SYNOPSIS
#include <nng/nng.h>
int nng_msg_header_chop(nng_msg *msg, size_t size);
int nng_msg_header_chop_u32(nng_msg *msg, uint32_t *val32);DESCRIPTION
The nng_msg_header_chop() and nng_msg_header_chop_u32() functions remove
data from the end of the header of message msg.
The first function removes size bytes.
The second function removes 4 bytes, and stores them in the value val32,
after converting them from network-byte order (big-endian) to native
byte order.
RETURN VALUES
This function returns 0 on success, and non-zero otherwise.
ERRORS
NNG_EINVAL-
The message header is too short to remove the requested data.