I'm sure there has been similar discussion before but it seems to be on other API, I propose a const_data() API to msg_t in order to permit const correctness in higher APIs. A primary example being CZMQ's zmsgdup API ( zmsg_copy).
Is there a better way of doing this in C++? -- Steve-o
From 06a09398d2ff8ac328e98b14a4855c9163101917 Mon Sep 17 00:00:00 2001 From: Steven McCoy <[email protected]> Date: Thu, 26 May 2011 20:20:21 -0400 Subject: [PATCH] Add const_data API for const correctness. Signed-off-by: Steven McCoy <[email protected]> --- src/msg.cpp | 5 +++++ src/msg.hpp | 1 + 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/src/msg.cpp b/src/msg.cpp index 84ca3e2..e9d4c91 100644 --- a/src/msg.cpp +++ b/src/msg.cpp @@ -195,6 +195,11 @@ void *zmq::msg_t::data () } } +const void *zmq::msg_t::const_data () +{ + return data (); +} + size_t zmq::msg_t::size () { // Check the validity of the message. diff --git a/src/msg.hpp b/src/msg.hpp index 466a96a..9ff4e85 100644 --- a/src/msg.hpp +++ b/src/msg.hpp @@ -61,6 +61,7 @@ namespace zmq int move (msg_t &src_); int copy (msg_t &src_); void *data (); + const void *const_data (); size_t size (); unsigned char flags (); void set_flags (unsigned char flags_); -- 1.7.4.1
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