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, 2 insertions, 2 deletions

diff --git a/host/lib/transport/libusb1_base.cpp b/host/lib/transport/libusb1_base.cpp
index 03ab51770..3362de712 100644
--- a/host/lib/transport/libusb1_base.cpp
+++ b/host/lib/transport/libusb1_base.cpp
@@ -11,9 +11,9 @@
 #include <uhd/types/serial.hpp>
 #include <uhd/utils/log.hpp>
 #include <uhd/utils/tasks.hpp>
-#include <boost/bind.hpp>
 #include <boost/thread/mutex.hpp>
 #include <cstdlib>
+#include <functional>
 #include <iostream>
 #include <mutex>
 #include <memory>
@@ -37,7 +37,7 @@ public:
         UHD_ASSERT_THROW(libusb_init(&_context) == 0);
         libusb_set_debug(_context, debug_level);
         task_handler = task::make(
-            boost::bind(&libusb_session_impl::libusb_event_handler_task, this, _context));
+            std::bind(&libusb_session_impl::libusb_event_handler_task, this, _context));
     }
 
     virtual ~libusb_session_impl(void);