SYNOPSIS
Version 0
#include <nng/protocol/pair0/pair.h>
int nng_pair0_open(nng_socket *s);
int nng_pair0_open_raw(nng_socket *s);Version 1
#include <nng/protocol/pair1/pair.h>
int nng_pair1_open(nng_socket *s);
int nng_pair1_open_raw(nng_socket *s);DESCRIPTION
RETURN VALUES
These functions returns 0 on success, and non-zero otherwise.
ERRORS
| NNG_ENOMEM | Insufficient memory is available. | 
| NNG_ENOTSUP | The protocol is not supported. |