fixes #691 Desire 16 and 64 bit message manipulators

We use macros to generate message bodies for each of the various
variants, reducing source code size (but not compiled size).  The
documentation is updated to indicate each of these variants.

1 files changed, 6 insertions, 4 deletions

diff --git a/docs/man/nng_msg_header_trim.3.adoc b/docs/man/nng_msg_header_trim.3.adoc
index 39d8052e..0a9caea3 100644
--- a/docs/man/nng_msg_header_trim.3.adoc
+++ b/docs/man/nng_msg_header_trim.3.adoc
@@ -11,7 +11,7 @@
 
 == NAME
 
-nng_msg_header_trim, nng_msg_header_trim_u32 - remove data from start of message header
+nng_msg_header_trim - remove data from start of message header
 
 == SYNOPSIS
 
@@ -20,16 +20,18 @@ nng_msg_header_trim, nng_msg_header_trim_u32 - remove data from start of message
 #include <nng/nng.h>
 
 int nng_msg_header_trim(nng_msg *msg, size_t size);
-
+int nng_msg_header_trim_u16(nng_msg *msg, uint16_t *val16);
 int nng_msg_header_trim_u32(nng_msg *msg, uint32_t *val32);
+int nng_msg_header_trim_u64(nng_msg *msg, uint64_t *val64);
 ----
 
 == DESCRIPTION
 
-The `nng_msg_header_trim()` and `nng_msg_header_trim_u32()` functions remove
+The `nng_msg_header_trim()` family of functions remove
 data from the start 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_,
+The remaining functions removes 2, 4, or 8 bytes, and stores them in the
+value (such as _val32_),
 after converting them from network-byte order (big-endian) to native
 byte order.