int read_nfloat64 (double *d, int fd);
int write_nfloat64 (double const *d, int fd);
void ConvertNetworkOrder (void* buffer, size_t bytes);
int read_nfloat64 (double *d, int fd);
int write_nfloat64 (double const *d, int fd);
void ConvertNetworkOrder (void* buffer, size_t bytes);