uhd: replaced instanced of std::exception with the uhd exceptions

36 files changed, 100 insertions, 98 deletions

diff --git a/host/lib/convert/gen_convert_pred.py b/host/lib/convert/gen_convert_pred.py
index d2f90bf41..360fbcf44 100644
--- a/host/lib/convert/gen_convert_pred.py
+++ b/host/lib/convert/gen_convert_pred.py
@@ -21,11 +21,11 @@ TMPL_TEXT = """
 /***********************************************************************
  * This file was generated by $file on $time.strftime("%c")
  **********************************************************************/
+\#include <uhd/exception.hpp>
 \#include <boost/tokenizer.hpp>
 \#include <boost/lexical_cast.hpp>
 \#include <boost/detail/endian.hpp>
 \#include <boost/cstdint.hpp>
-\#include <stdexcept>
 \#include <string>
 \#include <vector>
 
@@ -37,9 +37,10 @@ enum dir_type{
     DIR_CPU_TO_OTW = 1
 };
 
-struct pred_error : std::runtime_error{
-    pred_error(const std::string &what)
-    :std::runtime_error("convert::make_pred: " + what){
+struct pred_error : uhd::value_error{
+    pred_error(const std::string &what):
+        uhd::value_error("convert::make_pred: " + what)
+    {
         /* NOP */
     }
 };
diff --git a/host/lib/device.cpp b/host/lib/device.cpp
index 51c66680a..ad37743c1 100644
--- a/host/lib/device.cpp
+++ b/host/lib/device.cpp
@@ -105,14 +105,14 @@ device::sptr device::make(const device_addr_t &hint, size_t which){
 
     //check that we found any devices
     if (dev_addr_makers.size() == 0){
-        throw std::runtime_error(str(
+        throw uhd::key_error(str(
             boost::format("No devices found for ----->\n%s") % hint.to_pp_string()
         ));
     }
 
     //check that the which index is valid
     if (dev_addr_makers.size() <= which){
-        throw std::runtime_error(str(
+        throw uhd::index_error(str(
             boost::format("No device at index %d for ----->\n%s") % which % hint.to_pp_string()
         ));
     }
diff --git a/host/lib/exception.cpp b/host/lib/exception.cpp
index 2299aa93f..e0d33bf48 100644
--- a/host/lib/exception.cpp
+++ b/host/lib/exception.cpp
@@ -38,6 +38,7 @@ make_exception_impl("AssertionError",        assertion_error,         exception)
 make_exception_impl("LookupError",           lookup_error,            exception)
 make_exception_impl("IndexError",            index_error,             lookup_error)
 make_exception_impl("KeyError",              key_error,               lookup_error)
+make_exception_impl("TypeError",             type_error,              exception)
 make_exception_impl("ValueError",            value_error,             exception)
 make_exception_impl("RuntimeError",          runtime_error,           exception)
 make_exception_impl("NotImplementedError",   not_implemented_error,   runtime_error)
diff --git a/host/lib/ic_reg_maps/common.py b/host/lib/ic_reg_maps/common.py
index 986093004..a509936b4 100644
--- a/host/lib/ic_reg_maps/common.py
+++ b/host/lib/ic_reg_maps/common.py
@@ -30,8 +30,8 @@ COMMON_TMPL = """\
 \#define INCLUDED_$(name.upper())_HPP
 
 \#include <uhd/config.hpp>
+\#include <uhd/exception.hpp>
 \#include <boost/cstdint.hpp>
-\#include <stdexcept>
 \#include <set>
 
 class $(name)_t{
@@ -69,7 +69,7 @@ public:
     }
 
     template<typename T> std::set<T> get_changed_addrs(void){
-        if (_state == NULL) throw std::runtime_error("no saved state");
+        if (_state == NULL) throw uhd::runtime_error("no saved state");
         //check each register for changes
         std::set<T> addrs;
         #for $reg in $regs
diff --git a/host/lib/transport/gen_vrt_if_packet.py b/host/lib/transport/gen_vrt_if_packet.py
index 427217eb6..8481932ed 100755
--- a/host/lib/transport/gen_vrt_if_packet.py
+++ b/host/lib/transport/gen_vrt_if_packet.py
@@ -31,10 +31,10 @@ TMPL_TEXT = """
  * This file was generated by $file on $time.strftime("%c")
  **********************************************************************/
 
+\#include <uhd/exception.hpp>
 \#include <uhd/transport/vrt_if_packet.hpp>
 \#include <uhd/utils/byteswap.hpp>
 \#include <boost/detail/endian.hpp>
-\#include <stdexcept>
 \#include <vector>
 
 //define the endian macros to convert integers
@@ -157,7 +157,7 @@ void vrt::if_hdr_unpack_$(suffix)(
 
     //failure case
     if (if_packet_info.num_packet_words32 < packet_words32)
-        throw std::runtime_error("bad vrt header or packet fragment");
+        throw uhd::value_error("bad vrt header or packet fragment");
     */
     //Fix for short packets sent from the fpga:
     //  Use the num_packet_words32 passed in as input,
@@ -223,7 +223,7 @@ void vrt::if_hdr_unpack_$(suffix)(
         ########## Variables ##########
             //another failure case
             if (packet_words32 < $($num_header_words + $num_trailer_words))
-                throw std::runtime_error("bad vrt header or invalid packet length");
+                throw uhd::value_error("bad vrt header or invalid packet length");
             if_packet_info.num_header_words32 = $num_header_words;
             if_packet_info.num_payload_words32 = packet_words32 - $($num_header_words + $num_trailer_words);
         break;
diff --git a/host/lib/transport/libusb1_base.cpp b/host/lib/transport/libusb1_base.cpp
index aea1a2360..6d4df7875 100644
--- a/host/lib/transport/libusb1_base.cpp
+++ b/host/lib/transport/libusb1_base.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -93,7 +93,7 @@ public:
         //allocate a new list of devices
         libusb_device** dev_list;
         ssize_t ret = libusb_get_device_list(sess->get_context(), &dev_list);
-        if (ret < 0) throw std::runtime_error("cannot enumerate usb devices");
+        if (ret < 0) throw uhd::os_error("cannot enumerate usb devices");
 
         //fill the vector of device references
         for (size_t i = 0; i < size_t(ret); i++) _devs.push_back(
@@ -206,9 +206,9 @@ libusb::device_handle::sptr libusb::device_handle::get_cached_handle(device::spt
         handles[dev->get()] = new_handle;
         return new_handle;
     }
-    catch(const std::exception &e){
+    catch(const uhd::exception &e){
         std::cerr << "USB open failed: see the application notes for your device." << std::endl;
-        throw std::runtime_error(e.what());
+        throw;
     }
 }
 
diff --git a/host/lib/transport/usb_dummy_impl.cpp b/host/lib/transport/usb_dummy_impl.cpp
index 419a52279..930678405 100644
--- a/host/lib/transport/usb_dummy_impl.cpp
+++ b/host/lib/transport/usb_dummy_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -28,12 +28,12 @@ std::vector<usb_device_handle::sptr> usb_device_handle::get_device_list(boost::u
 }
 
 usb_control::sptr usb_control::make(usb_device_handle::sptr){
-    throw std::runtime_error("no usb support -> usb_control::make not implemented");
+    throw uhd::not_implemented_error("no usb support -> usb_control::make not implemented");
 }
 
 usb_zero_copy::sptr usb_zero_copy::make(
     usb_device_handle::sptr,
     size_t, size_t, const device_addr_t &
 ){
-    throw std::runtime_error("no usb support -> usb_zero_copy::make not implemented");
+    throw uhd::not_implemented_error("no usb support -> usb_zero_copy::make not implemented");
 }
diff --git a/host/lib/types/device_addr.cpp b/host/lib/types/device_addr.cpp
index 7f2031272..193f76f8c 100644
--- a/host/lib/types/device_addr.cpp
+++ b/host/lib/types/device_addr.cpp
@@ -48,7 +48,7 @@ device_addr_t::device_addr_t(const std::string &args){
                 goto continue_next_arg;
             }
         }
-        throw std::runtime_error("invalid args string: "+args);
+        throw uhd::value_error("invalid args string: "+args);
         continue_next_arg: continue;
     }
 }
diff --git a/host/lib/types/mac_addr.cpp b/host/lib/types/mac_addr.cpp
index a65c8a45d..a5cb90f97 100644
--- a/host/lib/types/mac_addr.cpp
+++ b/host/lib/types/mac_addr.cpp
@@ -39,7 +39,7 @@ mac_addr_t mac_addr_t::from_string(const std::string &mac_addr_str){
 
     try{
         if (mac_addr_str.size() != 17){
-            throw std::runtime_error("expected exactly 17 characters");
+            throw uhd::value_error("expected exactly 17 characters");
         }
 
         //split the mac addr hex string at the colons
@@ -54,7 +54,7 @@ mac_addr_t mac_addr_t::from_string(const std::string &mac_addr_str){
 
     }
     catch(std::exception const& e){
-        throw std::runtime_error(str(
+        throw uhd::value_error(str(
             boost::format("Invalid mac address: %s\n\t%s") % mac_addr_str % e.what()
         ));
     }
diff --git a/host/lib/types/ranges.cpp b/host/lib/types/ranges.cpp
index 4a0d05d80..6e39bc688 100644
--- a/host/lib/types/ranges.cpp
+++ b/host/lib/types/ranges.cpp
@@ -16,10 +16,10 @@
 //
 
 #include <uhd/types/ranges.hpp>
+#include <uhd/exception.hpp>
 #include <boost/math/special_functions/round.hpp>
 #include <boost/foreach.hpp>
 #include <algorithm>
-#include <stdexcept>
 #include <sstream>
 
 using namespace uhd;
@@ -48,7 +48,7 @@ range_t::range_t(
     _impl(UHD_PIMPL_MAKE(impl, (start, stop, step)))
 {
     if (stop < start){
-        throw std::invalid_argument("cannot make range where stop < start");
+        throw uhd::value_error("cannot make range where stop < start");
     }
 }
 
@@ -78,11 +78,11 @@ const std::string range_t::to_pp_string(void) const{
  **********************************************************************/
 void check_meta_range_monotonic(const meta_range_t &mr){
     if (mr.empty()){
-        throw std::runtime_error("meta-range cannot be empty");
+        throw uhd::value_error("meta-range cannot be empty");
     }
     for (size_t i = 1; i < mr.size(); i++){
         if (mr.at(i).start() < mr.at(i-1).stop()){
-            throw std::runtime_error("meta-range is not monotonic");
+            throw uhd::value_error("meta-range is not monotonic");
         }
     }
 }
diff --git a/host/lib/usrp/dboard/db_basic_and_lf.cpp b/host/lib/usrp/dboard/db_basic_and_lf.cpp
index 3de9adbec..3fffeab0c 100644
--- a/host/lib/usrp/dboard/db_basic_and_lf.cpp
+++ b/host/lib/usrp/dboard/db_basic_and_lf.cpp
@@ -193,7 +193,7 @@ void basic_rx::rx_set(const wax::obj &key_, const wax::obj &val){
 
     case SUBDEV_PROP_ANTENNA:
         if (val.as<std::string>().empty()) return;
-        throw std::runtime_error("no selectable antennas on this board");
+        throw uhd::value_error("no selectable antennas on this board");
 
     case SUBDEV_PROP_FREQ:
         return; // it wont do you much good, but you can set it
@@ -300,7 +300,7 @@ void basic_tx::tx_set(const wax::obj &key_, const wax::obj &val){
 
     case SUBDEV_PROP_ANTENNA:
         if (val.as<std::string>().empty()) return;
-        throw std::runtime_error("no selectable antennas on this board");
+        throw uhd::value_error("no selectable antennas on this board");
 
     case SUBDEV_PROP_FREQ:
         return; // it wont do you much good, but you can set it
diff --git a/host/lib/usrp/dboard_base.cpp b/host/lib/usrp/dboard_base.cpp
index 6c4e29d9e..999dd9ffc 100644
--- a/host/lib/usrp/dboard_base.cpp
+++ b/host/lib/usrp/dboard_base.cpp
@@ -59,12 +59,12 @@ dboard_id_t dboard_base::get_tx_id(void){
  **********************************************************************/
 xcvr_dboard_base::xcvr_dboard_base(ctor_args_t args) : dboard_base(args){
     if (get_rx_id() == dboard_id_t::none()){
-        throw std::runtime_error(str(boost::format(
+        throw uhd::runtime_error(str(boost::format(
             "cannot create xcvr board when the rx id is \"%s\""
         ) % dboard_id_t::none().to_pp_string()));
     }
     if (get_tx_id() == dboard_id_t::none()){
-        throw std::runtime_error(str(boost::format(
+        throw uhd::runtime_error(str(boost::format(
             "cannot create xcvr board when the tx id is \"%s\""
         ) % dboard_id_t::none().to_pp_string()));
     }
@@ -79,7 +79,7 @@ xcvr_dboard_base::~xcvr_dboard_base(void){
  **********************************************************************/
 rx_dboard_base::rx_dboard_base(ctor_args_t args) : dboard_base(args){
     if (get_tx_id() != dboard_id_t::none()){
-        throw std::runtime_error(str(boost::format(
+        throw uhd::runtime_error(str(boost::format(
             "cannot create rx board when the tx id is \"%s\""
             " -> expected a tx id of \"%s\""
         ) % get_tx_id().to_pp_string() % dboard_id_t::none().to_pp_string()));
@@ -91,11 +91,11 @@ rx_dboard_base::~rx_dboard_base(void){
 }
 
 void rx_dboard_base::tx_get(const wax::obj &, wax::obj &){
-    throw std::runtime_error("cannot call tx_get on a rx dboard");
+    throw uhd::runtime_error("cannot call tx_get on a rx dboard");
 }
 
 void rx_dboard_base::tx_set(const wax::obj &, const wax::obj &){
-    throw std::runtime_error("cannot call tx_set on a rx dboard");
+    throw uhd::runtime_error("cannot call tx_set on a rx dboard");
 }
 
 /***********************************************************************
@@ -103,7 +103,7 @@ void rx_dboard_base::tx_set(const wax::obj &, const wax::obj &){
  **********************************************************************/
 tx_dboard_base::tx_dboard_base(ctor_args_t args) : dboard_base(args){
     if (get_rx_id() != dboard_id_t::none()){
-        throw std::runtime_error(str(boost::format(
+        throw uhd::runtime_error(str(boost::format(
             "cannot create tx board when the rx id is \"%s\""
             " -> expected a rx id of \"%s\""
         ) % get_rx_id().to_pp_string() % dboard_id_t::none().to_pp_string()));
@@ -115,9 +115,9 @@ tx_dboard_base::~tx_dboard_base(void){
 }
 
 void tx_dboard_base::rx_get(const wax::obj &, wax::obj &){
-    throw std::runtime_error("cannot call rx_get on a tx dboard");
+    throw uhd::runtime_error("cannot call rx_get on a tx dboard");
 }
 
 void tx_dboard_base::rx_set(const wax::obj &, const wax::obj &){
-    throw std::runtime_error("cannot call rx_set on a tx dboard");
+    throw uhd::runtime_error("cannot call rx_set on a tx dboard");
 }
diff --git a/host/lib/usrp/dboard_manager.cpp b/host/lib/usrp/dboard_manager.cpp
index f9d43901d..9055905b1 100644
--- a/host/lib/usrp/dboard_manager.cpp
+++ b/host/lib/usrp/dboard_manager.cpp
@@ -50,7 +50,7 @@ void dboard_manager::register_dboard(
 ){
     //std::cout << "registering: " << name << std::endl;
     if (get_id_to_args_map().has_key(dboard_id)){
-        throw std::runtime_error(str(boost::format(
+        throw uhd::key_error(str(boost::format(
             "The dboard id %s is already registered to %s."
         ) % dboard_id.to_string() % dboard_id.to_pp_string()));
     }
@@ -315,7 +315,7 @@ prop_names_t dboard_manager_impl::get_tx_subdev_names(void){
 }
 
 wax::obj dboard_manager_impl::get_rx_subdev(const std::string &subdev_name){
-    if (not _rx_dboards.has_key(subdev_name)) throw std::invalid_argument(
+    if (not _rx_dboards.has_key(subdev_name)) throw uhd::key_error(
         str(boost::format("Unknown rx subdev name %s") % subdev_name)
     );
     //get a link to the rx subdev proxy
@@ -323,7 +323,7 @@ wax::obj dboard_manager_impl::get_rx_subdev(const std::string &subdev_name){
 }
 
 wax::obj dboard_manager_impl::get_tx_subdev(const std::string &subdev_name){
-    if (not _tx_dboards.has_key(subdev_name)) throw std::invalid_argument(
+    if (not _tx_dboards.has_key(subdev_name)) throw uhd::key_error(
         str(boost::format("Unknown tx subdev name %s") % subdev_name)
     );
     //get a link to the tx subdev proxy
diff --git a/host/lib/usrp/gps_ctrl.cpp b/host/lib/usrp/gps_ctrl.cpp
index e868568a0..e0ab6de90 100644
--- a/host/lib/usrp/gps_ctrl.cpp
+++ b/host/lib/usrp/gps_ctrl.cpp
@@ -167,7 +167,7 @@ public:
       break;
     case GPS_TYPE_NONE:
     default:
-      throw std::runtime_error("get_time(): Unsupported GPS or no GPS detected\n");
+      throw uhd::runtime_error("get_time(): Unsupported GPS or no GPS detected\n");
       break;
     }
     return now;
diff --git a/host/lib/usrp/misc_utils.cpp b/host/lib/usrp/misc_utils.cpp
index 9074c3fe6..6fcbdfe3d 100644
--- a/host/lib/usrp/misc_utils.cpp
+++ b/host/lib/usrp/misc_utils.cpp
@@ -167,7 +167,7 @@ static void verify_xx_subdev_spec(
         BOOST_FOREACH(subdev_spec_pair_t &pair, subdev_spec){
             //empty db name means select dboard automatically
             if (pair.db_name.empty()){
-                if (dboard_names.size() != 1) throw std::runtime_error(
+                if (dboard_names.size() != 1) throw uhd::value_error(
                     "A daughterboard name must be provided for multi-slot motherboards: " + subdev_spec.to_string()
                 );
                 pair.db_name = dboard_names.front();
@@ -178,7 +178,7 @@ static void verify_xx_subdev_spec(
 
             //empty sd name means select the subdev automatically
             if (pair.sd_name.empty()){
-                if (subdev_names.size() != 1) throw std::runtime_error(
+                if (subdev_names.size() != 1) throw uhd::value_error(
                     "A subdevice name must be provided for multi-subdev daughterboards: " + subdev_spec.to_string()
                 );
                 pair.sd_name = subdev_names.front();
@@ -186,7 +186,7 @@ static void verify_xx_subdev_spec(
             uhd::assert_has(subdev_names, pair.sd_name, xx_type + " subdev name");
         }
     }catch(const std::exception &e){
-        throw std::runtime_error(str(boost::format(
+        throw uhd::value_error(str(boost::format(
             "Validate %s subdev spec failed: %s\n    %s"
         ) % xx_type % subdev_spec.to_string() % e.what()));
     }
@@ -200,7 +200,7 @@ static void verify_xx_subdev_spec(
                 dboard[named_prop_t(DBOARD_PROP_SUBDEV, sd_name)][SUBDEV_PROP_ENABLED] = enable;
             }
             catch(const std::exception &e){
-                throw std::runtime_error(str(boost::format(
+                throw uhd::runtime_error(str(boost::format(
                     "Cannot set enabled property on subdevice %s:%s\n    %s"
                 ) % db_name % sd_name % e.what()));
             }
diff --git a/host/lib/usrp/multi_usrp.cpp b/host/lib/usrp/multi_usrp.cpp
index 3329ea4fe..0acc53397 100644
--- a/host/lib/usrp/multi_usrp.cpp
+++ b/host/lib/usrp/multi_usrp.cpp
@@ -29,7 +29,6 @@
 #include <boost/thread.hpp>
 #include <boost/foreach.hpp>
 #include <boost/format.hpp>
-#include <stdexcept>
 #include <iostream>
 
 using namespace uhd;
@@ -153,7 +152,7 @@ public:
         while(true){
             if (get_time_last_pps() != time_start_last_pps) break;
             if ((get_time_now() - time_start) > time_spec_t(1.1)){
-                throw std::runtime_error(
+                throw uhd::runtime_error(
                     "Board 0 may not be getting a PPS signal!\n"
                     "No PPS detected within the time interval.\n"
                     "See the application notes for your device.\n"
diff --git a/host/lib/usrp/subdev_spec.cpp b/host/lib/usrp/subdev_spec.cpp
index d5d950f1f..6912afec8 100644
--- a/host/lib/usrp/subdev_spec.cpp
+++ b/host/lib/usrp/subdev_spec.cpp
@@ -16,11 +16,11 @@
 //
 
 #include <uhd/usrp/subdev_spec.hpp>
+#include <uhd/exception.hpp>
 #include <boost/algorithm/string.hpp> //for split
 #include <boost/tokenizer.hpp>
 #include <boost/format.hpp>
 #include <boost/foreach.hpp>
-#include <stdexcept>
 #include <sstream>
 #include <vector>
 
@@ -51,7 +51,7 @@ subdev_spec_t::subdev_spec_t(const std::string &markup){
         switch(db_sd.size()){
         case 1: this->push_back(subdev_spec_pair_t("", db_sd.front())); break;
         case 2: this->push_back(subdev_spec_pair_t(db_sd.front(), db_sd.back())); break;
-        default: throw std::runtime_error("invalid subdev-spec markup string: "+markup);
+        default: throw uhd::value_error("invalid subdev-spec markup string: "+markup);
         }
     }
 }
diff --git a/host/lib/usrp/usrp1/dboard_iface.cpp b/host/lib/usrp/usrp1/dboard_iface.cpp
index 67da51ee9..53ccd4d55 100644
--- a/host/lib/usrp/usrp1/dboard_iface.cpp
+++ b/host/lib/usrp/usrp1/dboard_iface.cpp
@@ -329,7 +329,7 @@ static boost::uint32_t unit_to_otw_spi_dev(dboard_iface::unit_t unit,
         else
             break;
     }
-    throw std::invalid_argument("unknown unit type");
+    UHD_THROW_INVALID_CODE_PATH();
 }
 
 void usrp1_dboard_iface::write_spi(unit_t unit,
diff --git a/host/lib/usrp/usrp1/mboard_impl.cpp b/host/lib/usrp/usrp1/mboard_impl.cpp
index 9f0512d6d..4e2fad6e5 100644
--- a/host/lib/usrp/usrp1/mboard_impl.cpp
+++ b/host/lib/usrp/usrp1/mboard_impl.cpp
@@ -161,7 +161,7 @@ static boost::uint32_t calc_tx_mux(
         //sanity check, only 1 channel per slot
         slot_to_chan_count[pair.db_name]++;
         if (slot_to_chan_count[pair.db_name] > 1){
-            throw std::runtime_error(str(boost::format(
+            throw uhd::value_error(str(boost::format(
                 "dboard slot %s assigned to multiple channels in subdev spec %s"
             ) % pair.db_name % subdev_spec.to_string()));
         }
@@ -343,7 +343,7 @@ void usrp1_impl::mboard_set(const wax::obj &key, const wax::obj &val)
     case MBOARD_PROP_RX_SUBDEV_SPEC:
         _rx_subdev_spec = val.as<subdev_spec_t>();
         if (_rx_subdev_spec.size() > this->get_num_ddcs()){
-            throw std::runtime_error(str(boost::format(
+            throw uhd::value_error(str(boost::format(
                 "USRP1 suports up to %u RX channels.\n"
                 "However, this RX subdev spec requires %u channels\n"
             ) % this->get_num_ddcs() % _rx_subdev_spec.size()));
@@ -356,7 +356,7 @@ void usrp1_impl::mboard_set(const wax::obj &key, const wax::obj &val)
     case MBOARD_PROP_TX_SUBDEV_SPEC:
         _tx_subdev_spec = val.as<subdev_spec_t>();
         if (_tx_subdev_spec.size() > this->get_num_ducs()){
-            throw std::runtime_error(str(boost::format(
+            throw uhd::value_error(str(boost::format(
                 "USRP1 suports up to %u TX channels.\n"
                 "However, this TX subdev spec requires %u channels\n"
             ) % this->get_num_ducs() % _tx_subdev_spec.size()));
diff --git a/host/lib/usrp/usrp2/codec_ctrl.cpp b/host/lib/usrp/usrp2/codec_ctrl.cpp
index 0756c7971..be5c2c899 100644
--- a/host/lib/usrp/usrp2/codec_ctrl.cpp
+++ b/host/lib/usrp/usrp2/codec_ctrl.cpp
@@ -19,10 +19,10 @@
 #include "ad9777_regs.hpp"
 #include "ads62p44_regs.hpp"
 #include "usrp2_regs.hpp"
+#include <uhd/exception.hpp>
 #include <boost/cstdint.hpp>
 #include <boost/foreach.hpp>
 #include <iostream>
-#include <uhd/exception.hpp>
 
 static const bool codec_ctrl_debug = false;
 
@@ -118,7 +118,7 @@ public:
         case 2: _ad9777_regs.modulation_mode = ad9777_regs_t::MODULATION_MODE_FS_2; break;
         case 4: _ad9777_regs.modulation_mode = ad9777_regs_t::MODULATION_MODE_FS_4; break;
         case 8: _ad9777_regs.modulation_mode = ad9777_regs_t::MODULATION_MODE_FS_8; break;
-        default: throw std::runtime_error("unknown modulation mode for ad9777");
+        default: throw uhd::value_error("unknown modulation mode for ad9777");
         }
 
         this->send_ad9777_reg(0x01); //set the register
diff --git a/host/lib/usrp/usrp2/io_impl.cpp b/host/lib/usrp/usrp2/io_impl.cpp
index b4f3e0873..082d77d3e 100644
--- a/host/lib/usrp/usrp2/io_impl.cpp
+++ b/host/lib/usrp/usrp2/io_impl.cpp
@@ -18,6 +18,7 @@
 #include "../../transport/vrt_packet_handler.hpp"
 #include "usrp2_impl.hpp"
 #include "usrp2_regs.hpp"
+#include <uhd/exception.hpp>
 #include <uhd/usrp/mboard_props.hpp>
 #include <uhd/utils/byteswap.hpp>
 #include <uhd/utils/thread_priority.hpp>
diff --git a/host/lib/usrp/usrp2/mboard_impl.cpp b/host/lib/usrp/usrp2/mboard_impl.cpp
index f59b7b7dd..9049d4025 100644
--- a/host/lib/usrp/usrp2/mboard_impl.cpp
+++ b/host/lib/usrp/usrp2/mboard_impl.cpp
@@ -17,12 +17,12 @@
 
 #include "usrp2_impl.hpp"
 #include "usrp2_regs.hpp"
+#include <uhd/exception.hpp>
 #include <uhd/usrp/gps_ctrl.hpp>
 #include <uhd/usrp/misc_utils.hpp>
 #include <uhd/usrp/dsp_utils.hpp>
 #include <uhd/usrp/mboard_props.hpp>
 #include <uhd/utils/byteswap.hpp>
-#include <uhd/exception.hpp>
 #include <uhd/utils/algorithm.hpp>
 #include <boost/bind.hpp>
 #include <iostream>
@@ -118,7 +118,7 @@ usrp2_mboard_impl::usrp2_mboard_impl(
         else if (device_addr["mimo_mode"] == "slave"){
             _mimo_clocking_mode_is_master = false;
         }
-        else throw std::runtime_error(
+        else throw uhd::value_error(
             "mimo_mode must be set to master or slave"
         );
     }
@@ -170,14 +170,14 @@ void usrp2_mboard_impl::update_clock_config(void){
     //translate pps source enums
     switch(_clock_config.pps_source){
     case clock_config_t::PPS_SMA:  pps_flags |= U2_FLAG_TIME64_PPS_SMA;  break;
-    default: throw std::runtime_error("unhandled clock configuration pps source");
+    default: throw uhd::value_error("unhandled clock configuration pps source");
     }
 
     //translate pps polarity enums
     switch(_clock_config.pps_polarity){
     case clock_config_t::PPS_POS: pps_flags |= U2_FLAG_TIME64_PPS_POSEDGE; break;
     case clock_config_t::PPS_NEG: pps_flags |= U2_FLAG_TIME64_PPS_NEGEDGE; break;
-    default: throw std::runtime_error("unhandled clock configuration pps polarity");
+    default: throw uhd::value_error("unhandled clock configuration pps polarity");
     }
 
     //set the pps flags
@@ -190,7 +190,7 @@ void usrp2_mboard_impl::update_clock_config(void){
         switch(_clock_config.ref_source){
         case clock_config_t::REF_INT : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x12); break;
         case clock_config_t::REF_SMA : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x1C); break;
-        default: throw std::runtime_error("unhandled clock configuration reference source");
+        default: throw uhd::value_error("unhandled clock configuration reference source");
         }
         _clock_ctrl->enable_external_ref(true); //USRP2P has an internal 10MHz TCXO
         break;
@@ -200,7 +200,7 @@ void usrp2_mboard_impl::update_clock_config(void){
         switch(_clock_config.ref_source){
         case clock_config_t::REF_INT : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x10); break;
         case clock_config_t::REF_SMA : _iface->poke32(_iface->regs.misc_ctrl_clock, 0x1C); break;
-        default: throw std::runtime_error("unhandled clock configuration reference source");
+        default: throw uhd::value_error("unhandled clock configuration reference source");
         }
         _clock_ctrl->enable_external_ref(_clock_config.ref_source != clock_config_t::REF_INT);
         break;
diff --git a/host/lib/usrp/usrp2/usrp2_iface.cpp b/host/lib/usrp/usrp2/usrp2_iface.cpp
index 462ebab16..3a7ed8351 100644
--- a/host/lib/usrp/usrp2/usrp2_iface.cpp
+++ b/host/lib/usrp/usrp2/usrp2_iface.cpp
@@ -25,7 +25,6 @@
 #include <boost/assign/list_of.hpp>
 #include <boost/format.hpp>
 #include <boost/tokenizer.hpp>
-#include <stdexcept>
 #include <algorithm>
 
 using namespace uhd;
@@ -63,7 +62,7 @@ public:
         //check the fpga compatibility number
         const boost::uint32_t fpga_compat_num = this->peek32(this->regs.compat_num_rb);
         if (fpga_compat_num != USRP2_FPGA_COMPAT_NUM){
-            throw std::runtime_error(str(boost::format(
+            throw uhd::runtime_error(str(boost::format(
                 "Expected fpga compatibility number %d, but got %d:\n"
                 "The fpga build is not compatible with the host code build."
             ) % int(USRP2_FPGA_COMPAT_NUM) % fpga_compat_num));
@@ -245,7 +244,7 @@ public:
         while(true){
             size_t len = _ctrl_transport->recv(boost::asio::buffer(usrp2_ctrl_data_in_mem), CTRL_RECV_TIMEOUT);
             if(len >= sizeof(boost::uint32_t) and ntohl(ctrl_data_in->proto_ver) != USRP2_FW_COMPAT_NUM){
-                throw std::runtime_error(str(boost::format(
+                throw uhd::runtime_error(str(boost::format(
                     "Expected protocol compatibility number %d, but got %d:\n"
                     "The firmware build is not compatible with the host code build."
                 ) % int(USRP2_FW_COMPAT_NUM) % ntohl(ctrl_data_in->proto_ver)));
@@ -256,7 +255,7 @@ public:
             if (len == 0) break; //timeout
             //didnt get seq or bad packet, continue looking...
         }
-        throw std::runtime_error("no control response");
+        throw uhd::runtime_error("no control response");
     }
 
     rev_type get_rev(void){
diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp
index afd73401f..0a23e3eff 100644
--- a/host/lib/usrp/usrp2/usrp2_impl.cpp
+++ b/host/lib/usrp/usrp2/usrp2_impl.cpp
@@ -16,6 +16,7 @@
 //
 
 #include "usrp2_impl.hpp"
+#include <uhd/exception.hpp>
 #include <uhd/transport/if_addrs.hpp>
 #include <uhd/transport/udp_zero_copy.hpp>
 #include <uhd/usrp/device_props.hpp>
@@ -47,7 +48,7 @@ static device_addrs_t usrp2_find(const device_addr_t &hint_){
         device_addrs_t found_devices;
         BOOST_FOREACH(const device_addr_t &hint_i, hints){
             device_addrs_t found_devices_i = usrp2_find(hint_i);
-            if (found_devices_i.size() != 1) throw std::runtime_error(str(boost::format(
+            if (found_devices_i.size() != 1) throw uhd::value_error(str(boost::format(
                 "Could not resolve device hint \"%s\" to a single device."
             ) % hint_i.to_string()));
             found_devices.push_back(found_devices_i[0]);
diff --git a/host/lib/usrp/usrp_e100/clock_ctrl.cpp b/host/lib/usrp/usrp_e100/clock_ctrl.cpp
index 6128894cc..b4ddcd271 100644
--- a/host/lib/usrp/usrp_e100/clock_ctrl.cpp
+++ b/host/lib/usrp/usrp_e100/clock_ctrl.cpp
@@ -158,7 +158,7 @@ static clock_settings_type get_clock_settings(double rate){
         }
     }
 
-    throw std::runtime_error(str(boost::format(
+    throw uhd::value_error(str(boost::format(
         "USRP-E100 clock control: could not calculate settings for clock rate %fMHz"
     ) % (rate/1e6)));
 }
diff --git a/host/lib/usrp/usrp_e100/dboard_iface.cpp b/host/lib/usrp/usrp_e100/dboard_iface.cpp
index ee6ca3933..ee1b852bf 100644
--- a/host/lib/usrp/usrp_e100/dboard_iface.cpp
+++ b/host/lib/usrp/usrp_e100/dboard_iface.cpp
@@ -235,7 +235,7 @@ static boost::uint32_t unit_to_otw_spi_dev(dboard_iface::unit_t unit){
     case dboard_iface::UNIT_TX: return UE_SPI_SS_TX_DB;
     case dboard_iface::UNIT_RX: return UE_SPI_SS_RX_DB;
     }
-    throw std::invalid_argument("unknown unit type");
+    UHD_THROW_INVALID_CODE_PATH();
 }
 
 void usrp_e100_dboard_iface::write_spi(
diff --git a/host/lib/usrp/usrp_e100/fpga_downloader.cpp b/host/lib/usrp/usrp_e100/fpga_downloader.cpp
index 9836cbc02..95665da83 100644
--- a/host/lib/usrp/usrp_e100/fpga_downloader.cpp
+++ b/host/lib/usrp/usrp_e100/fpga_downloader.cpp
@@ -87,7 +87,7 @@ gpio::gpio(unsigned int gpio_num, gpio_direction pin_direction)
 	std::fstream export_file;
 
 	export_file.open("/sys/class/gpio/export", std::ios::out);
-	if (not export_file.is_open()) throw std::runtime_error(
+	if (not export_file.is_open()) throw uhd::os_error(
 		"Failed to open gpio export file."
 	);
 
@@ -211,7 +211,7 @@ static void send_file_to_fpga(const std::string &file_name, gpio &error, gpio &d
 	std::ifstream bitstream;
 
 	bitstream.open(file_name.c_str(), std::ios::binary);
-	if (!bitstream.is_open()) throw std::runtime_error(
+	if (!bitstream.is_open()) throw uhd::os_error(
 		"Coult not open the file: " + file_name
 	);
 
diff --git a/host/lib/usrp/usrp_e100/mboard_impl.cpp b/host/lib/usrp/usrp_e100/mboard_impl.cpp
index 07476bd6c..cec4fd0ad 100644
--- a/host/lib/usrp/usrp_e100/mboard_impl.cpp
+++ b/host/lib/usrp/usrp_e100/mboard_impl.cpp
@@ -17,9 +17,9 @@
 
 #include "usrp_e100_impl.hpp"
 #include "usrp_e100_regs.hpp"
+#include <uhd/exception.hpp>
 #include <uhd/usrp/dsp_utils.hpp>
 #include <uhd/usrp/misc_utils.hpp>
-#include <uhd/exception.hpp>
 #include <uhd/usrp/mboard_props.hpp>
 #include <boost/bind.hpp>
 #include <iostream>
@@ -53,7 +53,7 @@ void usrp_e100_impl::update_clock_config(void){
     switch(_clock_config.pps_polarity){
     case clock_config_t::PPS_POS: pps_flags |= UE_FLAG_TIME64_PPS_POSEDGE; break;
     case clock_config_t::PPS_NEG: pps_flags |= UE_FLAG_TIME64_PPS_NEGEDGE; break;
-    default: throw std::runtime_error("unhandled clock configuration pps polarity");
+    default: throw uhd::value_error("unhandled clock configuration pps polarity");
     }
 
     //set the pps flags
@@ -64,7 +64,7 @@ void usrp_e100_impl::update_clock_config(void){
     case clock_config_t::REF_AUTO: _clock_ctrl->use_auto_ref(); break;
     case clock_config_t::REF_INT: _clock_ctrl->use_internal_ref(); break;
     case clock_config_t::REF_SMA: _clock_ctrl->use_auto_ref(); break;
-    default: throw std::runtime_error("unhandled clock configuration ref source");
+    default: throw uhd::value_error("unhandled clock configuration ref source");
     }
 }
 
diff --git a/host/lib/usrp/usrp_e100/usrp_e100_iface.cpp b/host/lib/usrp/usrp_e100/usrp_e100_iface.cpp
index 687008df8..076ec2fd6 100644
--- a/host/lib/usrp/usrp_e100/usrp_e100_iface.cpp
+++ b/host/lib/usrp/usrp_e100/usrp_e100_iface.cpp
@@ -37,7 +37,7 @@ class i2c_dev_iface : public i2c_iface{
 public:
     i2c_dev_iface(const std::string &node){
         if ((_node_fd = ::open(node.c_str(), O_RDWR)) < 0){
-            throw std::runtime_error("Failed to open " + node);
+            throw uhd::io_error("Failed to open " + node);
         }
     }
 
@@ -106,7 +106,7 @@ public:
     {
         //open the device node and check file descriptor
         if ((_node_fd = ::open(node.c_str(), O_RDWR)) < 0){
-            throw std::runtime_error("Failed to open " + node);
+            throw uhd::io_error("Failed to open " + node);
         }
 
         //very first thing, reset all the wishbone, always do first!
@@ -127,7 +127,7 @@ public:
         boost::mutex::scoped_lock lock(_ctrl_mutex);
 
         if (::ioctl(_node_fd, request, mem) < 0){
-            throw std::runtime_error(str(
+            throw uhd::os_error(str(
                 boost::format("ioctl failed with request %d") % request
             ));
         }
diff --git a/host/lib/usrp/usrp_e100/usrp_e100_impl.cpp b/host/lib/usrp/usrp_e100/usrp_e100_impl.cpp
index d4404fc88..1385688e0 100644
--- a/host/lib/usrp/usrp_e100/usrp_e100_impl.cpp
+++ b/host/lib/usrp/usrp_e100/usrp_e100_impl.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -103,7 +103,7 @@ static device::sptr usrp_e100_make(const device_addr_t &device_addr){
     size_t fpga_hash = 0;
     {
         std::ifstream file(usrp_e100_fpga_image.c_str());
-        if (not file.good()) throw std::runtime_error(
+        if (not file.good()) throw uhd::io_error(
             "cannot open fpga file for read: " + usrp_e100_fpga_image
         );
         do{
@@ -132,7 +132,7 @@ static device::sptr usrp_e100_make(const device_addr_t &device_addr){
     //check that the compatibility is correct
     fpga_compat_num = iface->peek16(UE_REG_MISC_COMPAT);
     if (fpga_compat_num != USRP_E_COMPAT_NUM){
-        throw std::runtime_error(str(boost::format(
+        throw uhd::runtime_error(str(boost::format(
             "Expected fpga compatibility number 0x%x, but got 0x%x:\n"
             "The fpga build is not compatible with the host code build."
         ) % USRP_E_COMPAT_NUM % fpga_compat_num));
diff --git a/host/lib/utils/images.cpp b/host/lib/utils/images.cpp
index 395e542c1..3756f035a 100644
--- a/host/lib/utils/images.cpp
+++ b/host/lib/utils/images.cpp
@@ -16,9 +16,9 @@
 //
 
 #include <uhd/utils/images.hpp>
+#include <uhd/exception.hpp>
 #include <boost/foreach.hpp>
 #include <boost/filesystem.hpp>
-#include <stdexcept>
 #include <vector>
 
 namespace fs = boost::filesystem;
@@ -36,5 +36,5 @@ std::string uhd::find_image_path(const std::string &image_name){
         fs::path image_path = path / image_name;
         if (fs::exists(image_path)) return image_path.file_string();
     }
-    throw std::runtime_error("Could not find path for image: " + image_name);
+    throw uhd::io_error("Could not find path for image: " + image_name);
 }
diff --git a/host/lib/utils/load_modules.cpp b/host/lib/utils/load_modules.cpp
index fa9b22438..ad39960bb 100644
--- a/host/lib/utils/load_modules.cpp
+++ b/host/lib/utils/load_modules.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -16,11 +16,11 @@
 //
 
 #include <uhd/utils/static.hpp>
+#include <uhd/exception.hpp>
 #include <boost/format.hpp>
 #include <boost/foreach.hpp>
 #include <boost/filesystem.hpp>
 #include <iostream>
-#include <stdexcept>
 #include <string>
 #include <vector>
 
@@ -33,7 +33,7 @@ namespace fs = boost::filesystem;
 #include <dlfcn.h>
 static void load_module(const std::string &file_name){
     if (dlopen(file_name.c_str(), RTLD_LAZY) == NULL){
-        throw std::runtime_error(str(
+        throw uhd::os_error(str(
             boost::format("dlopen failed to load \"%s\"") % file_name
         ));
     }
@@ -45,7 +45,7 @@ static void load_module(const std::string &file_name){
 #include <windows.h>
 static void load_module(const std::string &file_name){
     if (LoadLibrary(file_name.c_str()) == NULL){
-        throw std::runtime_error(str(
+        throw uhd::os_error(str(
             boost::format("LoadLibrary failed to load \"%s\"") % file_name
         ));
     }
@@ -55,7 +55,7 @@ static void load_module(const std::string &file_name){
 
 #ifdef HAVE_LOAD_MODULES_DUMMY
 static void load_module(const std::string &file_name){
-    throw std::runtime_error(str(
+    throw uhd::not_implemented_error(str(
         boost::format("Module loading not supported: Cannot load \"%s\"") % file_name
     ));
 }
diff --git a/host/lib/utils/paths.cpp b/host/lib/utils/paths.cpp
index 8d604d849..329695873 100644
--- a/host/lib/utils/paths.cpp
+++ b/host/lib/utils/paths.cpp
@@ -22,7 +22,6 @@
 #include <boost/filesystem.hpp>
 #include <boost/foreach.hpp>
 #include <boost/bind.hpp>
-#include <stdexcept>
 #include <string>
 #include <vector>
 
diff --git a/host/lib/utils/thread_priority.cpp b/host/lib/utils/thread_priority.cpp
index 18f372ec0..bd34055e8 100644
--- a/host/lib/utils/thread_priority.cpp
+++ b/host/lib/utils/thread_priority.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,8 +17,8 @@
 
 #include <uhd/utils/thread_priority.hpp>
 #include <uhd/utils/warning.hpp>
+#include <uhd/exception.hpp>
 #include <boost/format.hpp>
-#include <stdexcept>
 #include <iostream>
 
 bool uhd::set_thread_priority_safe(float priority, bool realtime){
@@ -59,13 +59,13 @@ static void check_priority_range(float priority){
         //get the priority bounds for the selected policy
         int min_pri = sched_get_priority_min(policy);
         int max_pri = sched_get_priority_max(policy);
-        if (min_pri == -1 or max_pri == -1) throw std::runtime_error("error in sched_get_priority_min/max");
+        if (min_pri == -1 or max_pri == -1) throw uhd::os_error("error in sched_get_priority_min/max");
 
         //set the new priority and policy
         sched_param sp;
         sp.sched_priority = int(priority*(max_pri - min_pri)) + min_pri;
         int ret = pthread_setschedparam(pthread_self(), policy, &sp);
-        if (ret != 0) throw std::runtime_error("error in pthread_setschedparam");
+        if (ret != 0) throw uhd::os_error("error in pthread_setschedparam");
     }
 #endif /* HAVE_PTHREAD_SETSCHEDPARAM */
 
@@ -81,7 +81,7 @@ static void check_priority_range(float priority){
         //set the priority class on the process
         int pri_class = (realtime)? REALTIME_PRIORITY_CLASS : NORMAL_PRIORITY_CLASS;
         if (SetPriorityClass(GetCurrentProcess(), pri_class) == 0)
-            throw std::runtime_error("error in SetPriorityClass");
+            throw uhd::os_error("error in SetPriorityClass");
 
         //scale the priority value to the constants
         int priorities[] = {
@@ -92,7 +92,7 @@ static void check_priority_range(float priority){
 
         //set the thread priority on the thread
         if (SetThreadPriority(GetCurrentThread(), priorities[pri_index]) == 0)
-            throw std::runtime_error("error in SetThreadPriority");
+            throw uhd::os_error("error in SetThreadPriority");
     }
 #endif /* HAVE_WIN_SETTHREADPRIORITY */
 
@@ -101,7 +101,7 @@ static void check_priority_range(float priority){
  **********************************************************************/
 #ifdef HAVE_LOAD_MODULES_DUMMY
     void uhd::set_thread_priority(float, bool){
-        throw std::runtime_error("set thread priority not implemented");
+        throw uhd::not_implemented_error("set thread priority not implemented");
     }
 
 #endif /* HAVE_LOAD_MODULES_DUMMY */
diff --git a/host/lib/utils/warning.cpp b/host/lib/utils/warning.cpp
index bc4c79b6e..6a94a0a2c 100644
--- a/host/lib/utils/warning.cpp
+++ b/host/lib/utils/warning.cpp
@@ -16,12 +16,12 @@
 //
 
 #include <uhd/utils/warning.hpp>
+#include <uhd/exception.hpp>
 #include <boost/tokenizer.hpp>
 #include <uhd/utils/static.hpp>
 #include <uhd/types/dict.hpp>
 #include <boost/foreach.hpp>
 #include <sstream>
-#include <stdexcept>
 #include <iostream>
 #include <vector>
 
@@ -76,7 +76,7 @@ void warning::register_handler(
 }
 
 warning::handler_t warning::unregister_handler(const std::string &name){
-    if (not get_registry().has_key(name)) throw std::runtime_error(
+    if (not get_registry().has_key(name)) throw uhd::key_error(
         "The warning registry does not have a handler registered to " + name
     );
     return get_registry().pop(name);
diff --git a/host/lib/wax.cpp b/host/lib/wax.cpp
index 0e2e82a3a..5f658acd8 100644
--- a/host/lib/wax.cpp
+++ b/host/lib/wax.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010 Ettus Research LLC
+// Copyright 2010-2011 Ettus Research LLC
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -16,6 +16,7 @@
 //
 
 #include <uhd/wax.hpp>
+#include <uhd/exception.hpp>
 #include <boost/format.hpp>
 #include <stdexcept>
 
@@ -97,7 +98,7 @@ wax::obj wax::obj::operator[](const obj &key){
             return val.as<link_args_t>()()[key];
         }
         //unknown obj
-        throw std::runtime_error("cannot use [] on non wax::obj link");
+        throw uhd::type_error("cannot use [] on non wax::obj link");
     }
     else{
         return proxy_args_t(this, key);
@@ -142,9 +143,9 @@ boost::any wax::obj::resolve(void) const{
 }
 
 void wax::obj::get(const obj &, obj &){
-    throw std::runtime_error("Cannot call get on wax obj base class");
+    throw uhd::type_error("Cannot call get on wax obj base class");
 }
 
 void wax::obj::set(const obj &, const obj &){
-    throw std::runtime_error("Cannot call set on wax obj base class");
+    throw uhd::type_error("Cannot call set on wax obj base class");
 }