platform/network.h

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#pragma once
 
#include <stdint.h>
 
#ifdef _WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#endif
 
#ifndef htonll
#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define htonll(x) (x)
#define ntohll(x) (x)
#elif defined(__GNUC__) || defined(__clang__)
#define htonll(x) __builtin_bswap64(x)
#define ntohll(x) __builtin_bswap64(x)
#else
static inline uint64_t htonll(uint64_t val) {
  return ((val & 0x00000000000000FFULL) << 56) |
         ((val & 0x000000000000FF00ULL) << 40) |
         ((val & 0x0000000000FF0000ULL) << 24) |
         ((val & 0x00000000FF000000ULL) << 8) |
         ((val & 0x000000FF00000000ULL) >> 8) |
         ((val & 0x0000FF0000000000ULL) >> 24) |
         ((val & 0x00FF000000000000ULL) >> 40) |
         ((val & 0xFF00000000000000ULL) >> 56);
}
#define ntohll(x) htonll(x)
#endif
#endif