uhd: Replace boost::function with std::function

This is mostly a search-and-replace operation, with few exceptions:
- boost::function has a clear() method. In C++11, this is achieved by
  assigning nullptr to the std::function object.
- The empty() method is replaced by std::function's bool() operator

3 files changed, 10 insertions, 10 deletions

diff --git a/host/lib/transport/libusb1_zero_copy.cpp b/host/lib/transport/libusb1_zero_copy.cpp
index fbeddbcdd..356d247cb 100644
--- a/host/lib/transport/libusb1_zero_copy.cpp
+++ b/host/lib/transport/libusb1_zero_copy.cpp
@@ -15,7 +15,7 @@
 #include <boost/bind.hpp>
 #include <boost/circular_buffer.hpp>
 #include <boost/format.hpp>
-#include <boost/function.hpp>
+#include <functional>
 #include <memory>
 #include <boost/thread/condition_variable.hpp>
 #include <boost/thread/mutex.hpp>
@@ -115,7 +115,7 @@ class libusb_zero_copy_mb : public managed_buffer
 public:
     libusb_zero_copy_mb(libusb_transfer* lut,
         const size_t frame_size,
-        boost::function<void(libusb_zero_copy_mb*)> release_cb,
+        std::function<void(libusb_zero_copy_mb*)> release_cb,
         const bool is_recv,
         const std::string& name)
         : _release_cb(release_cb)
@@ -192,7 +192,7 @@ public:
     }
 
 private:
-    boost::function<void(libusb_zero_copy_mb*)> _release_cb;
+    std::function<void(libusb_zero_copy_mb*)> _release_cb;
     const bool _is_recv;
     const std::string _name;
     libusb_context* _ctx;
diff --git a/host/lib/transport/super_recv_packet_handler.hpp b/host/lib/transport/super_recv_packet_handler.hpp
index a09281459..b19b50b38 100644
--- a/host/lib/transport/super_recv_packet_handler.hpp
+++ b/host/lib/transport/super_recv_packet_handler.hpp
@@ -20,7 +20,7 @@
 #include <uhd/utils/tasks.hpp>
 #include <boost/dynamic_bitset.hpp>
 #include <boost/format.hpp>
-#include <boost/function.hpp>
+#include <functional>
 #include <memory>
 #include <iostream>
 #include <vector>
@@ -36,7 +36,7 @@ UHD_INLINE uint32_t get_context_code(
     return word0 & 0xff;
 }
 
-typedef boost::function<void(void)> handle_overflow_type;
+typedef std::function<void(void)> handle_overflow_type;
 static inline void handle_overflow_nop(void) {}
 
 /***********************************************************************
@@ -49,12 +49,12 @@ static inline void handle_overflow_nop(void) {}
 class recv_packet_handler
 {
 public:
-    typedef boost::function<managed_recv_buffer::sptr(double)> get_buff_type;
-    typedef boost::function<void(const size_t)> handle_flowctrl_type;
+    typedef std::function<managed_recv_buffer::sptr(double)> get_buff_type;
+    typedef std::function<void(const size_t)> handle_flowctrl_type;
     typedef std::function<void(const uint32_t*)> handle_flowctrl_ack_type;
-    typedef boost::function<void(const stream_cmd_t&)> issue_stream_cmd_type;
+    typedef std::function<void(const stream_cmd_t&)> issue_stream_cmd_type;
     typedef void (*vrt_unpacker_type)(const uint32_t*, vrt::if_packet_info_t&);
-    // typedef boost::function<void(const uint32_t *, vrt::if_packet_info_t &)>
+    // typedef std::function<void(const uint32_t *, vrt::if_packet_info_t &)>
     // vrt_unpacker_type;
 
     /*!
diff --git a/host/lib/transport/super_send_packet_handler.hpp b/host/lib/transport/super_send_packet_handler.hpp
index 40ca2e414..21f7357c3 100644
--- a/host/lib/transport/super_send_packet_handler.hpp
+++ b/host/lib/transport/super_send_packet_handler.hpp
@@ -18,7 +18,7 @@
 #include <uhd/utils/byteswap.hpp>
 #include <uhd/utils/tasks.hpp>
 #include <uhd/utils/thread.hpp>
-#include <boost/function.hpp>
+#include <functional>
 #include <chrono>
 #include <iostream>
 #include <thread>