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, 7 insertions, 7 deletions

diff --git a/host/tests/gain_group_test.cpp b/host/tests/gain_group_test.cpp
index 2608f292d..9680fa2a0 100644
--- a/host/tests/gain_group_test.cpp
+++ b/host/tests/gain_group_test.cpp
@@ -6,9 +6,9 @@
 //
 
 #include <uhd/utils/gain_group.hpp>
-#include <boost/bind.hpp>
 #include <boost/math/special_functions/round.hpp>
 #include <boost/test/unit_test.hpp>
+#include <functional>
 #include <iostream>
 
 #define rint(x) boost::math::iround(x)
@@ -75,14 +75,14 @@ static gain_group::sptr get_gain_group(size_t pri1 = 0, size_t pri2 = 0)
     gain_group::sptr gg(gain_group::make());
 
     // load gain group with function sets
-    gain_fcns.get_range = boost::bind(&gain_element1::get_range, &g1);
-    gain_fcns.get_value = boost::bind(&gain_element1::get_value, &g1);
-    gain_fcns.set_value = boost::bind(&gain_element1::set_value, &g1, _1);
+    gain_fcns.get_range = std::bind(&gain_element1::get_range, &g1);
+    gain_fcns.get_value = std::bind(&gain_element1::get_value, &g1);
+    gain_fcns.set_value = std::bind(&gain_element1::set_value, &g1, std::placeholders::_1);
     gg->register_fcns("g1", gain_fcns, pri1);
 
-    gain_fcns.get_range = boost::bind(&gain_element2::get_range, &g2);
-    gain_fcns.get_value = boost::bind(&gain_element2::get_value, &g2);
-    gain_fcns.set_value = boost::bind(&gain_element2::set_value, &g2, _1);
+    gain_fcns.get_range = std::bind(&gain_element2::get_range, &g2);
+    gain_fcns.get_value = std::bind(&gain_element2::get_value, &g2);
+    gain_fcns.set_value = std::bind(&gain_element2::set_value, &g2, std::placeholders::_1);
     gg->register_fcns("g2", gain_fcns, pri2);
 
     return gg;