examples & utils: return EXIT_FAILURE and EXIT_SUCCESS respectively

instead of 0 and 1.

18 files changed, 25 insertions, 22 deletions

diff --git a/host/examples/benchmark_rate.cpp b/host/examples/benchmark_rate.cpp
index 8a000f6c3..ed3a8580a 100644
--- a/host/examples/benchmark_rate.cpp
+++ b/host/examples/benchmark_rate.cpp
@@ -25,6 +25,7 @@
 #include <boost/math/special_functions/round.hpp>
 #include <iostream>
 #include <complex>
+#include <cstdlib>
 
 namespace po = boost::program_options;
 
@@ -264,5 +265,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/latency_test.cpp b/host/examples/latency_test.cpp
index 518d2383a..461ac9bf8 100644
--- a/host/examples/latency_test.cpp
+++ b/host/examples/latency_test.cpp
@@ -164,5 +164,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
      **************************************************************/
     std::cout << boost::format("\nACK %d, UNDERFLOW %d, TIME_ERR %d, other %d")
         % ack % underflow % time_error % other << std::endl;
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/network_relay.cpp b/host/examples/network_relay.cpp
index e8f9e667f..bb09296b3 100644
--- a/host/examples/network_relay.cpp
+++ b/host/examples/network_relay.cpp
@@ -24,6 +24,7 @@
 #include <iostream>
 #include <csignal>
 #include <vector>
+#include <cstdlib>
 
 namespace po = boost::program_options;
 namespace asio = boost::asio;
@@ -202,7 +203,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
             << "Runs a network relay between UHD on one computer and a USRP on the network.\n"
             << "This example is basically for test purposes. Use at your own convenience.\n"
             << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     {
@@ -223,5 +224,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/rx_ascii_art_dft.cpp b/host/examples/rx_ascii_art_dft.cpp
index fe8fb0347..1aede51a4 100644
--- a/host/examples/rx_ascii_art_dft.cpp
+++ b/host/examples/rx_ascii_art_dft.cpp
@@ -25,6 +25,7 @@
 #include <curses.h>
 #include <iostream>
 #include <complex>
+#include <cstdlib>
 
 namespace po = boost::program_options;
 
@@ -63,7 +64,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //print the help message
     if (vm.count("help") or not vm.count("rate")){
         std::cout << boost::format("UHD RX ASCII Art DFT %s") % desc << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
 
     //create a usrp device
@@ -82,7 +83,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //set the sample rate
     if (not vm.count("rate")){
         std::cerr << "Please specify the sample rate with --rate" << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
     std::cout << boost::format("Setting RX Rate: %f Msps...") % (rate/1e6) << std::endl;
     usrp->set_rx_rate(rate);
@@ -91,7 +92,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //set the center frequency
     if (not vm.count("freq")){
         std::cerr << "Please specify the center frequency with --freq" << std::endl;
-        return ~0;
+        return EXIT_FAILURE;
     }
     std::cout << boost::format("Setting RX Freq: %f MHz...") % (freq/1e6) << std::endl;
     usrp->set_rx_freq(freq);
@@ -194,5 +195,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/rx_multi_samples.cpp b/host/examples/rx_multi_samples.cpp
index 42ef33d70..83d648eb5 100644
--- a/host/examples/rx_multi_samples.cpp
+++ b/host/examples/rx_multi_samples.cpp
@@ -174,5 +174,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/rx_samples_to_file.cpp b/host/examples/rx_samples_to_file.cpp
index 5197bfe69..d0a02a6c1 100644
--- a/host/examples/rx_samples_to_file.cpp
+++ b/host/examples/rx_samples_to_file.cpp
@@ -214,5 +214,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/rx_samples_to_udp.cpp b/host/examples/rx_samples_to_udp.cpp
index 42b80762f..105db0a02 100644
--- a/host/examples/rx_samples_to_udp.cpp
+++ b/host/examples/rx_samples_to_udp.cpp
@@ -168,5 +168,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/rx_timed_samples.cpp b/host/examples/rx_timed_samples.cpp
index 143bceb03..f0d49b4bd 100644
--- a/host/examples/rx_timed_samples.cpp
+++ b/host/examples/rx_timed_samples.cpp
@@ -124,5 +124,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/test_dboard_coercion.cpp b/host/examples/test_dboard_coercion.cpp
index 5b1e9f0e2..cfc745147 100644
--- a/host/examples/test_dboard_coercion.cpp
+++ b/host/examples/test_dboard_coercion.cpp
@@ -573,5 +573,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     if(test_tx and test_rx) std::cout << std::endl;
     if(test_rx) std::cout << rx_results << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/test_messages.cpp b/host/examples/test_messages.cpp
index afb092092..6f2ddfe28 100644
--- a/host/examples/test_messages.cpp
+++ b/host/examples/test_messages.cpp
@@ -350,5 +350,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/test_pps_input.cpp b/host/examples/test_pps_input.cpp
index 994b7ca87..c07f2fffd 100644
--- a/host/examples/test_pps_input.cpp
+++ b/host/examples/test_pps_input.cpp
@@ -58,5 +58,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     std::cout << std::endl << "Attempt to detect the PPS and set the time..." << std::endl << std::endl;
     usrp->set_time_unknown_pps(uhd::time_spec_t(0.0));
     std::cout << std::endl << "Success!" << std::endl << std::endl;
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/test_timed_commands.cpp b/host/examples/test_timed_commands.cpp
index 34c83dfd6..cecf1607c 100644
--- a/host/examples/test_timed_commands.cpp
+++ b/host/examples/test_timed_commands.cpp
@@ -125,5 +125,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/transport_hammer.cpp b/host/examples/transport_hammer.cpp
index e32912eaa..ff35ceb21 100644
--- a/host/examples/transport_hammer.cpp
+++ b/host/examples/transport_hammer.cpp
@@ -272,5 +272,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/tx_bursts.cpp b/host/examples/tx_bursts.cpp
index 4cf5f2fd1..8dd4a002c 100644
--- a/host/examples/tx_bursts.cpp
+++ b/host/examples/tx_bursts.cpp
@@ -156,5 +156,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/tx_samples_from_file.cpp b/host/examples/tx_samples_from_file.cpp
index 04a6a63d4..f9447c25d 100644
--- a/host/examples/tx_samples_from_file.cpp
+++ b/host/examples/tx_samples_from_file.cpp
@@ -192,5 +192,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/tx_timed_samples.cpp b/host/examples/tx_timed_samples.cpp
index 3b8cc75d4..4cc31a7c0 100644
--- a/host/examples/tx_timed_samples.cpp
+++ b/host/examples/tx_timed_samples.cpp
@@ -124,5 +124,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
 
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp
index 3c5eecd65..40326ae93 100644
--- a/host/examples/tx_waveforms.cpp
+++ b/host/examples/tx_waveforms.cpp
@@ -260,5 +260,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
-    return 0;
+    return EXIT_SUCCESS;
 }
diff --git a/host/examples/txrx_loopback_to_file.cpp b/host/examples/txrx_loopback_to_file.cpp
index 495c9f7e4..9dc348da8 100644
--- a/host/examples/txrx_loopback_to_file.cpp
+++ b/host/examples/txrx_loopback_to_file.cpp
@@ -443,5 +443,5 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
 
     //finished
     std::cout << std::endl << "Done!" << std::endl << std::endl;
-    return 0;
+    return EXIT_SUCCESS;
 }