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cuberite-2a/src/Endianness.h

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#pragma once
#undef ntohll
#define ntohll(x) (((static_cast<UInt64>(ntohl(static_cast<UInt32>(x)))) << 32) + ntohl(x >> 32))
// Changes endianness
inline UInt64 HostToNetwork8(const void * a_Value)
{
UInt64 buf;
memcpy( &buf, a_Value, sizeof( buf));
buf = (( ( static_cast<UInt64>(htonl(static_cast<UInt32>(buf)))) << 32) + htonl(buf >> 32));
return buf;
}
inline UInt32 HostToNetwork4(const void * a_Value)
{
UInt32 buf;
memcpy( &buf, a_Value, sizeof( buf));
buf = ntohl( buf);
return buf;
}
inline double NetworkToHostDouble8(const void * a_Value)
{
UInt64 buf = 0;
memcpy(&buf, a_Value, 8);
buf = ntohll(buf);
double x;
memcpy(&x, &buf, sizeof(double));
return x;
}
inline Int64 NetworkToHostLong8(const void * a_Value)
{
UInt64 buf;
memcpy(&buf, a_Value, 8);
buf = ntohll(buf);
return *reinterpret_cast<Int64 *>(&buf);
}
inline UInt64 NetworkToHostULong8(const void * a_Value)
{
UInt64 buf;
memcpy(&buf, a_Value, 8);
buf = ntohll(buf);
return buf;
}
inline float NetworkToHostFloat4(const void * a_Value)
{
UInt32 buf;
float x;
memcpy(&buf, a_Value, 4);
buf = ntohl(buf);
memcpy(&x, &buf, sizeof(float));
return x;
}