uhd: Replace all occurrences of boost::bind with std::bind

Note: Replacing everything with a lambda would be even better, but that
can't be easily scripted so we'll do this as a first step to reduce the
Boost footprint.

This also removes occurences of #include <boost/bind.hpp>, and makes
sure all usages of std::bind have an #include <functional>. clang-format
wasn't always applied to minimize the changeset in this commit, however,
it was applied to the blocks of #includes.

Due to conflicts with other Boost libraries, the placeholders _1, _2,
etc. could not be directly used, but had to be explicitly called out
(as std::placeholders::_1, etc.). This makes the use of std::bind even
uglier, which serves as another reminder that using std::bind (and even
more so, boost::bind) should be avoided.

nirio/rpc/rpc_client.cpp still contains a reference to boost::bind. It
was not possible to remove it by simply doing a search and replace, so
it will be removed in a separate commit.

1 files changed, 3 insertions, 2 deletions

diff --git a/host/examples/rfnoc_rx_to_file.cpp b/host/examples/rfnoc_rx_to_file.cpp
index 2211831aa..2d648c10d 100644
--- a/host/examples/rfnoc_rx_to_file.cpp
+++ b/host/examples/rfnoc_rx_to_file.cpp
@@ -21,6 +21,7 @@
 #include <complex>
 #include <csignal>
 #include <fstream>
+#include <functional>
 #include <iostream>
 #include <thread>
 
@@ -419,10 +420,10 @@ int UHD_SAFE_MAIN(int argc, char* argv[])
     if (not vm.count("skip-lo")) {
         // TODO
         // check_locked_sensor(usrp->get_rx_sensor_names(0), "lo_locked",
-        // boost::bind(&uhd::usrp::multi_usrp::get_rx_sensor, usrp, _1, radio_id),
+        // std::bind(&uhd::usrp::multi_usrp::get_rx_sensor, usrp, _1, radio_id),
         // setup_time); if (ref == "external")
         // check_locked_sensor(usrp->get_mboard_sensor_names(0), "ref_locked",
-        // boost::bind(&uhd::usrp::multi_usrp::get_mboard_sensor, usrp, _1, radio_id),
+        // std::bind(&uhd::usrp::multi_usrp::get_mboard_sensor, usrp, _1, radio_id),
         // setup_time);
     }