Fixed minor warnings

* Mismatched printf format strings
* Number truncation
* Unreferenced variables

6 files changed, 13 insertions, 12 deletions

diff --git a/host/examples/tx_samples_c.c b/host/examples/tx_samples_c.c
index ebf368ec7..c052d80ed 100644
--- a/host/examples/tx_samples_c.c
+++ b/host/examples/tx_samples_c.c
@@ -189,7 +189,7 @@ int main(int argc, char* argv[]){
     buffs_ptr = (const void**)&buff;
     size_t i = 0;
     for(i = 0; i < (samps_per_buff*2); i+=2){
-        buff[i] = 0.1;
+        buff[i]   = 0.1f;
         buff[i+1] = 0;
     }
 
diff --git a/host/tests/ranges_c_test.c b/host/tests/ranges_c_test.c
index da9c86a48..2398588a6 100644
--- a/host/tests/ranges_c_test.c
+++ b/host/tests/ranges_c_test.c
@@ -1,5 +1,5 @@
 //
-// Copyright 2015 Ettus Research LLC
+// Copyright 2015-2016 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
@@ -155,7 +155,7 @@ int main(){
     if(size != 2){
         fprintf(stderr, "%s:%d: Invalid size: %lu vs. 2",
                         __FILE__, __LINE__,
-                        size);
+                        (unsigned long)size);
         goto free_meta_range1;
     }
 
diff --git a/host/tests/string_vector_c_test.c b/host/tests/string_vector_c_test.c
index fe055fd91..f7f2f7b69 100644
--- a/host/tests/string_vector_c_test.c
+++ b/host/tests/string_vector_c_test.c
@@ -1,5 +1,5 @@
 //
-// Copyright 2015 Ettus Research LLC
+// Copyright 2015-2016 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
@@ -60,7 +60,7 @@ int main(){
     if(size != 2){
         return_code = EXIT_FAILURE;
         fprintf(stderr, "%s:%d: Invalid size: %lu vs. 2",
-                        __FILE__, __LINE__,size);
+                        __FILE__, __LINE__, (unsigned long)size);
         goto free_string_vector;
     }
 
diff --git a/host/tests/subdev_spec_c_test.c b/host/tests/subdev_spec_c_test.c
index 7663ba357..f69b825a8 100644
--- a/host/tests/subdev_spec_c_test.c
+++ b/host/tests/subdev_spec_c_test.c
@@ -1,5 +1,5 @@
 //
-// Copyright 2015 Ettus Research LLC
+// Copyright 2015-2016 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
@@ -71,7 +71,8 @@ int main(){
         uhd_subdev_spec_size(subdev_spec2, &size2)
     )
     if(size1 != size2){
-        printf("%s:%d: Sizes do not match. %lu vs. %lu\n", __FILE__, __LINE__, size1, size2);
+        printf("%s:%d: Sizes do not match. %lu vs. %lu\n", __FILE__, __LINE__,
+               (unsigned long)size1, (unsigned long)size2);
         return_code = EXIT_FAILURE;
         goto free_subdev_spec2;
     }
diff --git a/host/utils/query_gpsdo_sensors.cpp b/host/utils/query_gpsdo_sensors.cpp
index 21d26e81e..01a5adec5 100644
--- a/host/utils/query_gpsdo_sensors.cpp
+++ b/host/utils/query_gpsdo_sensors.cpp
@@ -91,7 +91,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
       std::cout << "trying \"external\"..." <<std::endl;
       try {
           usrp->set_time_source("external");
-      } catch (uhd::value_error &e) {
+      } catch (uhd::value_error&) {
           std::cout << "\"external\" failed, too." << std::endl;
       }
   }
@@ -115,7 +115,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
       std::cout << "trying \"external\"..." <<std::endl;
       try{
           usrp->set_clock_source("external");
-      } catch (uhd::value_error &e) {
+      } catch (uhd::value_error&) {
           std::cout << "\"external\" failed, too." << std::endl;
       }
   }
@@ -179,7 +179,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
       uhd::sensor_value_t rmc_string = usrp->get_mboard_sensor("gps_gprmc");
       std::cout << boost::format("Printing available NMEA strings:\n");
       std::cout << boost::format("%s\n%s\n") % gga_string.to_pp_string() % rmc_string.to_pp_string();
-  } catch (uhd::lookup_error &e) {
+  } catch (uhd::lookup_error&) {
       std::cout << "NMEA strings not implemented for this device." << std::endl;
   }
   std::cout << boost::format("GPS Epoch time at last PPS: %.5f seconds\n") % usrp->get_mboard_sensor("gps_time").to_real();
diff --git a/host/utils/uhd_usrp_probe.cpp b/host/utils/uhd_usrp_probe.cpp
index 4a84fef55..ae86b0dba 100644
--- a/host/utils/uhd_usrp_probe.cpp
+++ b/host/utils/uhd_usrp_probe.cpp
@@ -1,5 +1,5 @@
 //
-// Copyright 2010-2011,2015 Ettus Research LLC
+// Copyright 2010-2011,2015-2016 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
@@ -172,7 +172,7 @@ static std::string get_mboard_pp_string(property_tree::sptr tree, const fs_path
             ss << make_border(get_dboard_pp_string("TX", tree, path / "dboards" / name));
         }
     }
-    catch (const uhd::lookup_error &e) {
+    catch (const uhd::lookup_error&) {
         /* nop */
     }
     return ss.str();