{
T t_buf = 0;
memcpy(&t_buf, buffer + offset, sizeof(T));
return t_buf;
}
uint8_t* ReadBytes(DWORD Address, int Size)
{
auto arr = new uint8_t[Size];
ReadProcessMemory(TargetProcess, (LPVOID)Address, arr, sizeof(arr), 0);
return arr;
}
auto bytes = memory->ReadBytes(base, 2500);
int hard = *((unsigned int *)&bytes[offset]); // hard = -842150451
uint32_t hard2 = memory->FromBuffer<uint32_t>(bytes, offset); // hard2 = 3452816845
With C# it would easy like this
int hard = BitConverter.ToInt32(bytes, offset);

Answer 1

Converting this type of C# code to C++ doesn't make any sense, you were forced to do some whacky stuff in C# because doing this type of operation is not what C# was intended for.
You do not need to create a dynamic buffer and do any of that wizardry. Just do:
template <class T>
T RPM(void* addr)
{
T t;
ReadProcessMemory(handle, addr, &t, sizeof(t), nullptr);
return t;
}
int RPM(addr + offset);