examples & utils: return EXIT_FAILURE and EXIT_SUCCESS respectively

instead of 0 and 1.

9 files changed, 31 insertions, 27 deletions

diff --git a/host/utils/fx2_init_eeprom.cpp b/host/utils/fx2_init_eeprom.cpp
index c210ae575..701092a5d 100644
--- a/host/utils/fx2_init_eeprom.cpp
+++ b/host/utils/fx2_init_eeprom.cpp
@@ -41,12 +41,12 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     po::variables_map vm;
     po::store(po::parse_command_line(argc, argv, desc), vm);
-    po::notify(vm); 
+    po::notify(vm);
 
     //print the help message
     if (vm.count("help")){
         std::cout << boost::format("USRP EEPROM initialization %s") % desc << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     //cant find a uninitialized usrp with this mystery module in the way...
@@ -76,7 +76,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     if (found_addrs.size() == 0){
         std::cerr << "No USRP devices found" << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     for (size_t i = 0; i < found_addrs.size(); i++){
@@ -89,5 +89,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
 
     std::cout << "Power-cycle the usrp for the changes to take effect." << std::endl;
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/uhd_cal_rx_iq_balance.cpp b/host/utils/uhd_cal_rx_iq_balance.cpp
index 7b6f10f3b..ab951b754 100644
--- a/host/utils/uhd_cal_rx_iq_balance.cpp
+++ b/host/utils/uhd_cal_rx_iq_balance.cpp
@@ -29,6 +29,7 @@
 #include <complex>
 #include <cmath>
 #include <ctime>
+#include <cstdlib>
 
 namespace po = boost::program_options;
 
@@ -120,7 +121,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         std::cout <<
             "This application measures leakage between RX and TX on an XCVR daughterboard to self-calibrate.\n"
             << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     //create a usrp device
@@ -236,5 +237,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     store_results(usrp, results, "RX", "rx", "iq");
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/uhd_cal_tx_dc_offset.cpp b/host/utils/uhd_cal_tx_dc_offset.cpp
index 1b2510ba4..152f61918 100644
--- a/host/utils/uhd_cal_tx_dc_offset.cpp
+++ b/host/utils/uhd_cal_tx_dc_offset.cpp
@@ -123,7 +123,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         std::cout <<
             "This application measures leakage between RX and TX on an XCVR daughterboard to self-calibrate.\n"
             << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     //create a usrp device
@@ -234,5 +234,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     store_results(usrp, results, "TX", "tx", "dc");
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/uhd_cal_tx_iq_balance.cpp b/host/utils/uhd_cal_tx_iq_balance.cpp
index cff3d1646..4c8642660 100644
--- a/host/utils/uhd_cal_tx_iq_balance.cpp
+++ b/host/utils/uhd_cal_tx_iq_balance.cpp
@@ -28,6 +28,7 @@
 #include <iostream>
 #include <complex>
 #include <ctime>
+#include <cstdlib>
 
 namespace po = boost::program_options;
 
@@ -123,7 +124,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         std::cout <<
             "This application measures leakage between RX and TX on an XCVR daughterboard to self-calibrate.\n"
             << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     //create a usrp device
@@ -239,5 +240,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     store_results(usrp, results, "TX", "tx", "iq");
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/uhd_find_devices.cpp b/host/utils/uhd_find_devices.cpp
index b778eeb68..c258c580e 100644
--- a/host/utils/uhd_find_devices.cpp
+++ b/host/utils/uhd_find_devices.cpp
@@ -20,6 +20,7 @@
 #include <boost/program_options.hpp>
 #include <boost/format.hpp>
 #include <iostream>
+#include <cstdlib>
 
 namespace po = boost::program_options;
 
@@ -37,7 +38,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //print the help message
     if (vm.count("help")){
         std::cout << boost::format("UHD Find Devices %s") % desc << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     //discover the usrps and print the results
@@ -45,7 +46,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     if (device_addrs.size() == 0){
         std::cerr << "No UHD Devices Found" << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     for (size_t i = 0; i < device_addrs.size(); i++){
@@ -56,5 +57,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         //uhd::device::make(device_addrs[i]); //test make
     }
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/uhd_usrp_probe.cpp b/host/utils/uhd_usrp_probe.cpp
index 5b3702fb4..736490f19 100644
--- a/host/utils/uhd_usrp_probe.cpp
+++ b/host/utils/uhd_usrp_probe.cpp
@@ -30,6 +30,7 @@
 #include <iostream>
 #include <sstream>
 #include <vector>
+#include <cstdlib>
 
 namespace po = boost::program_options;
 using namespace uhd;
@@ -197,12 +198,12 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //print the help message
     if (vm.count("help")){
         std::cout << boost::format("UHD USRP Probe %s") % desc << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     if (vm.count("version")){
         std::cout << uhd::get_version_string() << std::endl;
-        return 0;
+        return EXIT_SUCCESS;
     }
 
     device::sptr dev = device::make(vm["args"].as<std::string>());
@@ -210,11 +211,11 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     if (vm.count("string")){
         std::cout << tree->access<std::string>(vm["string"].as<std::string>()).get() << std::endl;
-        return 0;
+        return EXIT_SUCCESS;
     }
 
     if (vm.count("tree") != 0) print_tree("/", tree);
     else std::cout << make_border(get_device_pp_string(tree)) << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/usrp_burn_db_eeprom.cpp b/host/utils/usrp_burn_db_eeprom.cpp
index b6b2dc4d6..3ca953115 100644
--- a/host/utils/usrp_burn_db_eeprom.cpp
+++ b/host/utils/usrp_burn_db_eeprom.cpp
@@ -58,7 +58,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
             "Omit the ID argument to perform readback,\n"
             "Or specify a new ID to burn into the EEPROM.\n"
         ) << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     //make the device and extract the dboard w/ property
@@ -96,5 +96,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     std::cout << boost::format("  Current revision: \"%s\"") % db_eeprom.revision << std::endl;
 
     std::cout << "  Done" << std::endl << std::endl;
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/usrp_burn_mb_eeprom.cpp b/host/utils/usrp_burn_mb_eeprom.cpp
index ca9a6c8ba..1b13fb615 100644
--- a/host/utils/usrp_burn_mb_eeprom.cpp
+++ b/host/utils/usrp_burn_mb_eeprom.cpp
@@ -47,7 +47,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
             "Omit the value argument to perform a readback,\n"
             "Or specify a new value to burn into the EEPROM.\n"
         ) << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     std::cout << "Creating USRP device from address: " + args << std::endl;
@@ -60,7 +60,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         uhd::usrp::mboard_eeprom_t mb_eeprom = tree->access<uhd::usrp::mboard_eeprom_t>("/mboards/0/eeprom").get();
         if (not mb_eeprom.has_key(key)){
             std::cerr << boost::format("Cannot find value for EEPROM[%s]") % key << std::endl;
-            return ~0;
+            return EXIT_FAILURE;
         }
         std::cout << boost::format("    EEPROM [\"%s\"] is \"%s\"") % key % mb_eeprom[key] << std::endl;
         std::cout << std::endl;
@@ -74,5 +74,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     }
 
     std::cout << "Done" << std::endl;
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/utils/usrp_n2xx_simple_net_burner.cpp b/host/utils/usrp_n2xx_simple_net_burner.cpp
index abbbf37da..2f592adfc 100644
--- a/host/utils/usrp_n2xx_simple_net_burner.cpp
+++ b/host/utils/usrp_n2xx_simple_net_burner.cpp
@@ -365,7 +365,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         std::cout << boost::format("Automatically detects and burns standard firmware and FPGA images onto USRP N2XX devices.\n");
         std::cout << boost::format("Can optionally take user input for custom images.\n\n");
         std::cout << desc << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     bool burn_fpga = (vm.count("no_fpga") == 0);
@@ -376,7 +376,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     if(!burn_fpga && !burn_fw){
         std::cout << "No images will be burned." << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     if(!burn_fw && use_custom_fw)     std::cout << boost::format("Conflicting firmware options presented. Will not burn a firmware image.\n\n");
@@ -418,7 +418,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
             }
         
         }
-        return ~0;
+        return EXIT_FAILURE;
     }
     std::cout << boost::format("Searching for USRP N2XX with IP address %s.\n") % ip_addr;
 
@@ -512,7 +512,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     }
     std::cout << std::endl; //Formatting
     if(reset) reset_usrp(udp_transport);
-    else return 0;
+    else return EXIT_SUCCESS;
 
-    return 0;
+    return EXIT_SUCCESS;
 }